The Best Adjustable Dumbbells (UK, 2026)
By Niko Moustoukas, Founder & Editor
Published 14 October 2026
If you want one pair of dumbbells to replace a whole rack and cover you from light rehab weights to a proper workout, buy the Bowflex SelectTech 552i. A twist of the dial sets each dumbbell anywhere from 2kg to 24kg in seconds, so one compact pair does the work of fifteen, and the mechanism is the most proven in the business. It is not cheap, and like all dial dumbbells you must not drop it, but for fast, space-saving home training it is the benchmark everything else is measured against.
If you lift heavier, the NordicTrack goes up to 25kg with the same quick-select convenience; for a cheaper dial set the SONGMICS covers beginners well with fine increments from 1.5kg; and if you want something nearly indestructible for the least money, a spin-lock plate set like the Yaheetech is £30 and will take abuse a dial never could. Below we explain which mechanism suits you, what weight range to buy, and the one rule that keeps any adjustable dumbbell alive.
The winner · Best Overall
Bowflex SelectTech 552i
The proven quick-adjust dumbbell: 2kg to 24kg per hand with a twist of a dial, one compact pair replacing a whole rack.
Price checked live · updated 14 October 2026 · we may earn a commission
The top 5, ranked
★ Our pick · Best OverallBowflex SelectTech 552iThe proven quick-adjust dumbbell: 2kg to 24kg per hand with a twist of a dial, one compact pair replacing a whole rack.Why we picked it ↓£165.99● In stockCheck price
Best for Stronger LiftersNordicTrack Select-A-Weight 25kgQuick-select convenience with a higher ceiling, for people who already lift and need more than 24kg per hand.Why we picked it ↓£349.00● In stockCheck price
Best ValueSONGMICS 11-in-1 Adjustable Dumbbells (1.5 to 18kg)A cheaper quick-adjust set with fine increments from 1.5kg, ideal for beginners and general fitness without the premium price.Why we picked it ↓£139.97● In stockCheck price
Best Budget & Most DurableYaheetech 30kg Spin-Lock Dumbbell Set (2 x 15kg)The honest cheap option: a spin-lock plate set that costs a fraction of the dials and will outlive all of them.Why we picked it ↓£29.99● In stockCheck price
Best Budget Full-RangeKAYMAN 24kg Quick-Dial Dumbbell Set (2 x 12kg)A budget quick-dial set that still reaches a useful 24kg total per bar, for near-Bowflex range at a lower price.Why we picked it ↓£129.99● In stockCheck priceCompare the specs
| # | Product | Best for | Mechanism | Weight range | Adjust speed | Notable | Price |
|---|---|---|---|---|---|---|---|
| Bowflex SelectTech 552i | Best Overall | Dial / quick-adjust | 2 to 24kg each | Seconds | The benchmark | £165.99 | |
| 2 | NordicTrack Select-A-Weight 25kg | Best for Stronger Lifters | Dial / quick-adjust | Up to ~25kg each | Seconds | Higher ceiling + tray | £349.00 |
| 3 | SONGMICS 11-in-1 Adjustable Dumbbells (1.5 to 18kg) | Best Value | Dial / quick-adjust | 1.5 to 18kg each | Seconds | Fine increments | £139.97 |
| 4 | Yaheetech 30kg Spin-Lock Dumbbell Set (2 x 15kg) | Best Budget & Most Durable | Spin-lock / plates | Up to 15kg each | Slow (swap plates) | Toughest, cheapest | £29.99 |
| 5 | KAYMAN 24kg Quick-Dial Dumbbell Set (2 x 12kg) | Best Budget Full-Range | Dial / quick-adjust | Up to ~12kg each | Seconds (6 levels) | Budget quick-dial | £129.99 |
Prices are live from Amazon and refresh through the day; last page update 14 October 2026.
Why adjustable dumbbells, and do you even need them?
