Adjustable bells trade a little of the fixed-bell feel for a lot of saved space. The mechanism decides whether that trade is worth it.
The Best Adjustable Kettlebells
Adjustable kettlebells compared on mechanism, weight range, handle feel, and space.
Our top picks at a glance
Best dial adjustable
Bowflex SelectTech 840 Adjustable KettlebellSmall spaces and households sharing one bell, where six fixed weights would eat the room.
Best steel adjustable
REP Fitness Adjustable Kettlebell, 16 kgLifters who want adjustable weight with a steel handle and iron plates, rather than a dial mechanism.
Best iron plate adjustable
Titan Fitness Adjustable Kettlebell, 10-40 lbGarage gyms and small spaces where an iron-feeling adjustable bell must cover 10 to 40 lb.
Buy the Bowflex 840 for fast dial changes and small spaces. Buy the REP or Titan plate-loaded bells if you want an iron feel and do not mind slower changes. Buy fixed bells instead if you drop bells or train heavy sport work.
The picks, ranked
| Pick | Weight range | Replaces | Handle | Buy |
|---|---|---|---|---|
| Best dial adjustableBowflex SelectTech 840 Adjustable Kettlebell | 8 to 40 lb by dial (8, 12, 20, 25, 35, 40 lb) | 6 fixed kettlebells | 28mm diameter | Check price |
| Best steel adjustableREP Fitness Adjustable Kettlebell, 16 kg | - | - | Ergonomic handle, 3.15-inch listed diameter | Check price |
| Best iron plate adjustableTitan Fitness Adjustable Kettlebell, 10-40 lb | 10 to 40 lb | - | Extra-wide, smooth 28mm grip | Check price |
 Best fixed alternativeYes4All Vinyl Coated Kettlebell | 5 to 100 lb across the range | - | Wide handle for two-handed swings | Check price |
 Best fixed benchmarkCAP Barbell Cast Iron Kettlebell, 35 lb | - | - | - | Check price |
Best dial adjustable
Bowflex SelectTech 840 Adjustable Kettlebell
Six kettlebells in one dial: 8 to 40 lb in seconds, for flats and small home gyms.
Strengths
- Dial adjustment covers 8, 12, 20, 25, 35, and 40 lb in one unit, so warm-ups, technique work, and heavy swings all come from a single footprint.
- Weight changes take seconds by turning the dial, which suits circuit training and households where two people train at different weights.
- Composite shell and compact 8.8 by 7 by 12.5 inch body store on a shelf, and the 28mm handle suits a wide range of hand sizes.
Limitations
- Dial mechanism and composite shell do not suit dropping, so it must be set down with care, unlike a solid iron bell.
- Maximum weight of 40 lb limits strong lifters, who will outgrow it for heavy swings and need a fixed bell as well.
- Balance and handle feel differ from a traditional bell, which matters for high-rep snatch and clean technique.
What owners report
Commonly praised
- One dial replaces six bells and saves a whole rack of space
- Weight changes take seconds, which suits circuits and shared use
- Compact body stores on a shelf rather than taking floor space
Common complaints
- Must be set down with care, as the dial mechanism cannot be dropped
- 40 lb ceiling limits strong lifters for heavy swings
- Balance and feel differ from a traditional iron bell
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Weight range | 8 to 40 lb by dial (8, 12, 20, 25, 35, 40 lb) |
|---|---|
| Replaces | 6 fixed kettlebells |
| Handle | 28mm diameter |
| Dimensions | 8.8 x 7 x 12.5 inches |
| Warranty | 2-year manufacturer warranty |
Best for: Small spaces and households sharing one bell, where six fixed weights would eat the room.
Skip if: You drop bells, train heavy competition-style work, or want a traditional iron feel and handle.
Best steel adjustable
REP Fitness Adjustable Kettlebell, 16 kg
A plate-loaded adjustable bell with a proper steel handle, for lifters who want iron feel and flexibility.
Strengths
- Alloy steel construction with iron plates gives a dense, iron-like feel that dial-adjustable composite bells cannot match.
- Plate loading lets weight change in plates rather than whole-bell swaps, so one bell covers warm-ups through working sets.
- Ergonomic handle with a 3.15-inch listed handle diameter suits two-handed swings and goblet work.
Limitations
- Weight changes need plates added or removed, so mid-circuit changes are slower than turning a dial.
- Loose plates need storage, and the bell is bulkier than a fixed bell of the same weight.
- Top weight in the adjustable family is limited, so very strong lifters still need a heavy fixed bell for swings.
What owners report
Commonly praised
- Steel handle and iron plates give a proper iron feel
- Plate loading covers warm-ups through working sets in one bell
- Ergonomic handle suits two-handed swings and goblet work
Common complaints
- Plate changes are slower than a dial turn mid-circuit
- Loose plates need their own storage spot
- Top weight in the range still leaves heavy swingers wanting more
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Construction | Alloy steel with iron plates |
|---|---|
| Model weight | 16 kg |
| Adjustability | Plate-loaded variable weight |
| Handle | Ergonomic handle, 3.15-inch listed diameter |
| Use | Swings, squats, presses, carries |
Best for: Lifters who want adjustable weight with a steel handle and iron plates, rather than a dial mechanism.
Skip if: You want instant dial changes mid-circuit, or you need weights above the adjustable range.
