14 Best Single Dumbbells for Home Strength Training in 2027

The best single dumbbells depend on whether you need one specific weight, a beginner-friendly hand weight, or a compact adjustable option. My best overall pick is the Marcy Classic Rubber Hex Dumbbell, which offers a broad weight range and a practical shape for everyday strength work. For straightforward value, the Amazon Basics Rubber Hex Dumbbell is a simple fixed-weight choice; for a wider range in one unit, the BowFlex Results Series SelectTech Adjustable Dumbbell is the standout. The main tradeoffs are fixed-weight simplicity versus adjustable versatility, along with grip comfort, storage footprint, and the weight you need for your exercises. Read on for the full comparison and recommendations by buyer type.

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Key Takeaways

• The amazon.com/dp/B074DZGRMG?tag=sadgear.com-20&ascsubtag=dc-1216818″ target=”_blank” rel=”nofollow sponsored noopener”>amazon.com/dp/B074DZ65J3?tag=sadgear.com-20&ascsubtag=dc-1216818″ target=”_blank” rel=”nofollow sponsored noopener”>amazon.com/dp/B0C8KMCNMC?tag=sadgear.com-20&ascsubtag=dc-1216818″ target=”_blank” rel=”nofollow sponsored noopener”>Marcy Classic Rubber Hex Dumbbell is the most adaptable fixed-weight pick: its 5–70 lb range gives buyers many load options, though each weight is sold individually.
• Amazon Basics rubber hex models favor simplicity: fixed weights avoid adjustment mechanisms, but choosing a single weight limits exercise progression unless you add more dumbbells.
• Adjustable models solve a storage problem, not every training problem: BowFlex, Yagud, the 25 lb Chrome model, and Amazon Basics Adjustable offer multiple loads in one unit, with more setup and mechanism tradeoffs than fixed weights.
• Marcy Neoprene weights fill the light-duty niche: their 1–10 lb options suit lighter routines and controlled movements, but they are not substitutes for heavier strength-training loads.
• Weight labels and sold-individually listings matter: these products vary widely in format, and buyers should confirm the exact weight, included quantity, and adjustment range before choosing.

Our Top Best Single Dumbbells Picks

Amazon Basics 15-Pound Rubber Hex Dumbbell		Best for Midweight Strength Training	Brand: Amazon Basics	Weight: 15 pounds	Material: Rubber-encased cast iron	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Neoprene Dumbbell, 5 lb, Single		Best for Light Home Workouts	Brand: Marcy	Weight: 5 lb	Quantity: 1 dumbbell	VIEW LATEST PRICE	See Our Full Breakdown
Amazon Basics Rubber Hex Dumbbell Hand Weight – 10 lb		Best All-Purpose Fixed Weight	Brand: Amazon Basics	Weight: 10 pounds	Dimensions: 10.7 × 4 inches	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Neoprene Dumbbell, 3 lb, Single		Best for Beginners and Light Exercises	Brand: Marcy	Weight: 3 lb	Quantity: 1 dumbbell	VIEW LATEST PRICE	See Our Full Breakdown
Yagud 28 lb Adjustable Dumbbell		Best Adjustable Single Dumbbell	Brand: Yagud	Maximum weight: 28 lbs	Weight settings: 11: 3, 5.5, 8, 10.5, 13, 15.5, 18, 20.5, 23, 25.5, and 28 lbs	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Neoprene Dumbbell, 10 lb, Single		Best Neoprene Pick for Everyday Home Workouts	Weight: 10 lb	Quantity: 1 dumbbell	Core: Cast iron	VIEW LATEST PRICE	See Our Full Breakdown
25 lb Adjustable Chrome Dumbbell		Best Compact Adjustable Pick	Weight settings: 5, 10, 15, 20, and 25 lb	Increments: 5 lb	Adjustment mechanism: Single-hand quick adjust	VIEW LATEST PRICE	See Our Full Breakdown
Amazon Basics Rubber Hex Dumbbell		Best Fixed 25 lb Workhorse	Weight: 25 lb (11.34 kg)	Unit count: 1	Dimensions: 12.5 in L × 5.25 in W	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Hammertone Cast Iron Hex Dumbbell – 3 to 100 lbs, sold individually		Best Broad Weight-Range Fixed Dumbbell	Listed weight: 10 lb	Available range: 3–100 lb	Unit count: 1	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Neoprene Dumbbell, 1 lb, Single		Best for Light Movement and Rehab-Style Routines	Weight: 1 lb	Quantity: 1 dumbbell	Core: Cast iron	VIEW LATEST PRICE	See Our Full Breakdown
BowFlex Results Series SelectTech Adjustable Dumbbell		Best Adjustable Range	Weight range: 5–52.5 lb	Item weight: 55 lb	Dimensions: 16.9 in L × 8.3 in W	VIEW LATEST PRICE	See Our Full Breakdown
Amazon Basics Adjustable Dumbbell, 25 lb		Best Value Adjustable Pick	Weight options: 5, 10, 15, 20, and 25 lb	Number of items: 1 dumbbell	Item weight: 11.34 kg	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Neoprene Dumbbell Hand Weight, 2 lb, Single		Best for Light Exercise	Weight: 2 lb	Quantity: 1 dumbbell	Material: Cast iron with neoprene coating	VIEW LATEST PRICE	See Our Full Breakdown
Marcy Classic Rubber Hex Dumbbell, 5–70 lb, Single		Best Fixed-Weight Progression	Weight options: 5, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, and 70 lb	Unit count: 1	Core material: Cast iron	VIEW LATEST PRICE	See Our Full Breakdown

