Head-to-head · Best Adjustable Kettlebells

Bells of Steel Adjustable Kettlebell vs REP Fitness Adjustable Kettlebell

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

REP Fitness Adjustable Kettlebell comes out ahead by a narrow margin (4.5 vs 4.6). The gap is mostly about intermediate-to-advanced kettlebell users who want competition-shaped swings and cleans without sacrificing space for a full set — read the strengths below before deciding.

Ranked #3 in Best Adjustable Kettlebells

Bells of Steel Adjustable Kettlebell

4.5

$210as of May 19

The Bells of Steel Adjustable Kettlebell is the competition-style pick — IKFF-compliant 35 mm handle, steel shell, and 41 weight settings from 12 to 32 kg with 0.5 kg micro-loading. For lifters who are serious about kettlebell sport or who progress past the 40-lb ceiling that most adjustables top out at, this is the bell that scales with you. The trade-offs are price and adjustment speed; everything else is a clear upgrade over the budget tiers.

Strengths

— Full 12-32 kg range (about 26-70 lb) — widest in this round-up
— 0.5 kg micro-loading — 41 possible weight settings
— Steel shell with iron plates — competition feel, no rattling

Watch-outs

— Most expensive pick here at $280
— Heavier than the Bowflex SelectTech 840 or PowerBlock at all weight levels
— Adjustment is slower than the Bowflex SelectTech 840's dial

$210 · Check Price on Amazon Full review →

Higher ratedRanked #1 in Best Adjustable Kettlebells

REP Fitness Adjustable Kettlebell

4.6

$220as of May 19

The REP Fitness Adjustable is the most refined adjustable kettlebell in this round-up — cast-iron internal plates with proper thermoplastic locking means it feels like a real kettlebell, not a plastic shell with weights inside. Garage Gym Lab and BarBend both rank it the best overall adjustable for 2026. The catch is you commit to one weight range (most users pick the 16 kg bell which adjusts 8-16 kg). For users who want adjustable-kettlebell convenience without sacrificing the swing/clean/snatch feel, this is the pick.

Strengths

— Cast-iron internal plates with nylon thermoplastic fasteners — no plastic shell rattle
— Push-and-twist adjustment is faster than dial-based competitors
— Competition-style shape keeps swing/clean/snatch feel consistent across weights

Watch-outs

— Single size range — pick 8-16 kg, 16-24 kg, or 20-40 lb; no all-in-one bell
— 5 increments per range is fewer than the Bowflex SelectTech 840's 6
— Pricier than the Yes4All or Bowflex SelectTech at MSRP

$220 · Check Price on Amazon Full review →

How they stack up

Bells of Steel Adjustable Kettlebell

Widest weight range and finest increments of any pick here — beats the REP Fitness on range and the Bowflex SelectTech 840 on ceiling (32 kg vs 18 kg). Loses to the Bowflex SelectTech 840 on adjustment speed. Steel-and-iron build is more durable than the Bowflex SelectTech 840's plastic but heavier to handle than the Yes4All.

REP Fitness Adjustable Kettlebell

Most refined feel of the picks here — beats the Bowflex SelectTech 840 and PowerBlock on swing dynamics due to the competition-style shape. Loses to the Bowflex SelectTech 840 on quick-change convenience and to the Yes4All on price. Single-range design means you may eventually want a second bell for a different weight bracket.

Specs side-by-side

Spec	Bells of Steel Adjustable Kettlebell	REP Fitness Adjustable Kettlebell
Weight Range	12-32 kg (about 26-70 lb)	16 kg bell adjusts 8/10/12/14/16 kg
Weight Settings	41 (0.5 kg micro-load, with expansion pack)	5 settings (8/10/12/14/16 kg)
Adjustment	Internal locking system	Push-and-twist internal fasteners
Material	Steel shell, iron plates	Cast iron internal plates, steel shell
Handle	35 mm competition-standard	35 mm competition-standard
Dimensions	8.25 in x 11 in	—
Other Sizes	—	24 kg (16-24 kg) and 40 lb (20-40 lb) options

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