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Buy · €19.99Home Gym & Strength · Adjustable dumbbells
Best Adjustable Dumbbells (2026): 7 Sets Compared
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A pair of adjustable dumbbells replaces a full dumbbell rack and fits under your bed. But they're not all equal: some go up in 1 kg steps and others in 4 kg steps, some reach 32 kg and others stop at 11. We compared seven sets from Amazon and Decathlon, from a €50 spin-lock kit to premium dumbbells over €400. Prices from Spanish/European stores on October 5, 2026.
How we compared
- Adjustment system: spin-lock plates, selector dial or selector pin.
- Max weight per dumbbell, and whether it's sold as one or a pair.
- Weight jumps: the smaller, the easier it is to progress on shoulders and arms.
- Size and noise: length at max weight and how loud they are when set down.
- Customer ratings and real price.
Quick comparison
| Dumbbells | Price | Range per dumbbell | System |
|---|---|---|---|
| Corength 20 kg kit | €49.99 (pair) | 1.6-10 kg (up to 32 kg with extra plates) | Spin-lock plates |
| JUPPLIES 24 kg | €129.99 (single) | 2.5-24 kg | Dial |
| Bowflex SelectTech 52 | €214.99 | 2-24 kg | Dial |
| BRAINGAIN 24 kg | €229.00 (pair) | 2.5-24 kg | Dial |
| PowerBlock Sport 24 | €239.00 (pair) | 1.4-10.9 kg | Pin |
| LULLAX NEO32 | €410.00 (pair) | 4-32 kg | Twist in cradle |
| LULLAX NEO Slim 24 | €465.00 (pair) | 2-24 kg | Twist in cradle |
The three adjustment systems
Spin-lock plates: a short threaded handle, plates and collars you screw on. It's the cheapest and most durable option, but changing weight takes 30-60 seconds per dumbbell. Fine if you don't change weights often.
Selector dial (Bowflex, BRAINGAIN, JUPPLIES, LULLAX): you set the dumbbell in its cradle, turn a dial or the handle, and it picks up only the plates you chose. Weight changes take seconds. The trade-off: you can only adjust in the cradle, and the mechanisms and plastic parts shouldn't be dropped.
Selector pin (PowerBlock): the dumbbell is a rectangular block and you choose the weight with a magnetic pin. It's very compact and tough, though the block shape gets in the way on some moves like a close-grip press.
Weight increments: the detail you'll notice most
On squats or bench press, a 2 kg jump is no big deal. On lateral raises or curls, going from 8 to 12 kg in one step is impossible for most people.
The NEO32 goes up in 4 kg steps: good for big lifts, bad for shoulders. The 24 kg dial sets have 15 settings with 1-2.5 kg jumps. The plate kit lets you add 1 kg per side.
Size, cradle and noise
Dial dumbbells are about 39-47 cm long at any weight, because the handle doesn't change. The LULLAX sets get shorter at light weights, and the PowerBlock Sport 24 is only about 25 cm long.
Dial sets rattle a bit as plates move in the cradle, and they must never be dropped. If you train in an apartment, a thick mat underneath prevents bangs and complaints from the neighbors.
1. Corength 20 kg Dumbbell Kit
€49.99
The cheapest way to start lifting at home, if you don't mind screwing on plates.
Includes2 x 35 cm handles, 8 x 1 kg plates, 4 x 2 kg plates, 4 collars
Total weight20 kg
Diameter28 mm
SystemSpin-lock plates
Pros
- Full pair for €50, with a carrying case.
- 28 mm handles expandable up to 32 kg per dumbbell with more plates.
- Nearly indestructible cast-iron plates.
Cons
- Slow weight changes: you have to unscrew the collars.
- 10 kg per dumbbell with the basic kit: soon too light for legs and back.
2. JUPPLIES 24 kg Adjustable Dumbbell
€129.99 (single)
For lifters who want a dial dumbbell and are happy to start with just one.
Range2.5-24 kg
Settings15
SystemDial
Sold asSingle
Pros
- 15 settings from 2.5 to 24 kg with a selector dial.