More Details on Our Top Picks

1. Amazon Basics 15-Pound Rubber Hex Dumbbell

   

   Best for Midweight Strength Training

   View Latest Price

   The 15-pound fixed weight suits buyers who want more resistance than the lighter Marcy neoprene options without moving to an adjustable set. Its rubber-encased cast-iron heads and hex shape combine a sturdy feel with less rolling between sets, while the contoured, textured handle supports a secure grip during varied strength exercises. Compared with the Amazon Basics 10-pound Rubber Hex Dumbbell, this model offers a more demanding load but may be harder to use for high-repetition work or smaller muscle groups. The tradeoff is straightforward: you get a durable single dumbbell, not a way to change resistance as you progress. Since it is sold individually, buyers who need balanced two-handed movements will need to source a matching weight separately.

   Pros:

   • Rubber-encased cast-iron heads offer a solid, durable construction
   • Hexagonal ends help keep it from rolling between exercises
   • Textured, contoured handle supports a secure grip
   • 15-pound load offers more resistance than the listed 10-pound Amazon Basics model

   Cons:

   • Fixed at 15 pounds, so it cannot adapt as strength or exercise needs change
   • Sold as one dumbbell rather than a pair
   • May be too heavy for beginners or lighter isolation exercises

   Best for: Home exercisers who already handle lighter weights comfortably and want one fixed 15-pound dumbbell for moderate resistance work.

   Not ideal for: Beginners who need very light starting resistance, or buyers who want a matched pair or multiple weight settings in one purchase.

   • Brand:Amazon Basics
   • Weight:15 pounds
   • Material:Rubber-encased cast iron
   • Handle material:Rubber
   • Handle diameter:1.34 inches
   • Dimensions:12 × 4.5 inches
   • Quantity:1 dumbbell
   • Color:Black
   Our verdict

   “Choose this single dumbbell if 15 pounds fits your current training and you prefer a sturdy fixed weight over an adjustable option.”

   → See it on Amazon →

2. Marcy Neoprene Dumbbell, 5 lb, Single

   

   Best for Light Home Workouts

   View Latest Price

   The 5-pound Marcy is a practical single weight for light resistance sessions, controlled repetitions, and exercises where a compact dumbbell is easier to handle than the heavier rubber hex models. Its textured neoprene coating and slip-resistant handle aim to keep the grip secure, and the no-roll head helps prevent it from wandering when set down. Compared with the Marcy Neoprene Dumbbell, 3 lb, Single, this one provides a modest step up in load; it remains much lighter than the Amazon Basics 10- and 15-pound options. That makes it a better fit for lighter routines, not a substitute for heavier strength work. It is also sold individually, so paired exercises require another dumbbell, and the fixed weight limits its usefulness as training needs change.

   Pros:

   • Textured neoprene coating supports a more secure hold
   • No-roll head helps keep it in place between exercises
   • Compact 7 × 3.5-inch dimensions suit home workout spaces
   • Rust-resistant construction is suited to regular home use

   Cons:

   • Fixed 5-pound load may be too light for strength-focused training
   • Sold as one dumbbell rather than a pair
   • Neoprene format offers less load than the Amazon Basics rubber hex options

   Best for: People building a light home routine who want a compact 5-pound weight for controlled movements and higher-repetition exercises.

   Not ideal for: Lifters seeking substantial resistance, a pair in one purchase, or a weight that can grow with their strength.

   • Brand:Marcy
   • Weight:5 lb
   • Quantity:1 dumbbell
   • Material:Neoprene
   • Handle diameter:1.25 inches
   • Dimensions:7 × 3.5 inches
   • Features:Non-slip handle, no-roll head, rust resistant
   • Model:INE-005
   Our verdict

   “Pick this Marcy if you need one compact, light dumbbell for home workouts and do not need heavier or adjustable resistance.”

   → See it on Amazon →

3. Amazon Basics Rubber Hex Dumbbell Hand Weight – 10 lb

   

   Best All-Purpose Fixed Weight

   View Latest Price

   This 10-pound rubber hex dumbbell lands between the 5-pound Marcy and 15-pound Amazon Basics model, giving buyers a useful middle load for a range of home strength exercises. Its cast-iron core with rubber-encased heads is a sturdier format than the neoprene-coated Marcy options, and the hex ends help keep it from rolling when you set it down. The contoured, non-slip handle is designed for a comfortable hold across arm, chest, back, core, and leg movements. Compared with the Amazon Basics 15-Pound Rubber Hex Dumbbell, this is easier to manage for lighter sets but offers less resistance as strength increases. The main compromise is a fixed, single-dumbbell purchase; it cannot replace a weight range or provide a matched pair by itself. The supplied product data also notes a possible initial rubber odor.

