Head-to-head · Best Adjustable Kettlebells

Bells of Steel Competition Adjustable Kettlebells vs CAP Barbell 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

Bells of Steel Competition Adjustable Kettlebells comes out ahead by a clear margin (4.5 vs 4.0). The gap is mostly about serious home trainers who value compact equipment — read the strengths below before deciding.

Higher ratedRanked #2 in Best Adjustable Kettlebells

Bells of Steel Competition Adjustable Kettlebells

4.5

$210as of May 28

The Bells of Steel Adjustable Competition Kettlebell offers a space-efficient solution for home gym users seeking versatile weight training. Reviewers praised its durable steel construction and simple adjustment mechanism using included tools. The kettlebell accommodates weight progression from 12kg to 32kg through interchangeable iron plates, making it suitable for various exercises like swings, squats, and snatches. While the adjustment process is straightforward, it does require physical tools and time. This makes it ideal for serious home trainers who value compact equipment but may not suit those preferring quick weight changes during workouts.

Strengths

— Space-saving design allows for multiple weight adjustments in one kettlebell
— Durable construction with powder-coated steel body and iron weight plates
— Simple weight adjustment process using included Allen key and wrench

Watch-outs

— Weight adjustment requires physical tools and takes a few minutes per change
— Limited color options for the main body (black, blue, purple, yellow)

$210 · Check Price on Amazon Full review →

Ranked #3 in Best Adjustable Kettlebells

CAP Barbell kettlebell

4.0

$49.94as of Jun 7

CAP Barbell kettlebells offer an affordable entry point for kettlebell training, with cast iron construction and powdercoated finishes. Reviewers noted that while the price is attractive, some units have rough handles that require sanding or filing to smooth. Users who purchased 20kg and 45lb models reported initial handle imperfections but found them manageable with basic tools. The product is recommended for budget-conscious trainees willing to address minor quality issues, though more experienced users may prefer higher-end options.

Strengths

— Affordable price point
— Cast iron construction
— Powdercoated finish available

Watch-outs

— Rough handle texture requires sanding
— Quality control issues noted in some units

$49.94 · Check Price on Amazon Full review →

How they stack up

Bells of Steel Competition Adjustable Kettlebells

Unlike the REP Adjustable Kettlebells, which use a fast dial system, the Bells of Steel requires physical tools for adjustments but offers a more traditional feel with its interchangeable iron plates. While the budget direct-from-brand kettlebells provides a single-pour cast iron construction, the Bells of Steel's powder-coated steel body and iron plates offer a different balance of durability and adjustability. Compared to the Metrixx Elite, which is sold exclusively online and costs more, the Bells of Steel is more accessible and offers a wider range of weights from 12kg to 32kg.

CAP Barbell kettlebell

The CAP Barbell kettlebell is more affordable than other picks here, which offers superior stability with flat machined bases and a textured powder coating. Unlike the Metrixx Elite, which uses a single-mold casting process for precision, the CAP Barbell kettlebell has rough handles that require sanding. Compared to the REP Adjustable Kettlebells, the CAP Barbell lacks the convenience of a fast adjustment mechanism, though it does offer a good value for beginners.

Specs side-by-side

Spec	Bells of Steel Competition Adjustable Kettlebells	CAP Barbell kettlebell
Weight Range	12-32 kg	16kg
Minimum Weight	12kg	10 lb
Maximum Weight	32kg	80 lb
Weight Increment	0.5kg	5 lb up to 50 lb, then 10 lb up to 80 lb
Handle Diameter	35mm	—
Material	Steel	Cast iron
Adjustment Type	Plate-loaded	Fixed

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