The appeal is simple: one pair of adjustable dumbbells replaces a whole rack. Instead of fifteen pairs of fixed weights cluttering a room, you have one compact pair that covers the lot, which is why they are the cornerstone of most home gyms. For progressive training at home, where you want to add weight as you get stronger, they are hard to beat on space and value combined.
That said, be honest about whether you need them:
- Total beginner on a tight budget? A cheap pair of fixed dumbbells, or even a set of resistance bands, can get you started for very little. Adjustable dumbbells earn their keep once you want to keep adding weight.
- Short on space and planning to train regularly? This is exactly what they are for. One pair, a bench, and you have a surprisingly complete setup.
- A dedicated strength lifter? You may outgrow the 24kg-per-hand ceiling of most sets and eventually want a barbell too. Adjustable dumbbells still complement it.
Dial or spin-lock? The core decision
There are two mechanisms, and choosing the right one matters more than the brand.
- Quick-adjust dial / selector (Bowflex, NordicTrack, SONGMICS, KAYMAN): twist a dial, lift the dumbbell out at your chosen weight, leave the rest in the base. Changes take seconds, which keeps a workout flowing, and they are compact. The downsides: they cost more, they are longer than a fixed dumbbell even at light weights, and the mechanism is precision kit that must not be dropped.
- Spin-lock / screw-collar plates (Yaheetech and cast-iron sets): a bar, loose plates and collars you screw on. Cheapest by far and nearly indestructible, with nothing delicate to break, but changing weight means unscrewing, swapping plates and screwing back on, which is slow and fiddly mid-workout.
So: if you will change weight often within a session and value speed, pay for a dial. If you train at steady weights, want maximum durability, or are on a tight budget, spin-lock is the honest, tough choice. The dials buy convenience, not better results.
What weight range should you buy?
- Beginner / general fitness: a set starting light (around 1.5 to 2kg) with fine increments matters, because small isolation moves and early progress use small jumps. A range up to 18 to 24kg per hand covers most people for a long time. The SONGMICS and Bowflex suit this.
- Intermediate: you will want the full 2 to 24kg range and reliable fast changes. The Bowflex is the sweet spot.
- Stronger lifters: rows, presses and goblet squats can pass 24kg per hand; the NordicTrack’s ~25kg helps, and heavy compound lifters eventually add a barbell.
Two rules. Do not buy a huge top weight you will not reach for years; and do not buy so light that you outgrow it in weeks. Match the range to where you are now with a bit of headroom, and favour finer increments if you are a beginner, because steady progression beats big jumps.
Our picks in detail
Bowflex SelectTech 552i
The proven quick-adjust dumbbell: 2kg to 24kg per hand with a twist of a dial, one compact pair replacing a whole rack.
The benchmark adjustable dumbbell, with a huge review history.
The SelectTech 552i is the adjustable dumbbell everything else copies, and it is still the one to beat. Each dumbbell dials from 2kg to 24kg in small steps, so you go from a light shoulder raise to a heavy row in seconds without a rack of separate weights cluttering the room. The selector mechanism is the most refined and reliable here, which matters because this is the part cheaper sets get wrong, and the shape is comfortable to actually train with.
Two honest limits. It is expensive, and like every dial dumbbell you must not drop it, because the selector is precision kit, not a gym-floor slammer; if you train to failure and need to bail a rep, that is a real consideration. And 24kg per hand, while plenty for most people for years, is a ceiling a dedicated lifter will eventually pass for legs and heavy compound work. Within those limits, for fast, space-saving, reliable home training, nothing beats it.
What we like
- Fast dial adjustment, 2 to 24kg per hand
- One compact pair replaces about fifteen
- The most proven, reliable selector mechanism
- Comfortable to train with
What we'd change
- Expensive, and must never be dropped
- 24kg ceiling will be outgrown by dedicated lifters
Buy this if: you want the most reliable quick-adjust dumbbell and will treat it with care.
NordicTrack Select-A-Weight 25kg
Quick-select convenience with a higher ceiling, for people who already lift and need more than 24kg per hand.