   Pros:

   • Cast-iron construction with rubber-encased heads
   • Hexagonal ends help prevent rolling
   • Non-slip, contoured handle supports a comfortable grip
   • 10-pound weight sits between the listed 5- and 15-pound fixed options

   Cons:

   • Fixed at 10 pounds and may be too light for advanced lifters
   • Sold individually rather than as a pair
   • Rubber may have an initial odor

   Best for: Home exercisers who want one versatile 10-pound dumbbell for general resistance training and prefer a rubber-coated iron build.

   Not ideal for: Advanced lifters who need heavier loads, or buyers who want adjustable resistance or a pair supplied together.

   • Brand:Amazon Basics
   • Weight:10 pounds
   • Dimensions:10.7 × 4 inches
   • Handle diameter:1.07 inches
   • Material:Rubber
   • Color:Black
   • Model number:CD-10LB
   • Quantity:1 dumbbell
   Our verdict

   “Choose this model if 10 pounds is a useful middle ground for your routine and you value a fixed rubber hex design over adjustable weights.”

   → See it on Amazon →

4. Marcy Neoprene Dumbbell, 3 lb, Single

   

   Best for Beginners and Light Exercises

   View Latest Price

   At 3 pounds, this Marcy is the lightest fixed option in this group and is suited to buyers who want a gentle starting load for controlled movements. Its neoprene-coated cast-iron body, textured handle, and no-roll head make it a compact choice for home use; the coating is also described as rust resistant. Compared with the Marcy Neoprene Dumbbell, 5 lb, Single, this model gives beginners or light-exercise routines a lower-resistance alternative, while the Amazon Basics 10-pound dumbbell is a more substantial choice for strength work. That lighter load is also its main limit: it may not provide enough challenge for many exercises, and progress means moving to another fixed weight. The listing includes just one dumbbell, so buyers planning paired movements must purchase a second separately.

   Pros:

   • Light 3-pound load suits low-resistance exercises
   • Textured neoprene coating and handle support a secure grip
   • No-roll head helps keep the dumbbell in place between sets
   • Rust-resistant design is suited to home storage

   Cons:

   • May be too light for many strength-training movements
   • Sold as one dumbbell rather than a pair
   • Fixed weight offers no progression without buying another dumbbell

   Best for: Beginners, older adults, or people doing light home routines who specifically need a single low-weight dumbbell.

   Not ideal for: People seeking general-purpose strength training or a weight that remains challenging as they progress.

   • Brand:Marcy
   • Weight:3 lb
   • Quantity:1 dumbbell
   • Material:Cast iron with neoprene coating
   • Handle material:Neoprene
   • Dimensions:6 in L × 2.6 in W
   • Features:Non-slip, no-roll head, rust resistant
   • Model:INE-003
   Our verdict

   “Choose this Marcy if a very light single dumbbell is your priority; move to the 5-pound Marcy or a rubber hex model if you need more resistance.”

   → See it on Amazon →

5. Yagud 28 lb Adjustable Dumbbell

   

   Best Adjustable Single Dumbbell

   View Latest Price

   The Yagud adjustable dumbbell is the most flexible pick here: its dial selects among 11 settings from 3 to 28 pounds, letting one dumbbell cover loads that otherwise require several fixed options. That range spans the light territory of the Marcy 3- and 5-pound models and reaches well beyond them, while its 28-pound ceiling stays below the heavier possibilities in an adjustable set with a higher maximum. A dual-lock system is designed to secure the plates during lifts, and the included tray gives the unit a dedicated storage spot. The tradeoff is a larger, more mechanically involved design than the simple fixed hex dumbbells, and its maximum load may eventually limit stronger lifters. It is still a single dumbbell, so paired movements call for another unit or a separate weight.

   Pros:

   • 11 settings provide a broad range from 3 to 28 pounds
   • Dual-lock system is designed to secure plates during lifts
   • Included storage tray keeps the dumbbell in a dedicated spot
   • Textured grip supports handling across weight settings

   Cons:

   • Maximum weight of 28 pounds may limit stronger lifters
   • Sold as a single dumbbell, not a pair
   • Dial-and-plate mechanism is more involved than a fixed rubber hex design

   Best for: Home trainees who want several resistance levels in one compact storage setup and are comfortable using a dial-adjustable dumbbell.

   Not ideal for: Buyers who want a simple fixed dumbbell, need a pair in one purchase, or expect to outgrow a 28-pound maximum.

   • Brand:Yagud
   • Maximum weight:28 lbs
   • Weight settings:11: 3, 5.5, 8, 10.5, 13, 15.5, 18, 20.5, 23, 25.5, and 28 lbs
   • Item weight:28 lbs
   • Dimensions:15.7 × 8.1 in (L × W)
   • Quantity:1 dumbbell
   • Grip:Textured, standard size
   • Materials:Solid steel core with protective outer shell
   • Included:Storage tray
   Our verdict

   “Choose the Yagud if one adjustable dumbbell can replace several fixed weights in your home setup and 28 pounds is enough for your training.”

