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CAP Barbell Cast Iron Kettlebell vs REP Fitness Adjustable Kettlebell

The Adjustable Kettlebell is the better buy for most home gyms. One bell covers five weight settings, so it replaces a rack of fixed kettlebells and grows with you as you get stronger. The CAP Cast Iron is a solid, simple fixed bell with a wide handle and a flat base, and owners rate it well, but a single 10 lb weight is a starting point, not a full training tool. Reviewers of the adjustable model praise the quick twist mechanism, the comfortable grip and the competition-style shape, while some note occasional sticking and light clanking between plates.

  • Choose the CAP Cast Iron Kettlebell if you want one dependable fixed weight for a single lift or a starter bell and prefer no moving parts.
  • Choose the Adjustable Kettlebell if you want one bell that covers several weights and saves floor space.

Prices

  • CAP Barbell Cast Iron Kettlebell: $16.97 at Walmart (last seen Nov 6)
  • REP Fitness Adjustable Kettlebell: $119.99 at Best Buy (checked today)
  • Difference: the CAP Barbell Cast Iron Kettlebell is $103.02 cheaper than the REP Fitness Adjustable Kettlebell at the latest prices (Nov 6 and Nov 10)
CAP
CAP Barbell Cast Iron Kettlebell

CAP Barbell Cast Iron Kettlebell

4.6(2,176 ratings)
$16.97at WalmartChecked Nov 6
See all prices and details
Visit Walmart
Pros
  • Solid cast iron, very durable
  • Wide handle opening fits most hands
  • Flat base sits stable on the floor
  • Simple, nothing to adjust or break
Cons
  • Only one weight; you need more bells to progress
  • Enamel paint can chip with drops
  • No rubber base to protect floors
A
Adjustable Kettlebell

REP Fitness Adjustable Kettlebell

Adjustable Kettlebell

4.9(752 ratings)
$119.99at Best BuyChecked 2 h ago
See all prices and details
Visit Best Buy
Pros
  • Five weight settings in one bell
  • Saves space versus a set of fixed bells
  • Quick push-and-twist adjustment
  • Competition shape and matte grip feel like a standard bell
  • Rubber bottom protects floors
Cons
  • Plates can stick when misaligned
  • Light clanking with only a couple of plates in
  • Plastic fasteners raise long-term durability questions
  • Weight markers hard to read in low light

What separates them

CAP Barbell Cast Iron KettlebellREP Fitness Adjustable Kettlebell
Weight rangeSingle fixed 10 lb bellFive settings from 8 to 16 kg
FootprintOne bell per weight, so a full set takes a rackOne bell replaces a set
BuildSolid cast iron with enamel coating, no moving partsPlates held by internal nylon thermoplastic fasteners
GripWide handle opening with comfort gripMatte powder-coated handle, competition-style
Weight changesNone; swap to another bellPush down and twist to change plates
Floor protectionFlat cast iron baseRubber bottom
Noise and rattleNoneSome clanking with few plates; occasional sticking
LongevityCast iron lasts for decadesPlastic fasteners draw durability concerns

Price history

$119.99$16.97
Nov 6Nov 10
  • CAP Barbell Cast Iron Kettlebell: lowest $16.97 on Nov 6 at Walmart.
  • REP Fitness Adjustable Kettlebell: lowest $59.99 on Nov 9 at DICK'S Sporting Goods; $119.99 on Nov 10.

Prices at every store

CAP Barbell Cast Iron Kettlebell

  • WalmartNew

    In stock

    $16.97+ $5.99 shippingChecked Nov 9
    Visit Walmart
  • WalmartNew

    Availability unknown

    $16.97Checked Nov 6
    Visit Walmart
  • playitagainsports.comNew

    Availability unknown

    $19.99Checked Nov 6
    Visit playitagainsports.com
  • Academy Sports + OutdoorsNew

    Availability unknown

    $19.99Checked Nov 6
    Visit Academy Sports + Outdoors
All 6 stores and price history →

REP Fitness Adjustable Kettlebell

  • TargetNew

    In stock

    $119.99Free shippingChecked 2 h ago
    Visit Target
  • Best BuyNew

    In stock

    $119.99Free shippingChecked 2 h ago
    Visit Best Buy
  • Macy'sNew

    In stock

    $119.99Free shippingChecked 2 h ago
    Visit Macy's
  • Academy Sports + OutdoorsNew

    In stock

    $149.99+ $24.70 shippingChecked 2 h ago
    Visit Academy Sports + Outdoors

Also available at

  • eBayCheck price at eBay
  • LifeProCheck price at LifePro
  • SearsCheck price at Sears

Store links may earn us a commission.