If you are past the beginner stage and 24kg per hand is not enough headroom, the NordicTrack Select-A-Weight gives you the same dial-and-lift convenience up to around 25kg per dumbbell, from a well-known fitness brand. It covers heavier rows, presses and goblet squats that a lighter set would cap out on, while still collapsing a rack of weights into one tidy pair, and it comes with its own tray.
It is the priciest option here, and the extra few kilos over the Bowflex is the main thing you are paying for, along with the brand and the storage tray. The same dial-dumbbell rules apply: do not drop it, and check the weight is fully selected before you lift. If you train seriously at home and want quick-adjust without hitting a ceiling early, this is the pick; if 24kg is plenty, the Bowflex saves you money.
What we like
- Higher ~25kg ceiling for heavier lifting
- Quick dial selection, comes with a tray
- Trusted fitness brand
What we'd change
- The most expensive option here
- Still a dial mechanism, so no dropping
Buy this if: you already lift and want quick-adjust dumbbells with more than 24kg per hand.
SONGMICS 11-in-1 Adjustable Dumbbells (1.5 to 18kg)
A cheaper quick-adjust set with fine increments from 1.5kg, ideal for beginners and general fitness without the premium price.
Thousands of reviews at our last count.
You do not have to spend Bowflex money to get quick-adjust convenience, and the SONGMICS is the sensible value pick. It dials from a genuinely light 1.5kg up to 18kg per dumbbell in eleven steps, and that low starting weight and fine progression suit beginners, rehab, and the smaller isolation movements where big jumps are useless. For general home fitness rather than heavy strength work, it covers the range most people actually use.
The trade-offs against the premium sets are a lower top weight and a mechanism that, while fine, is not as refined or as proven over years of hard use, so treat it gently. But for the money it delivers most of the convenience, and the small increments are arguably better for a beginner than the Bowflex’s 2kg jumps. If you want adjustable dumbbells to start or maintain a general fitness habit, this is where to begin.
What we like
- Quick-adjust from a light 1.5kg, fine increments
- Much cheaper than the premium dials
- Good range for beginners and general fitness
What we'd change
- Lower 18kg top weight
- Mechanism less proven than the premium sets; treat gently
Buy this if: you want affordable quick-adjust dumbbells for general fitness or starting out.
Yaheetech 30kg Spin-Lock Dumbbell Set (2 x 15kg)
The honest cheap option: a spin-lock plate set that costs a fraction of the dials and will outlive all of them.
Before you spend £150 on a dial, consider what a traditional spin-lock set gives you for around £30: two bars, a stack of plates and screw collars that adjust each dumbbell up to 15kg, in a format that is nearly indestructible. There is no delicate mechanism to break, you can put them down hard, and if a plate ever got damaged you would just replace that plate. For durability per pound, nothing here comes close.
The catch is convenience: changing weight means unscrewing a collar, swapping plates and screwing it back on, which is far slower than a dial and a faff mid-workout. The bars also get long when loaded. But if you train at a steady weight, are on a tight budget, or simply want weights you never have to baby, this is the sensible, honest choice, and a reminder that the expensive dials buy speed, not strength.
What we like
- Extremely cheap and nearly indestructible
- No fragile mechanism, can be put down hard
- Plates replaceable individually
What we'd change
- Slow to change weight mid-workout
- Bars get long when fully loaded
Buy this if: you want tough, cheap weights and do not mind swapping plates by hand.
KAYMAN 24kg Quick-Dial Dumbbell Set (2 x 12kg)
A budget quick-dial set that still reaches a useful 24kg total per bar, for near-Bowflex range at a lower price.
The KAYMAN sits between the cheap spin-lock and the premium dials: a quick-dial set at a budget price that still offers a useful weight range, adjusting in six levels for fast changes without the Bowflex outlay. For someone who wants the convenience of dialling rather than swapping plates, but cannot justify the premium brands, it is a sensible middle path.