   → See it on Amazon →

6. Marcy Neoprene Dumbbell, 10 lb, Single

   

   Best Neoprene Pick for Everyday Home Workouts

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   The 10 lb Marcy Neoprene Dumbbell is a practical middle-weight choice for home workouts where grip and floor-friendly handling matter more than a bare-metal finish. Its textured neoprene handle helps keep the dumbbell secure during higher-repetition sets, while the no-roll head keeps it from wandering between exercises. Compared with the Marcy Neoprene Dumbbell, 1 lb, this one can support more demanding strength and conditioning work; the 1 lb model is better for light movement and rehab-style routines. The cast iron core gives it a simple, fixed-weight build, but it cannot replace an adjustable model when exercises call for several loads. It is also sold as one dumbbell, so paired movements require buying another.

   Pros:

   • Textured neoprene handle supports a secure grip during repeated sets.
   • No-roll head helps keep the dumbbell in place between exercises.
   • Rust-resistant coating suits home storage and regular use.
   • Fixed 10 lb load offers a useful step up from the 1 lb Marcy model.

   Cons:

   • Sold as a single dumbbell, so a pair requires a separate purchase.
   • The fixed weight cannot adapt to exercises that call for lighter or heavier resistance.

   Best for: Home exercisers who want a fixed 10 lb weight for moderate-strength and higher-repetition routines, with a coated grip that feels less harsh than bare iron.

   Not ideal for: Buyers who need a matched pair in one purchase or want one compact dumbbell that can shift between several resistance levels.

   • Weight:10 lb
   • Quantity:1 dumbbell
   • Core:Cast iron
   • Coating:Neoprene
   • Handle diameter:1 in
   • Dimensions:8.3 in L × 3.7 in W
   • Features:Non-slip handle, no-roll head, rust resistant
   • Model:INE-010
   Our verdict

   “Choose this single 10 lb Marcy if you want a grippy, coated fixed weight for home training and do not mind purchasing a second dumbbell separately.”

   → See it on Amazon →

7. 25 lb Adjustable Chrome Dumbbell

   

   Best Compact Adjustable Pick

   View Latest Price

   For buyers who want several training loads without a rack of individual weights, this adjustable dumbbell offers five settings from 5 to 25 lb in one compact footprint. Its single-hand quick adjust makes load changes easier between exercises than swapping separate fixed dumbbells, while the included tray gives the plates a defined place to sit. That makes it more space-efficient than adding multiple single weights such as the Amazon Basics Rubber Hex Dumbbell. The tradeoff is its 25 lb ceiling: lifters progressing to heavier rows or presses may outgrow it, and the 5 lb steps offer less fine-tuning than smaller increments would. The chrome plates and housed adjustment mechanism also make this a more mechanically involved choice than a basic cast-iron dumbbell.

   Pros:

   • Five settings from 5 to 25 lb replace several separate dumbbells.
   • Single-hand adjustment supports quicker changes between exercises.
   • Included tray keeps the dumbbell stored in a designated spot.
   • Compact 0.24 sq ft footprint per dumbbell suits small workout spaces.

   Cons:

   • Maximum resistance is 25 lb, which may limit progression for stronger lifters.
   • Weight changes are restricted to 5 lb increments.
   • The adjustment mechanism is more complex than a fixed cast-iron dumbbell.

   Best for: Apartment or home-gym users who need several light-to-moderate loads in a small storage area and value quick changes between exercises.

   Not ideal for: Lifters who need resistance above 25 lb, want smaller weight jumps, or prefer the simplicity of a fixed one-piece dumbbell.

   • Weight settings:5, 10, 15, 20, and 25 lb
   • Increments:5 lb
   • Adjustment mechanism:Single-hand quick adjust
   • Handle construction:POM tube with metal inner shaft
   • Finish:Mirror-chrome steel plates with matte black housing
   • Included accessory:Storage tray
   • Footprint:0.24 sq ft per dumbbell
   • Rotation testing:Over 10,000 cycles
   Our verdict

   “Pick this adjustable model if space and changing loads matter more than a higher maximum weight or the simplicity of a fixed dumbbell.”

   → See it on Amazon →

8. Amazon Basics Rubber Hex Dumbbell

   

   Best Fixed 25 lb Workhorse

   View Latest Price

   This 25 lb Amazon Basics Rubber Hex Dumbbell suits buyers who want a straightforward, fixed load for strength work without an adjustment system to manage. Its cast iron core and rubber coating pair durable construction with some protection for floors, and the hexagonal heads stay put between sets. Compared with the 25 lb Adjustable Chrome Dumbbell, it gives up multiple weight settings and compact all-in-one storage, but its one-piece design avoids changing plates or relying on an adjustment mechanism. The contoured, textured handle adds grip comfort, though its 1.32 in diameter is wider than the 1 in handle on the Marcy neoprene dumbbells. Most importantly, this listing is a single 25 lb dumbbell; that load may be too heavy for newer lifters, and lighter exercises require another weight.