Best iron plate adjustable
Titan Fitness Adjustable Kettlebell, 10-40 lb
Six cast-iron plates on one core: a compact adjustable bell that still feels like iron.
Strengths
- Six drop cast-iron plates on a 10 lb core give real iron weight and balance, unlike composite dial bells.
- Numbered plates make weight changes clear, and the flat base sits stably on the floor between sets.
- Extra-wide handle with a smooth 28mm grip suits two-handed swings and goblet holds.
Limitations
- Plate changes take longer than a dial turn, so mid-circuit weight changes interrupt flow.
- Top weight of 40 lb limits strong lifters for heavy swings, who will need a fixed bell as well.
- Plates add bulk, so the bell is larger than a fixed bell of the same weight.
What owners report
Commonly praised
- Cast-iron plates give real iron weight and balance
- Numbered plates make weight changes clear and simple
- Flat base sits stably on the floor between sets
Common complaints
- Plate changes take longer than turning a dial
- 40 lb top weight limits strong lifters for heavy swings
- Plates add bulk next to a fixed bell of the same weight
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Weight range | 10 to 40 lb |
|---|---|
| Plates | 6 drop cast-iron plates, numbered 1 to 6 |
| Core | 10 lb core |
| Handle | Extra-wide, smooth 28mm grip |
| Base | Flat base for stable storage |
Best for: Garage gyms and small spaces where an iron-feeling adjustable bell must cover 10 to 40 lb.
Skip if: You want instant dial changes, or you need weights above 40 lb for heavy swings.
Best fixed alternative
Yes4All Vinyl Coated Kettlebell
The value vinyl bell: solid cast iron inside, floor-friendly coating outside, in weights from 5 to 100 lb.
Strengths
- Solid cast iron core gives the dense, balanced feel of a proper bell, while the vinyl coating protects floors and dampens noise on hard surfaces.
- Wide handle suits two-handed swings comfortably, and the range from 5 to 100 lb means beginners and strong lifters can both find a weight.
- Pricing sits at the value end of the market, so building a small set of two or three bells stays affordable.
Limitations
- Vinyl coating can feel slightly slick with sweaty hands compared with a chalked bare iron handle, and it can scuff over years of hard use.
- Coating thickness varies slightly by weight, so the bell's dimensions differ across the range rather than staying uniform.
- No competition-standard sizing, so technique built on this bell does not transfer exactly to a steel competition bell.
What owners report
Commonly praised
- Vinyl coating is kind to wood and laminate floors
- Value pricing makes building a small set affordable
- Wide handle feels comfortable for two-handed swings
Common complaints
- Grip turns slick once hands get sweaty on long sets
- Dimensions change across weights rather than staying uniform
- Not a competition-standard bell, so technique does not transfer exactly
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Construction | Solid cast iron core, vinyl coating |
|---|---|
| Weight range | 5 to 100 lb across the range |
| Handle | Wide handle for two-handed swings |
| Floor protection | Vinyl coating guards hard floors |
| Use | Swings, squats, presses, carries |
Best for: Home gyms on hard floors where one affordable bell must cover swings, squats, and presses without marking the floor.
Skip if: You train high-rep competition-style work and want a bare steel handle, or you need a single bell above 100 lb.
Best fixed benchmark
CAP Barbell Cast Iron Kettlebell, 35 lb
The classic single bell: plain cast iron, a 35 lb working weight, and nothing to break.
Strengths
- Single-piece cast iron construction is effectively indestructible in home use, with no coating to chip and no moving parts.
- The 35 lb weight is a versatile working weight for swings, goblet squats, and presses for many lifters.
- Bare iron handle takes chalk well, giving a secure grip for high-rep sets and heavy swings.
Limitations
- Bare iron can mark floors and is noisy if set down hard, so a mat is sensible on hard surfaces.
- Fixed weight means progress needs another bell, so a set costs more and takes more space than an adjustable model.
- Handle diameter of 1.61 inches suits most hands but may feel thick for smaller hands on long sets.
What owners report
Commonly praised
- Single-piece iron feels indestructible in daily home use
- Bare handle takes chalk well for secure high-rep grip
- 35 lb weight covers swings, squats, and presses for many lifters
Common complaints
- Bare iron marks floors and clanks loudly if set down hard
- Fixed weight means progress needs another bell and more space
- Handle feels thick for smaller hands on longer sessions
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
| Construction | Single-piece cast iron |
|---|---|
| Weight | 35 lb |
| Handle diameter | 1.61 inches |
| Finish | Powder-coat style iron finish |
| Use | Swings, squats, presses, Turkish get-ups |
Best for: Lifters who want a traditional bare-iron bell for swings and grinds, with chalk-friendly grip.
Skip if: You train on hard floors you must protect, or you want an adjustable bell that covers several weights.
Questions, answered
Can adjustable kettlebells be dropped?
Dial models should not be dropped, since the mechanism can be damaged. Plate-loaded iron models tolerate more abuse but still deserve a mat and a controlled set-down.
How fast can I change weight on an adjustable bell?
A dial change takes seconds. A plate change takes a minute or so, since plates must be added or removed and secured. Circuits favour dials; strength sessions suit plates.
Do adjustable bells feel different from fixed bells?
Yes, slightly. Dial bells feel bulkier and less dense, while plate bells feel closer to iron. Both train the same movements well for general strength and conditioning.