Best Kettlebells · head-to-head

REP Fitness Kettlebell vs Bowflex SelectTech 840 Adjustable Kettlebell

A sourced, side-by-side comparison. REP Fitness Kettlebell is cheaper at $74.99. Every spec and price links to its source.

Which is better: the REP Fitness Kettlebell or Bowflex SelectTech 840 Adjustable Kettlebell?

On the specs we track, they're closely matched. The REP Fitness Kettlebell is the cheaper at $74.99.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec REP Fitness Kettlebell Bowflex SelectTech 840 Adjustable Kettlebell
US price $74.99 $149
BrandREP FitnessBowflex
Released
Weight range (lb) 9-106 8-40
Material cast-iron adjustable
Coating matte-black
Handle diameter (mm) 33
Adjustable No Yes
Weight increment (lb) 4
Competition standard No No
Flat base Yes
Single cast construction Yes No
Warranty years 2

Sources — REP Fitness Kettlebell: repfitness.com (verified 2026-07-13). Bowflex SelectTech 840 Adjustable Kettlebell: bowflex.com (verified 2026-07-13).

What's the difference between the REP Fitness Kettlebell and Bowflex SelectTech 840 Adjustable Kettlebell?

Where the two actually differ on the specs we track (4 of 10). Matching specs are omitted.

  • Weight range (lb): REP Fitness Kettlebell 9-106 vs Bowflex SelectTech 840 Adjustable Kettlebell 8-40
  • Material: REP Fitness Kettlebell cast-iron vs Bowflex SelectTech 840 Adjustable Kettlebell adjustable
  • Adjustable: REP Fitness Kettlebell false vs Bowflex SelectTech 840 Adjustable Kettlebell true
  • Single cast construction: REP Fitness Kettlebell true vs Bowflex SelectTech 840 Adjustable Kettlebell false

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

REP Fitness Kettlebell

Only one whitelisted tester — BarBend — published a hands-on review of the cast-iron REP Fitness Kettlebell (24kg/53lb model, reviewed by Jake Boly, CSCS). BarBend scored it 9.1/10, praising the durable single-cast gravity-cast iron, grippy matte-black finish that held up in swing tests, and the roughly $55 price as one of the cheapest at this weight, while flagging the thicker 39mm handle as a potential turn-off for smaller hands. (1 sourced review, 1 lab-tested.)

Praised: Affordable, around $55 at this weight — one of the cheapest on the market; Durable single-cast gravity-cast iron with rust-resistant matte black finish; Grippy matte texture held up in swing tests both with and without chalk.

Flagged: Thicker 39mm handle may be a turn-off for athletes with smaller hands or grip issues.

Bowflex SelectTech 840 Adjustable Kettlebell

No sourced tester review yet.

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