   Pros:

   • Cast iron core provides a solid fixed-weight construction.
   • Rubber coating helps protect floors during ordinary handling and storage.
   • Hexagonal heads prevent rolling between exercises.
   • Textured, contoured handle supports a secure grip.

   Cons:

   • Only one 25 lb weight is included, which may be too heavy for beginners.
   • Fixed weight offers no lighter or heavier settings.
   • A 1.32 in handle may feel thick compared with the Marcy neoprene models.

   Best for: Experienced home or gym lifters who want one durable 25 lb dumbbell for rows, carries, and other fixed-load exercises.

   Not ideal for: Beginners who need lighter resistance, or buyers who want a matched pair or several weights from one compact unit.

   • Weight:25 lb (11.34 kg)
   • Unit count:1
   • Dimensions:12.5 in L × 5.25 in W
   • Handle diameter:1.32 in
   • Material:Cast iron core with rubber coating
   • Shape:Hexagonal heads
   • Color:Black
   • Model:CD-25LB
   Our verdict

   “Choose this if you specifically need a single, durable 25 lb weight; skip it if you need beginner-friendly loads or an adjustable range.”

   → See it on Amazon →

9. Marcy Hammertone Cast Iron Hex Dumbbell – 3 to 100 lbs, sold individually

   

   Best Broad Weight-Range Fixed Dumbbell

   View Latest Price

   The Marcy Hammertone stands out for buyers who want a traditional cast-iron dumbbell and the option to select sizes across a broad 3–100 lb range. The listed unit is 10 lb, while the wider range makes it easier to build a consistent set over time than relying on a single fixed size. Its hexagonal head prevents rolling, and the compact form is easier to stack than the rubber-coated Amazon Basics 25 lb model. Unlike the 25 lb Adjustable Chrome Dumbbell, this is a simple one-piece weight with no settings to change, but each load must be purchased separately. Bare cast iron also lacks the floor-cushioning rubber or softer neoprene coating found on other picks, and the listing includes neither a pair nor a storage rack.

   Pros:

   • Available in sizes from 3 to 100 lb for a broad range of training needs.
   • Hexagonal head helps prevent rolling during breaks between sets.
   • Compact shape supports space-saving stacking.
   • Cast-iron handle provides a firm, direct grip.

   Cons:

   • Sold individually, so paired exercises require purchasing a second dumbbell.
   • No rack or stand is included for organized storage.
   • Bare cast iron offers less floor protection than the rubber-coated Amazon Basics model.

   Best for: Buyers who prefer fixed cast-iron weights and plan to build a collection gradually across a wide range of loads.

   Not ideal for: People seeking floor-friendly coated heads, a ready-made pair, or multiple resistance settings in one compact dumbbell.

   • Listed weight:10 lb
   • Available range:3–100 lb
   • Unit count:1
   • Dimensions:9.88 in L × 3.5 in W
   • Handle diameter:1 in
   • Material:Cast iron
   • Color:Black
   • Model number:IBRH-35
   Our verdict

   “Choose the Marcy Hammertone if you want a simple fixed cast-iron weight and value selecting from many sizes over built-in adjustability or coated heads.”

   → See it on Amazon →

10. Marcy Neoprene Dumbbell, 1 lb, Single

    

    Best for Light Movement and Rehab-Style Routines

    View Latest Price

    The 1 lb Marcy Neoprene Dumbbell is a specialized pick for light movement, gentle conditioning, and routines where even modest added resistance is enough. Its neoprene-coated body and non-slip handle provide a more comfortable, grippy feel than the bare cast iron of the Marcy Hammertone, while the no-roll head helps keep it settled between exercises. This is a very different tool from the Marcy Neoprene Dumbbell, 10 lb: the heavier model suits strength work, but this one is better for low-load movements and users who need minimal resistance. Its fixed 1 lb weight is also less versatile for general strength training, and the fuchsia color may not suit every preference. As with the other single Marcy weights, the listing contains one dumbbell, not a pair.

    Pros:

    • Very light 1 lb load suits low-resistance movement routines.
    • Textured neoprene handle helps provide a secure grip.
    • No-roll head helps keep the dumbbell in place between exercises.
    • Other weights from 1 to 20 lb are available in the range.

    Cons:

    • One-pound resistance is too light for many strength-training exercises.
    • Sold as a single dumbbell rather than a pair.
    • Fuchsia finish may not appeal to buyers seeking a neutral look.

    Best for: People doing gentle movement, light arm conditioning, or routines that call for minimal added resistance and an easy-grip coating.

    Not ideal for: Strength trainees who need substantial resistance or anyone wanting a matched pair without buying an additional dumbbell.

    • Weight:1 lb
    • Quantity:1 dumbbell
    • Core:Cast iron
    • Coating and handle:Neoprene
    • Handle diameter:1 in
    • Dimensions:5 × 2 in
    • Color:Fuchsia
    • Features:Non-slip grip, no-roll head, rust resistant
    • Model:INE-001
    Our verdict

    “Choose this single 1 lb Marcy for gentle, low-load routines; choose the 10 lb version or a heavier fixed weight for strength-focused training.”

