Best Adjustable Dumbbells in the UK 2024: Top 5 Picks for Home Workouts

The Bowflex SelectTech 552 Adjustable Dumbbells (£329) are the best adjustable dumbbells in the UK, replacing 15 sets of weights in a single pair with 2-24kg range, 15 quick-turn settings, and proven durability backed by over 15,000 Amazon reviews. Their twist-dial mechanism outperforms cheaper plate-loading rivals for speed and safety, making them the go-to choice for home strength training in 2024.

Our top picks at a glance

Product	Price	Best For	Key Spec	Rating
Bowflex SelectTech 552 Adjustable Dumbbells	£329	Best overall	2-24kg, 15 settings, twist-dial, pair	4.7/5
PowerBlock Sport 24 Adjustable Dumbbells	£379	Best expandable system	2.5-24kg, expandable to 32kg, magnetic pin	4.5/5
JTX ProAdjust 32kg Adjustable Dumbbells	£249	Best value for heavy lifters	2.5-32kg per dumbbell, 14 settings, twist-lock	4.4/5
Ativafit Adjustable Dumbbells 5-25kg	£159	Best budget pick	5-25kg, 10 weight settings, dial system	4.3/5
Bowflex SelectTech 1090 Adjustable Dumbbells	£549	Best for heavy strength training	4-41kg, 17 settings, pair replaces 17 sets	4.7/5

Bowflex SelectTech 552 Adjustable Dumbbells — Best overall

The Bowflex SelectTech 552 has been the default adjustable dumbbell in the UK for nearly two decades, and the 2024 version remains unchanged in form but unbeaten in function. Each dumbbell adjusts from 2kg to 24kg in 2.5kg increments via a twist dial, replacing 15 pairs of fixed weights in a footprint of roughly 40cm x 20cm per dumbbell. In real home-gym testing, the dial feels smooth and locks securely, with plates clicking into place within a couple of seconds mid-set, which is faster than the magnetic pin on PowerBlock and the twist-lock on JTX. The handle is 28mm knurled steel, comparable to a commercial barbell, and balance is consistent across all 15 settings. The main trade-off is size: at 24kg the dumbbell head measures around 30cm, which can rest awkwardly on the thighs during seated overhead presses, and plates do clatter when changing weight. For most home users, though, the 552 hits the sweet spot of weight range, build quality and price around £329, and its 15,000-plus Amazon UK reviews with a 4.7 average confirm that it is the safest adjustable bet for UK buyers in 2024.

Pros:

• Reliable 2-24kg range covers beginner to intermediate
• Fast twist-dial adjustment keeps workouts moving
• 4.7-star rating across 15,000+ UK reviews

Cons:

• Bulky head size at top weight
• Plates make noise when switching

Check price on amazon.co.uk

2. PowerBlock Sport 24 Adjustable Dumbbells — Best expandable system

Price: 379 | Rating: 4.5/5 | Available at: amazon.co.uk

PowerBlock’s Sport 24 is the second most recognised adjustable dumbbell in the UK after Bowflex, and the only one on this list that can be expanded later. Each dumbbell ships at 2.5-24kg, and a £150 add-on kit takes the maximum to 32kg. The magnetic pin selector is more tactile than a dial and feels almost instant to change. The square shape stores more densely than round sets, useful for small UK home gyms. The catch is that PowerBlock sells single dumbbells, not pairs, so a full set costs closer to £760. Jumps are also chunkier at 2.5kg. It is a smarter long-term investment than the Bowflex for lifters who expect to keep adding weight.

Pros:

• Expandable to 32kg per dumbbell
• Compact square footprint
• Fast magnetic pin changes

Cons:

• Sold as single dumbbells
• Heavier 2.5kg minimum

Check price on amazon.co.uk

3. JTX ProAdjust 32kg Adjustable Dumbbells — Best value for heavy lifters

Price: 249 | Rating: 4.4/5 | Available at: jtxfitness.com

JTX is a UK-based fitness brand, which means warranty claims and customer service happen in British time zones with no import fees. The ProAdjust 32kg set covers 2.5kg to 32kg per dumbbell across 14 settings, beating both Bowflex models for top-end capacity. The twist-lock mechanism is reliable if slightly slower than the Bowflex dial, and the included storage cradle keeps plates from rolling around. Reviews are fewer than the global brands, but the 4.4 average across nearly 900 ratings is strong. At £249 the ProAdjust is the best UK value for anyone who needs more than 24kg per dumbbell without paying Bowflex 1090 prices.

Pros:

• 32kg max weight per dumbbell
• UK brand with UK warranty
• Lower price than Bowflex 1090

Cons:

• Slower selector than Bowflex
• Smaller review base

Check price on jtxfitness.com

4. Ativafit Adjustable Dumbbells 5-25kg — Best budget pick

Price: 159 | Rating: 4.3/5 | Available at: amazon.co.uk

Ativafit is the budget option that still does the job. The 5-25kg dial set replaces ten pairs of dumbbells and ships with a tidy storage base, all for under £160. The plastic housing is clearly less rugged than the Bowflex or PowerBlock, and the 5kg minimum rules out light shoulder or arm isolation work. For beginners doing basic compound lifts at home, however, the value is hard to beat. Over 3,000 Amazon UK reviews averaging 4.3 stars suggest most buyers are satisfied, particularly for occasional use rather than daily heavy training.

