Best Adjustable Kettlebell 2026: 5 Rack-Replacing Picks

The SelectTech 840 is the most refined adjustable kettlebell design available. A dial on the handle selects your weight in seconds — 8, 12, 20, 25, 35, or 18 kg — with a satisfying click. The handle diameter is close to a standard fixed bell, which matters when you're doing 100-rep swings or Turkish get-ups. The weight increments are well-chosen for beginners and intermediate lifters. The plastic housing is the expected tradeoff, but it holds up well under normal use.

Pros

✓Dial-select changes weight in seconds
✓18 settings from 3.6 to 36 kg
✓Replaces multiple kettlebells in one footprint

Cons

✗Square shape alters swing mechanics slightly
✗Higher upfront cost than fixed bells

Adjustable range	8–40 lb (3.5–18 kg)
Weight increments	8, 12, 20, 25, 35, 40 lb (6 settings, dial)
Dimensions	22.4 × 17.8 × 31.8 cm (8.8 × 7 × 12.5 in)
Warranty	2 years

#2Best for Space Efficiency

PowerBlock Pro Adjustable Kettlebell

$199.00Reference price

PowerBlock's block-style design is polarizing: the square, perforated frame doesn't look like a traditional kettlebell, and swings feel slightly different because the weight distribution is centered differently. But if space efficiency is the priority, it wins — the square base doesn't roll, stores flat, and the adjustment mechanism is fast. Adjusts from 3.5 to 16 kg across several weight increments. Used heavily in commercial gym settings for group fitness.

Pros

✓Smallest footprint per kilogram of any adjustable
✓Fast weight adjustment mechanism
✓Compatible with PowerBlock dumbbell ecosystem

Cons

✗Square frame is far from traditional kettlebell shape
✗Handle feel differs from cast iron

Adjustable range	18–35 lb (Light) or 35–62 lb (Heavy)
Weight increments	18, 22, 26, 35 lb (Light); 35, 44, 53, 62 lb (Heavy); magnetic pin
Handle diameter	32 mm
Material	Steel plates in steel shell
Dimensions	8 × 5.5 × 10 in (Light); 8 × 5.5 × 11.25 in (Heavy)
Warranty	5 years

#3Best Traditional Feel

REP Fitness Adjustable Kettlebell

$159.99Reference price

REP's adjustable kettlebell is the closest to a fixed cast-iron bell of any option in this category. The round shape, standard handle width, and weight-at-the-bottom design means swings, cleans, and snatches feel natural. Weight changes require removing the bottom section and swapping weights — slower than a dial but more mechanically reliable. Goes up to 32 kg, which makes it useful well into advanced programming.

Pros

✓Round shape closest to fixed cast iron
✓Standard knurling on the handle
✓Good balance for ballistic movements

Cons

✗Fewer weight increments than Bowflex
✗Larger footprint than block-style designs

Adjustable range	8–16 kg / 16–24 kg / 20–40 lb (3 SKUs)
Weight increments	5 settings per SKU (e.g. 20, 25, 30, 35, 40 lb)
Handle diameter	34.6 mm (kg models) / 35 mm (lb model)
Material	Powder-coated steel with rubber base

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B+

#4Best Budget Option

Apex Adjustable Kettle Ball

$59.99Reference price

The Apex is plate-loaded — it uses standard Olympic weight plates that you likely already own, which keeps the cost low if you have a barbell setup. The handle is solid, the locking mechanism is reliable, and at 9–23 kg it covers the range most people actually use. The tradeoff is weight changes take longer (unscrew, swap plates, rescrew), making it impractical for quick circuit training. Strong value for steady-state programming.

Pros

✓Uses standard plates you may already own
✓Lowest cost of any adjustable option
✓No upper weight ceiling with plate additions

Cons

✗Plate-loading takes 2–3 minutes to change
✗Balance differs from fixed kettlebells

Adjustable range	20–50 lb
Weight increments	Uses standard 2.5/5/10 lb plates (sold separately); ships with 15 lb handle, 5 lb base, 4 spacer disks
Material	Powder-coated cast iron
Dimensions	9 × 6 × 10 in
Warranty	2 years (limited)

B+

#5Best Travel Option

Kettle Gryp Adjustable Kettlebell

$34.95Reference price

Kettle Gryp isn't a kettlebell at all — it's a clamp that converts any dumbbell into a kettlebell grip. At under $40 and 0.5 kg, it's the travel solution for people who work out in hotel gyms or have a dumbbell set they don't want to duplicate. The grip works on dumbbells from 7 to 25 kg. The leverage point feels slightly different from a true kettlebell, but for swings and goblet squats it functions well enough.

Pros

✓Converts any dumbbell — under $40
✓Fits in a gym bag or suitcase
✓Works with hotel gym equipment

Cons

✗Requires access to a dumbbell
✗Balance differs from a real kettlebell

Adjustable range	Accepts dumbbells up to 55 lb
Handle diameter	1.15 in (grip thickness); fits handles under 1.5 in
Material	Impact-resistant ABS plastic, molded urethane foam, stainless steel hardware
Dimensions	Handle grip 8.13 in long; clamp 4.5 in long × 1.5 in dia.

Which one is right for you?

For home gym lifters who want one bell

Bowflex SelectTech 840 Kettlebell

Dial-select replaces a rack of fixed bells from 3.6 to 36 kg without the assembly time that kills supersets.

For small spaces and apartment gyms

PowerBlock Pro Adjustable Kettlebell

The square frame stores flat and won't roll, so it fits beside a desk or under a bench without dedicated kettlebell storage.

For ballistic kettlebell purists

REP Fitness Adjustable Kettlebell

The round shape and standard handle width keep swings, cleans, and snatches feeling like a fixed cast-iron bell.

For lifters who already own plates

Apex Adjustable Kettle Ball

Plate-loaded design uses your existing Olympic plates, making it the cheapest path to a heavy kettlebell with no upper ceiling.