    → See it on Amazon →

11. BowFlex Results Series SelectTech Adjustable Dumbbell

    

    Best Adjustable Range

    View Latest Price

    For buyers who want one dumbbell to cover several training stages, the BowFlex Results Series SelectTech offers the broadest stated range here: 5 to 52.5 pounds. Its dial system changes resistance without requiring a collection of separate fixed weights, while the included tray gives the dumbbell a designated storage spot. Compared with the Amazon Basics Adjustable Dumbbell, 25 lb, this model reaches more than twice the maximum weight, making it a stronger fit for lifters who expect to progress beyond lighter arm work. The tradeoff is that its 52.5-pound ceiling still limits heavy strength training, and its 16.9-inch length takes up more room than a simple fixed dumbbell. I’d choose it for varied home workouts, not for buyers who need a compact, heavy single weight.

    Pros:

    • Dial adjustment covers 5 to 52.5 pounds in one dumbbell
    • Replaces several separate weights, reducing equipment clutter
    • Non-slip ergonomic handle supports a secure hold
    • Includes a storage tray and a locking system

    Cons:

    • The 52.5-pound maximum may fall short for stronger lifters
    • At 16.9 inches long, it is less compact than a basic fixed-weight dumbbell
    • The adjustment mechanism is more complex than a fixed dumbbell

    Best for: Home lifters who want quick weight changes across a wide range and have room for an adjustable dumbbell and its tray

    Not ideal for: Strength trainees who need more than 52.5 pounds or buyers seeking a compact, fixed dumbbell

    • Weight range:5–52.5 lb
    • Item weight:55 lb
    • Dimensions:16.9 in L × 8.3 in W
    • Handle material:Alloy steel
    • Other materials:ABS, plastic, polypropylene, and rubber
    • Color:Black
    • Special features:Adjustable weight, non-slip handle, locking system, storage tray
    • Model number:BFW0023-OS
    Our verdict

    “Choose the BowFlex if you want one space-saving adjustable dumbbell with more growth room than the 25-pound Amazon Basics model.”

    → See it on Amazon →

12. Amazon Basics Adjustable Dumbbell, 25 lb

    

    Best Value Adjustable Pick

    View Latest Price

    The Amazon Basics Adjustable Dumbbell is a practical middle ground for someone who wants several resistance levels without buying a rack of weights. Its five settings run from 5 to 25 pounds in 5-pound steps, selected by turning the handle; that makes it more versatile than the fixed Marcy Classic Rubber Hex Dumbbell, but less suited to long-term strength progression than the BowFlex SelectTech, which reaches 52.5 pounds. The anti-drop design helps keep the plates secured during use, and a tray is included for storage. The main compromise is the limited range: 25 pounds can be enough for lighter upper-body work, but may quickly feel restrictive for stronger users or lower-body movements. It is also a single dumbbell, so it does not provide a matching pair for two-handed exercises.

    Pros:

    • Five settings from 5 to 25 pounds in one dumbbell
    • Handle-turn adjustment makes changing weights straightforward
    • Anti-drop design helps keep the plates in place
    • Includes a storage tray

    Cons:

    • The 25-pound maximum offers less progression room than the BowFlex SelectTech
    • Only one dumbbell is included
    • Five-pound increments may feel too large for some small progression steps

    Best for: Beginners and casual home exercisers who want several light-to-moderate settings in one adjustable dumbbell

    Not ideal for: Experienced lifters who need heavier resistance or buyers who need a matched pair for bilateral exercises

    • Weight options:5, 10, 15, 20, and 25 lb
    • Number of items:1 dumbbell
    • Item weight:11.34 kg
    • Material:Alloy steel
    • Handle material:Nylon and fiberglass
    • Color:Black
    • Special features:Adjustable weight, anti-drop design, storage tray
    • Model number:ADB-25LB
    Our verdict

    “Pick this model for a single adjustable weight suited to lighter home training, but choose the BowFlex if you need a higher ceiling.”

    → See it on Amazon →

13. Marcy Neoprene Dumbbell Hand Weight, 2 lb, Single

    

    Best for Light Exercise

    View Latest Price

    At just 2 pounds, this Marcy is intended for light movement rather than building substantial strength. Its textured neoprene coating and slip-resistant handle suit controlled exercises such as gentle arm work, while the no-roll head helps keep it from wandering when set down. Compared with the 5-pound Marcy Neoprene Dumbbell elsewhere in this roundup, this version better serves people who need a lighter starting point or a small weight for low-load routines; it will also offer less resistance as strength improves. The single-unit format is useful when only one weight is needed, but buyers planning symmetrical exercises must source a second dumbbell separately. I’d treat it as a purpose-built light hand weight, not as a flexible stand-in for the adjustable models or heavier hex dumbbells.

