A full set of kettlebells takes up a lot of space and money. An adjustable kettlebell gives you several weights in one bell, so you can swing light, goblet squat heavier and press in between without a rack of bells.
We compared adjustable kettlebells on weight range, adjustment method, build materials and owner feedback. See how we review, and if you prefer dumbbells, our best adjustable dumbbells guide.
Top 3 Best Adjustable Kettlebells at a Glance
BowFlex SelectTech 840 Adjustable Kettlebell
- 8–40 lb in 6 settings (8, 12, 20, 25, 35, 40 lb)
- Turn-of-a-dial adjustment
- Replaces up to 6 kettlebells
- Works with JRNY app (trial included)
REP Fitness Adjustable Kettlebell
- Push-down-and-twist weight selection
- Matte powder-coated finish
- Internal nylon weight retainers
- Several size options available
Yes4All Adjustable Kettlebell (40 lb)
- Up to 40 lb with 6 cast iron plates
- Lock-and-slide plate mechanism
- Flat base for upright storage
- Textured non-slip handle
Best Adjustable Kettlebells in 2026
| Kettlebell | Best For | Key Specs | Amazon Rating | Price |
|---|---|---|---|---|
| 1. BowFlex SelectTech 840 Adjustable Kettlebell | Best Overall | 8–40 lb in 6 settings (8, 12, 20, 25, 35, 40 lb); Turn-of-a-dial adjustment; Replaces up to 6 kettlebells | 4.8/5 | Check Price |
| 2. REP Fitness Adjustable Kettlebell | Best Premium Quick Adjust | Push-down-and-twist weight selection; Matte powder-coated finish; Internal nylon weight retainers | 4.6/5 | Check Price |
| 3. Yes4All Adjustable Kettlebell (40 lb) | Best Cast Iron Value | Up to 40 lb with 6 cast iron plates; Lock-and-slide plate mechanism; Flat base for upright storage | 4.6/5 | Check Price |
| 4. Polyfit Adjustable Kettlebell (5-in-1) | Best Cast Iron Up to 50 lb | 30, 40 or 50 lb versions; 10 lb minimum, 5 settings; Solid cast iron, matte coating | 4.9/5 | Check Price |
| 5. Bells of Steel Adjustable Competition Kettlebell (12–32 kg) | Best Competition-Style Kettlebell | 12 to 32 kg in 0.5 kg steps; 41 weight settings; Competition shape, 35 mm handle | 4.7/5 | Check Price |
| 6. XRT65 Adjustable Kettlebell (7.8–40 lb) | Best Dial Alternative | 7.8 to 40 lb; Quick dial changes; Iron handle, color-coded plates | 4.5/5 | Check Price |
| 7. Apex Adjustable Kettlebell Handle (20–50 lb) | Best Budget Plate-Loaded | 20 lb base, loads to 50 lb; Uses standard 1-inch plates; Cast iron with powder coat | 4.4/5 | Check Price |
| 8. VEVOR Adjustable Kettlebell (5–44 lb) | Best Wide Range on a Budget | 7 levels: 5, 11.5, 18, 24.5, 31, 37.5, 44 lb; Die-cast aluminum handle; ABS shock-absorbing body | 4.2/5 | Check Price |
1. BowFlex SelectTech 840 Adjustable Kettlebell – Best Overall
- 8–40 lb in 6 settings (8, 12, 20, 25, 35, 40 lb)
- Turn-of-a-dial adjustment
- Replaces up to 6 kettlebells
- Works with JRNY app (trial included)
Pros
- ✓ Very fast dial changes
- ✓ Huge owner base with strong ratings
- ✓ Compact replacement for a full set
Cons
- ✗ Larger and boxier than a cast iron bell
- ✗ Not built for being dropped
BowFlex’s SelectTech 840 is the most popular adjustable kettlebell on Amazon, with thousands of strong ratings. Turn the dial to choose 8, 12, 20, 25, 35 or 40 lb, and it replaces six separate bells.
The weight changes in seconds, which is ideal for workouts that move from light presses to heavy swings. The shape is bulkier than a cast iron bell, but the convenience is hard to beat.
Best for: Most home users who want one bell for every exercise.
May not fit: Anyone who wants a classic cast iron feel.
2. REP Fitness Adjustable Kettlebell – Best Premium Quick Adjust
- Push-down-and-twist weight selection
- Matte powder-coated finish
- Internal nylon weight retainers
- Several size options available
Pros
- ✓ Quick push-and-twist adjustment
- ✓ Grippy matte finish
- ✓ From a respected equipment brand
Cons
- ✗ Pricier than budget bells
- ✗ Range depends on the size you buy
REP Fitness’s adjustable kettlebell changes weight by pushing down and twisting the handle. REP says it is one of the fastest-adjusting kettlebells available.
The matte powder-coated surface is less slippery than glossy finishes, and internal nylon retainers keep the plates from rattling.
Best for: Lifters who want speed and a grippy, durable bell.
May not fit: Shoppers on a tight budget.
3. Yes4All Adjustable Kettlebell (40 lb) – Best Cast Iron Value
- Up to 40 lb with 6 cast iron plates
- Lock-and-slide plate mechanism
- Flat base for upright storage
- Textured non-slip handle
Pros
- ✓ Solid cast iron construction
- ✓ Feels like a traditional kettlebell
- ✓ Good value for 40 lb
Cons
- ✗ Slower to change than dial bells
- ✗ Plates must be swapped by hand
Yes4All’s adjustable kettlebell uses six cast iron plates to reach 40 lb. A lock-and-slide mechanism changes plates in seconds, and the flat base keeps it upright for renegade rows.