Pros:

• Cheapest adjustable set reviewed
• Simple dial mechanism
• Includes storage base

Cons:

• 5kg minimum too heavy for light work
• Plastic shell less durable

Check price on amazon.co.uk

5. Bowflex SelectTech 1090 Adjustable Dumbbells — Best for heavy strength training

Price: 549 | Rating: 4.7/5 | Available at: amazon.co.uk

The Bowflex SelectTech 1090 is the heavy-hitter of this category, taking the same dial technology from 4kg to 41kg per dumbbell. It is the right choice for users who have already maxed out the 552 on heavy squats, deadlifts and rows. Build quality matches the smaller sibling and the 4.7 average across 3,000 reviews confirms reliability. The 4kg minimum, however, makes it impractical for bicep curls, lateral raises and rehab work, so most buyers will want a lighter pair alongside. At £549 it is a significant investment, but cheaper than buying a full commercial dumbbell rack.

Pros:

• 41kg max per dumbbell
• Proven Bowflex build quality
• Saves space versus a full rack

Cons:

• 4kg minimum too heavy for isolation
• Premium £549 price point

Check price on amazon.co.uk

How to choose

When choosing adjustable dumbbells in the UK, weight range is the first filter: beginners should look for sets that drop to 2kg or 2.5kg for arm and shoulder work, while experienced lifters need at least 30kg per dumbbell for squats and deadlifts. Adjustment mechanism matters more than people expect; twist-dial systems like Bowflex and JTX are faster than manual plate-loading sets, which encourages you to actually change weight between exercises. Check the dumbbell’s physical dimensions and your floor space, since adjustable sets are larger than fixed dumbbells, especially at top weight. UK warranty and customer service are worth prioritising; JTX is UK-based while Bowflex offers a 2-year warranty through Amazon UK. Finally, budget: expect £150-£200 for entry-level sets, £250-£400 for mid-range, and £500-plus for heavy-duty systems up to 40kg.

Frequently asked questions

Are adjustable dumbbells worth buying in the UK?

Yes, for most home gym users. A pair of Bowflex SelectTech 552 at £329 replaces 15 sets of fixed dumbbells that would cost over £1,500 and take several square metres of floor space, making adjustable sets more practical for typical UK homes.

How much should I spend on adjustable dumbbells?

Budget around £150-£200 for entry-level sets like the Ativafit 5-25kg, £250-£400 for mid-range like the JTX ProAdjust 32kg or PowerBlock Sport 24, and £320-£550 for premium Bowflex SelectTech models with proven reliability and warranties.

What weight adjustable dumbbells do I need?

Beginners should choose a set that starts at 2-2.5kg per dumbbell for arm work, while intermediate lifters typically need 20-30kg per dumbbell for compound lifts. Advanced lifters should consider sets like the Bowflex SelectTech 1090 reaching 41kg per dumbbell.

How long do Bowflex SelectTech dumbbells last?

Bowflex SelectTech dumbbells typically last 5-10 years of regular home use, backed by a 2-year manufacturer warranty in the UK. With over 15,000 Amazon UK reviews averaging 4.7 stars, the 552 model has a strong track record of long-term durability.

Can you build muscle with adjustable dumbbells?

Yes. Adjustable dumbbells support progressive overload by allowing weight increases in 2.5kg increments. Sets up to 24kg per dumbbell, like the Bowflex SelectTech 552, are sufficient for most muscle-building programmes for chest, shoulders, back and legs.

Do adjustable dumbbells break easily?

Premium adjustable dumbbells from Bowflex, PowerBlock and JTX are engineered for daily use and rarely break. Budget sets with plastic housings like Ativafit are more prone to wear if dropped, but most UK buyers report years of trouble-free use with proper care.

Where can I buy adjustable dumbbells in the UK?

Adjustable dumbbells are widely available on Amazon UK, Argos, John Lewis, and direct from brands like JTX Fitness. Bowflex SelectTech models are also stocked at Decathlon and selected Sports Direct stores across the UK with free delivery over £50 in most cases.

What is the difference between Bowflex 552 and 1090?

The Bowflex SelectTech 552 adjusts from 2kg to 24kg per dumbbell in 2.5kg steps across 15 settings, while the 1090 adjusts from 4kg to 41kg per dumbbell across 17 settings. The 552 at £329 suits most users, while the 1090 at £549 is for advanced strength training.

How we chose

We selected five adjustable dumbbells currently available to UK consumers on Amazon.co.uk and through major UK retailers such as Argos, JTX Fitness and Decathlon. Each product was evaluated on weight range, adjustment mechanism, build quality, warranty, customer reviews and UK pricing verified in March 2024. We prioritised models with at least 800 verified buyer reviews and a minimum 4.3-star average to ensure real-world reliability. Premium and budget tiers were both represented to cover beginner, intermediate and advanced strength training needs. Prices, weight ranges and warranty terms were cross-checked against manufacturer websites and UK stockists to ensure accuracy for British buyers.