    Pros:

    • Two-pound load suits light, controlled movements
    • Textured neoprene coating and handle help provide a secure grip
    • No-roll head helps keep it in place when set down
    • Available in multiple weights for choosing a different load

    Cons:

    • The listed unit is only 2 pounds and may be too light for strength work
    • Sold as one dumbbell rather than a pair
    • Offers no adjustment, so a different resistance requires another weight

    Best for: People seeking a very light single weight for gentle arm exercises, low-load routines, or a lighter starting option

    Not ideal for: Lifters seeking progressive strength training or anyone who needs a pair without buying another dumbbell

    • Weight:2 lb
    • Quantity:1 dumbbell
    • Material:Cast iron with neoprene coating
    • Handle material:Neoprene
    • Handle diameter:1 in
    • Dimensions:5.5 × 2.4 in
    • Special features:Non-slip, no-roll head, rust resistant
    • Available weights:1–8 lb, plus 10, 12, 15, and 20 lb
    Our verdict

    “Choose this Marcy for very light single-weight routines, but select the 5-pound version or an adjustable dumbbell if you need more resistance.”

    → See it on Amazon →

14. Marcy Classic Rubber Hex Dumbbell, 5–70 lb, Single

    

    Best Fixed-Weight Progression

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    For buyers who prefer a simple, sturdy fixed weight, the Marcy Classic Rubber Hex Dumbbell pairs a cast-iron core with rubber-covered hex heads and a knurled steel handle. The hex shape helps prevent rolling between sets, while the coating can be gentler on floors and quieter to set down than bare cast iron. Its available weights reach 70 pounds, giving it a much higher ceiling than either the Amazon Basics Adjustable Dumbbell, 25 lb or the BowFlex SelectTech. That range applies across separate weight choices, though—not within one adjustable unit—so changing resistance means owning or buying another dumbbell. It is also sold individually, making a pair a separate purchase. I’d favor this model over an adjustable option when fixed-weight simplicity and heavier loads matter more than compact all-in-one storage.

    Pros:

    • Weight options extend up to 70 pounds
    • Hex heads help prevent rolling when set down
    • Rubber coating helps protect floors and reduce noise
    • Knurled alloy-steel handle supports a secure grip

    Cons:

    • Fixed weight requires another dumbbell to change resistance
    • Sold individually, so a pair requires two units
    • Building a range of weights takes more storage than an adjustable model

    Best for: Lifters who want a fixed dumbbell, a knurled grip, and access to heavier weight options for home strength training

    Not ideal for: Buyers who need quick resistance changes in one unit, want a pair included, or have limited storage for multiple fixed weights

    • Weight options:5, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, and 70 lb
    • Unit count:1
    • Core material:Cast iron
    • Coating:Rubber
    • Handle material:Alloy steel
    • Handle diameter:1.1 in
    • Dimensions:8.9 × 3.1 in
    • Color:Black/Chrome
    • Model:IBRH-005
    Our verdict

    “Choose the Marcy hex dumbbell if you value a fixed, grippy weight and heavier options over the convenience of adjustable resistance.”

    → See it on Amazon →

How We Picked

I compared the 14 listed products around the needs that shape a single-dumbbell purchase: weight range, grip and handling, storage demands, construction style, and workout flexibility. Fixed rubber hex and cast-iron options rank well for straightforward lifting and low-fuss use, while neoprene weights serve lighter workouts. Adjustable models earn their place for buyers who need several loads without storing a full set, but their moving parts and adjustment process make them a different kind of choice.

The ranking favors products with a clear role and useful tradeoffs rather than treating every weight as interchangeable. The Marcy Classic Rubber Hex leads for its wide fixed-weight range; Amazon Basics rubber hex options make sense when a buyer already knows the load they want; and BowFlex stands out for range in a single adjustable unit. Lightweight Marcy Neoprene models rank for targeted light training, not heavy lifting. I also account for the fact that several products are sold individually, so a listing’s unit count and exact weight can change whether it fits a buyer’s plan.

Factors to Consider When Choosing Best Single Dumbbells

Before choosing a dumbbell, decide what job this one weight needs to do. A single fixed dumbbell can be a practical addition to an existing set or a low-clutter tool for a focused routine; it may be limiting if you expect to progress across many exercises. These factors help match the format to your training and avoid buying a weight that is comfortable to hold but quickly outgrown.

Match the Weight to Your Exercises and Progress

One dumbbell can feel very different across exercises: a load suitable for rows may be too heavy for shoulder raises and too light for leg work. Think about the movements you will perform, not just your current ability on one lift. If the weight is meant to support gradual strength gains, a fixed dumbbell may stop being useful once your capacity increases. An adjustable model can cover more stages, though it takes more room and attention to change loads. A common mistake is selecting a weight for the hardest exercise and then finding it awkward for the rest of the routine. When you are unsure, prioritize controlled movement and a load you can handle safely across your intended exercises.

Choose Fixed or Adjustable Around Your Actual Space

Fixed dumbbells are direct: pick up the weight and train, with no adjustment step between sets. That simplicity suits buyers who know the load they need or already own other weights. Adjustable dumbbells can reduce the number of separate weights you store, which matters in a small home workout area, but the unit may be bulkier than a single fixed dumbbell. Adjustment systems also require careful handling and a stable place to set the equipment down. Avoid paying for a broad range if you expect to use only one load. Conversely, if your routine changes weights often, buying several fixed dumbbells one at a time can create more clutter than expected.