- Storage cradle included.
- 4.7 out of 5 from 57 ratings on Amazon.
Cons
- Priced per dumbbell: a pair costs more than the BRAINGAIN set.
- Lesser-known brand with few ratings so far.
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3. Bowflex SelectTech 52
€214.99
For buyers who want the original dial system from a well-known brand.
Range2-24 kg
Settings15
SystemDial
Dimensions47 x 20 x 23 cm
Pros
- 15 settings from 2 to 24 kg with the SelectTech dial.
- Uniform plates and a classic dumbbell shape.
- 4.6 out of 5 on Amazon (only 7 ratings so far).
Cons
- Long: about 47 cm per dumbbell.
- Check the listing to see if the price is for one or a pair.
4. BRAINGAIN 24 kg Adjustable Dumbbells
€229.00 (pair)
The best-value dial dumbbells: a full pair for under €230.
Range2.5-24 kg
Settings15
SystemDial
Dimensions39 x 20 x 23 cm
Pros
- Pair from 2.5 to 24 kg with 15 settings and 1-2.5 kg jumps.
- Cradle included and compact size (39 cm long).
- 4.6 out of 5 from 399 ratings on Amazon.
Cons
- Can only be adjusted in the cradle.
- 24 kg may be too light for rows or deadlifts if you already lift heavy.
5. PowerBlock Sport 24
€239.00 (pair)
For anyone who wants something very compact for shoulders, arms and toning, not heavy lifting.
Range1.4-10.9 kg (3-24 lb)
Settings8, 3 lb jumps
SystemMagnetic pin
Grip32 mm
Pros
- Very compact: about 25 cm long.
- Quick magnetic pin and no fragile parts.
- 4.6 out of 5 from 1,500+ ratings on Amazon.
Cons
- Max 24 lb (10.9 kg) per dumbbell, even though the name suggests 24 kg in Europe.
- Not expandable.
6. LULLAX NEO32
€410.00 (pair)
For serious home lifters who need up to 32 kg per hand.
Range4-32 kg
Settings8, 4 kg jumps
SystemTwist handle in cradle
Max length43.4 cm
Pros
- Up to 32 kg per dumbbell: enough for heavy rows, presses and lunges.
- Gets shorter at lighter weights.
- Cast iron and stainless steel.
Cons
- 4 kg jumps: too big for shoulders and arms.
- Sold by a marketplace seller, no ratings on Decathlon.
7. LULLAX NEO Slim 24
€465.00 (pair)
For buyers who want slim premium dumbbells with steady 2 kg jumps.
Range2-24 kg
Settings12, 2 kg jumps
SystemTwist handle in cradle
Sold asPair
Pros
- 12 settings from 2 to 24 kg, always in 2 kg steps.
- Slim plates and a handle that locks during use.
- Adjusts only in the cradle: no accidental turning.
Cons
- Pricier than the NEO32 with a lower max weight.
- Sold by a marketplace seller, no ratings on Decathlon.
Verdict
For most people, the BRAINGAIN 24 kg set is the best buy: a full pair, 15 settings and almost 400 ratings for €229. On a tight budget, the €50 Corength 20 kg kit works and can be expanded. If you already lift heavy, the LULLAX NEO32 goes up to 32 kg. Watch out for the PowerBlock Sport 24: that's 24 pounds, not 24 kg.
Frequently asked questions
What weight adjustable dumbbells should I get?
To start, 2-24 kg (5-52.5 lb) per dumbbell covers almost everything. If you already train and do heavy rows, lunges or presses, look for 32 kg (70 lb).
Are adjustable dumbbells worth it?
Yes if you train at home: one pair replaces 15 pairs of fixed dumbbells and takes up the space of a big shoebox. Plate-loaded sets are cheaper but slow to change.
Can you drop adjustable dumbbells?
No. Dial dumbbells have mechanisms and plastic parts that can break. Set them down with control or put them back in the cradle.
Dial or plate-loaded dumbbells?
Dial if you change weights often or do supersets. Plate-loaded if you want to spend less and care more about durability than speed.
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