All 4 stores and price history →

Specs compared

SpecCAP Barbell Cast Iron KettlebellREP Fitness Adjustable Kettlebell
BottomFlat bottomrubber bottom
size10 lbs—
colorGray—
Weight10 lb—
MaterialCast Iron—
FinishEnamel coating—
FeaturesComfort Grip—
Fitness goalBuild Muscle—
Weight range10lb—
Handle openinggenerous wide opening handle—
Coatingindustrial enamel paint—
Model numberSDK2G-010AZ—
Show all 19 specsShow fewer specs
SpecCAP Barbell Cast Iron KettlebellREP Fitness Adjustable Kettlebell
Weight (lb)10.0—
Weight settings—8, 10, 12, 14, and 16kg
Weight options—kilogram or pounds
Grip surface—Matte powder coated
Shape—Competition-style
Weight settings count—five different weight settings
Fastener material—internal nylon thermoplastic fastener

What reviewers say

CAP Barbell Cast Iron Kettlebell

  • 4.6 / 52,176 ratings

Owners rate the CAP kettlebell well overall, with 4.6 out of 5 from 2,176 ratings. Most praise the solid build and value, while a minority mention coating chips and rough handle seams.

What people mention
  • Build qualityPraisedOwners describe the bell as solid cast iron that handles regular use without loosening or cracking.
  • HandleMixedThe wide opening suits two-hand grips, but some find the seam rough on the palms.
  • CoatingMixedThe enamel resists rust, though several owners report chips near the handle.
  • ValuePraisedBuyers see it as a cheap way to add a kettlebell to a home gym.

REP Fitness Adjustable Kettlebell

  • 4.9 / 5752 ratings

Owners rate it very highly and mostly praise the space savings, the fast adjustment and the comfortable grip. Complaints center on plates sticking when misaligned, some clanking at light settings and doubts about the plastic parts over time.

What people mention
  • AdjustmentPraisedOwners find the push-and-twist mechanism fast and easy to use between sets.
  • Space savingPraisedBuyers say one bell covers what several fixed kettlebells used to take up.
  • GripPraisedThe matte powder coat is described as comfortable and nonslip during swings and presses.
  • Plate stickingCriticised

Questions and answers

Which is better for a beginner?
The adjustable bell. You can start light and move up without buying new bells, while the CAP 10 lb is quickly outgrown.
Which lasts longer?
The CAP cast iron. It has no moving parts, while the adjustable model relies on nylon thermoplastic fasteners that some owners worry will wear.
Is the adjustable kettlebell worth stepping up to?
Yes for most home lifters. It costs more than one fixed bell but replaces several, and buyers rate it highly for space and versatility.
Does the adjustable bell feel like a normal kettlebell?
Buyers say yes. The competition-style shape and matte grip keep lifts consistent, though there is some clanking with few plates loaded.
Can I do swings with the adjustable kettlebell?
Yes. The fasteners hold plates in place, but check them before fast swings, and expect a little noise.
Which is better for a small apartment?
The adjustable. One bell covers five weights and has a rubber bottom that protects floors.

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More comparisons

  • Adjustable Competition Kettlebell vs CAP Barbell Cast Iron Kettlebell
  • Adjustable Competition Kettlebell vs Adjustable Kettlebell
  • Kettlebells (lb) vs CAP Barbell Cast Iron Kettlebell
  • Titan Fitness Cast Iron Kettlebell vs CAP Barbell Cast Iron Kettlebell
  • Kettlebells (lb) vs Adjustable Kettlebell

Buying guides that pick them

  • Best kettlebells for home workouts
Some owners report plates catching when they aren't seated squarely before twisting.