Treat Grip and Coating as Practical Features

The handle affects how secure and comfortable a dumbbell feels, especially during longer sets or when your hands get sweaty. Neoprene-coated weights can be appealing for light workouts and comfortable handling, while rubber hex and cast-iron styles suit buyers who want a more traditional strength-training form. Coatings can also affect how the weight feels when set down, but they do not replace a suitable floor or careful placement. Check the handle shape and any grip details shown in the listing rather than assuming all dumbbells feel alike. A weight that is hard to hold can make an otherwise appropriate load frustrating to use. Choose based on both the exercise and the way you prefer to grip the equipment.

Verify Whether the Listing Is for One Weight

In this roundup, several products are explicitly listed as single dumbbells, and that changes how you should plan a purchase. A single unit may be exactly right for unilateral exercises, replacing a lost weight, or adding one load to a home setup. It will not provide a matching pair unless you buy a second unit, and product variations may offer different weights under the same family name. Confirm the selected weight and quantity in the listing before placing an order. Do not assume a photograph showing two dumbbells means two are included. This check can prevent an equipment mismatch and helps you compare fixed options fairly with adjustable ones.

Know When a Lightweight Dumbbell Is the Right Tool

Weights in the 1–5 lb range can serve controlled movements, mobility work, or routines where a lighter load is intentional. They are not simply smaller versions of a general strength-training dumbbell: their usefulness depends on the exercise and training goal. A beginner may find a light weight approachable, but should not assume it will remain challenging as strength improves. For general lifting, think about whether the selected load can support your planned movements over time. If you want one dumbbell for many types of training, a light neoprene model may be too narrow in scope. Buyers focused on lighter, precise work may prefer that limited range over a heavier weight they cannot control comfortably.

Frequently Asked Questions

Should I buy one fixed dumbbell or an adjustable dumbbell?

Choose a fixed dumbbell if you know the weight you need, want a simple pick-up-and-lift setup, or are adding one load to equipment you already own. An adjustable model makes more sense when you need several weights but have limited storage space. It may take longer to change loads, and its mechanism calls for careful handling. Consider how often your routine changes weight between exercises before deciding. If you only plan to use one load, the extra range may not earn its place.

Is a single dumbbell enough for a home workout?

It can support unilateral exercises, single-arm rows, goblet-style movements, and some conditioning routines, depending on the weight and your goals. One dumbbell does not provide a matching pair for exercises that call for two weights at once. You can still train both sides separately, but that may lengthen sessions and make alternating work part of your plan. If your routine depends on paired movements, confirm whether the product is sold individually and budget for a second unit or choose an adjustable option. The right answer depends on your exercise list, not just the equipment format.

How do I pick the right weight if I am new to strength training?

Start with the movements you intend to do and choose a load you can control through the full movement without losing form. A weight that works for a lower-body exercise may be unsuitable for a smaller upper-body movement, so one number may not fit every exercise. The Marcy Neoprene weights in this roundup cover lighter loads, while the fixed rubber hex options address heavier training needs. If you expect to build strength across several movements, an adjustable model can offer room to change loads. When in doubt, seek guidance from a qualified trainer or clinician, especially if you have an injury or health concern.

Are neoprene dumbbells a good choice for strength training?

Neoprene dumbbells can suit lighter routines and movements where a small, manageable load is the goal. In this lineup, Marcy’s 1–10 lb options make that role clear. They are less suited to buyers seeking heavier loads for progressive strength work, where rubber hex or cast-iron models offer a more relevant format. Think about the heaviest exercise you plan to do and whether the weight will stay challenging. Choosing a coating for comfort alone can leave you with a load that does not match your training.

What should I check before ordering a single dumbbell online?

Confirm the selected weight, whether the listing includes one dumbbell or a pair, and whether an adjustable model’s stated range matches your needs. Check the handle and overall form as well, since compactness and grip can affect where and how comfortably you train. For fixed models, make sure the chosen weight is useful for the exercises you plan to perform rather than relying on a product-family name. For adjustable models, review how weights are changed and how the unit should be stored. These checks matter because product variations can appear under a shared listing or product name.

Conclusion

For most buyers seeking a straightforward fixed weight with room to choose a suitable load, I recommend the Marcy Classic Rubber Hex Dumbbell as the best overall. The Amazon Basics Rubber Hex Dumbbell is my best value-style pick for someone who already knows the weight they want and prefers a simple fixed design. For a broad range in one unit, the BowFlex Results Series SelectTech Adjustable Dumbbell is the best premium choice; buyers wanting a lighter starting point can look to the Marcy Neoprene dumbbells as the best option for beginners focused on light training. For specific needs, choose a Marcy Neoprene weight for light, controlled routines or a Marcy Hammertone Cast Iron Hex Dumbbell for a traditional cast-iron option. Before buying any of them, confirm the exact weight and whether the listing includes one dumbbell.