Because it is cast iron, it feels much closer to a traditional kettlebell than plastic-shell designs.
Best for: Budget buyers who want a real cast iron feel.
May not fit: People who want dial-speed changes.
4. Polyfit Adjustable Kettlebell (5-in-1) – Best Cast Iron Up to 50 lb
- 30, 40 or 50 lb versions
- 10 lb minimum, 5 settings
- Solid cast iron, matte coating
- Non-slip finish
Pros
- ✓ Cast iron feel and durability
- ✓ Up to 50 lb option
- ✓ Excellent early ratings
Cons
- ✗ Fewer reviews so far
- ✗ Changing plates is slower than dials
Polyfit’s 5-in-1 kettlebell comes in 30, 40 or 50 lb versions, with five settings starting at 10 lb. The solid cast iron body has a matte non-slip coating.
Early ratings are excellent, though the review count is still small.
Best for: Lifters who want up to 50 lb in cast iron.
May not fit: Buyers who want a long track record.
5. Bells of Steel Adjustable Competition Kettlebell (12–32 kg) – Best Competition-Style Kettlebell
- 12 to 32 kg in 0.5 kg steps
- 41 weight settings
- Competition shape, 35 mm handle
- Steel shell, tool-based plate swaps
Pros
- ✓ Consistent competition size at every weight
- ✓ Tiny 0.5 kg jumps
- ✓ Up to about 70 lb
Cons
- ✗ Changes need tools and about a minute
- ✗ Highest price here
Bells of Steel’s adjustable kettlebell keeps the same competition size at every weight from 12 to 32 kg (about 26 to 70 lb), in tiny 0.5 kg steps.
Changing weight takes tools and about a minute, so it suits programs where you stay at one weight per session.
Best for: Serious kettlebell sport and strength training.
May not fit: Fast workouts with frequent weight changes.
6. XRT65 Adjustable Kettlebell (7.8–40 lb) – Best Dial Alternative
- 7.8 to 40 lb
- Quick dial changes
- Iron handle, color-coded plates
- Compact for apartments
Pros
- ✓ Fast dial adjustment
- ✓ Iron handle feels solid
- ✓ Compact footprint
Cons
- ✗ Smaller brand
- ✗ Fewer reviews than BowFlex
The XRT65 adjustable kettlebell uses a quick dial from 7.8 to 40 lb, similar to BowFlex, with an iron handle and color-coded plates.
It is a smaller brand, but it offers dial convenience at a slightly lower price.
Best for: Dial convenience on a budget.
May not fit: Buyers who prefer big brands.
7. Apex Adjustable Kettlebell Handle (20–50 lb) – Best Budget Plate-Loaded
- 20 lb base, loads to 50 lb
- Uses standard 1-inch plates
- Cast iron with powder coat
- U-shaped handle
Pros
- ✓ Very low price
- ✓ Uses plates you may already own
- ✓ Tough cast iron build
Cons
- ✗ Plates sold separately
- ✗ Changing weight takes time
The Apex adjustable kettlebell handle weighs 20 lb and loads to 50 lb using standard 1-inch plates. If you already own plates, it is the cheapest way to get a heavy kettlebell.
It is solid cast iron, but adding plates takes longer than a dial.
Best for: Lifters with spare 1-inch plates.
May not fit: Fast weight changes.
8. VEVOR Adjustable Kettlebell (5–44 lb) – Best Wide Range on a Budget
- 7 levels: 5, 11.5, 18, 24.5, 31, 37.5, 44 lb
- Die-cast aluminum handle
- ABS shock-absorbing body
- Flat bottom
Pros
- ✓ Wide range for the price
- ✓ Flat base stands upright
- ✓ Seven settings
Cons
- ✗ Lower ratings than top picks
- ✗ Plastic body feels less premium
VEVOR’s adjustable kettlebell offers seven levels from 5 to 44 lb with a die-cast aluminum handle and ABS body.
Ratings are a little lower than our top picks, but the range is wide for the price.
Best for: Budget buyers who want up to 44 lb.
May not fit: People who want a premium build.
How to Choose an Adjustable Kettlebell
Choose the Adjustment Type
Dials (BowFlex, XRT65) are fastest. Push-and-twist designs like REP are also quick. Plate-loaded bells like Apex and Bells of Steel are slower but sturdier.
Pick the Right Range
Most adults do well with a bell that covers about 10 to 40 lb. Strong lifters may want 50 lb or more.
Cast Iron vs Plastic Shell
Cast iron bells feel more traditional and handle hard use better. Plastic-shell dial bells are faster but should not be dropped.
Check the Handle
A wide, smooth handle helps with two-hand swings. A competition-style handle stays the same size at every weight.
Think About Storage
Adjustable kettlebells save space. For more ideas, see our small space kettlebells guide.
FAQ
Are adjustable kettlebells worth it?
Yes, if you want several weights without buying a full set. They save money and floor space.
Can you swing an adjustable kettlebell?
Yes. Most are designed for swings, but always confirm the lock is engaged before each set.
What weight adjustable kettlebell should I buy?
A bell that reaches 35–40 lb suits most people. Strong lifters may want 50 lb or more.
Are adjustable kettlebells as good as cast iron bells?
Cast iron adjustable bells feel close to fixed ones. Dial bells are more convenient but a bit bulkier.
Final Verdict
The BowFlex SelectTech 840 is the best adjustable kettlebell, with fast dial changes from 8 to 40 lb. REP Fitness is the best premium option, and Yes4All is the best cast iron value.
See more in our home gym kettlebell and under $200 guides.
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