The compromises are coarser six-level increments (bigger jumps between weights) and a mechanism that, like all budget dials, is less proven than the Bowflex, so the no-dropping rule applies doubly. But for quick-adjust training at home on a budget, it delivers the core convenience. If you want the finest increments, the SONGMICS is better for beginners; if you want the toughest weights, the Yaheetech wins; this is the budget quick-dial middle.
What we like
- Quick-dial convenience at a budget price
- Useful weight range per bar
- Faster to change than spin-lock plates
What we'd change
- Coarse six-level increments
- Budget mechanism, do not drop it
Buy this if: you want dial convenience on a budget and can live with bigger weight jumps.
Using adjustable dumbbells safely
- Do not drop them, especially dial types. The selector mechanism is not built for being dropped or slammed, and that is the single biggest cause of adjustable dumbbells failing. Lower them under control.
- Check the weight is fully selected and locked before every lift. A half-engaged plate can fall off mid-rep, which is how toes get hurt.
- Train within your ability, and be cautious going to failure with a dumbbell you cannot safely bail, since you should not drop it. Leave a rep in the tank, or use a spotter for heavy presses.
- Use a mat to protect your floor and the dumbbells, and give yourself clear space around you.
- Warm up and progress gradually. The point of adjustable weights is steady progression; add weight when a set gets genuinely easy, not before.
Common myths, corrected
- "Expensive dumbbells make you stronger." No. The dial sets buy speed and compactness, not results. A £30 spin-lock set builds exactly the same muscle if you train with it; you are paying for convenience.
- "Adjustable dumbbells are as tough as normal ones." The dial types are not. They should never be dropped, where a fixed hex dumbbell shrugs it off. Spin-lock sets are the tough adjustable option.
- "You need a full rack of weights at home." No. One adjustable pair replaces a rack, which is the entire reason they exist. A pair and a bench is a genuinely capable home setup.
- "More weight is always better." Only within reason. Finer increments matter more for a beginner than a huge top weight you cannot use yet. Buy range with a bit of headroom, not a number to brag about.
- "Cheap adjustable dumbbells are a false economy." Not the spin-lock ones, which are tough and effective. It is cheap no-name dial mechanisms that are the gamble; if you want a dial, buy a proven one.
What we’d skip
- Dropping dial dumbbells, ever. The selector mechanism is the expensive, breakable part, and dropping is the number one way these fail. If you train in a way where you might have to drop a weight, a tough spin-lock or fixed set suits you better.
- Buying the heaviest set you can find to future-proof. A 40kg-per-hand ceiling is wasted money and bulk if you will not reach it for years. Buy a range that fits now with a little headroom, and favour fine increments as a beginner.
- Ultra-cheap no-name dial dumbbells with unproven mechanisms. The dial is the one part worth paying for; a flimsy selector that jams or drops plates is worse than a simple, tough spin-lock set at the same price.
- Assuming adjustable dumbbells replace a plan. They are a tool; progress comes from training consistently and adding weight sensibly. The kit is the easy part.
- Paying dial money if you train at steady weights. If you rarely change weight mid-session, the speed of a dial is wasted, and a near-indestructible spin-lock set does the job for a fraction of the cost.
Frequently asked questions
Are adjustable dumbbells worth it?
For home training, usually yes: one pair replaces a whole rack, saving space and money, and lets you add weight as you get stronger. Quick-adjust dials are worth it if you change weight often and value speed; if you train at steady weights or want maximum durability, a cheap spin-lock set does the same job for far less.
Dial or spin-lock adjustable dumbbells?
Dial sets change weight in seconds and are compact, but cost more and must never be dropped. Spin-lock plate sets are the cheapest and nearly indestructible, but slow to change because you unscrew collars and swap plates. Choose dial for convenience, spin-lock for durability and budget. The mechanism matters more than the brand.
What weight should a beginner get?
A set that starts light, around 1.5 to 2kg, with fine increments, because small isolation moves and early progress use small jumps. A range up to about 18 to 24kg per hand covers most people for a long time. Finer increments matter more than a high top weight when you are starting out.
Can you drop adjustable dumbbells?
You should not, especially dial types, whose selector mechanism is precision kit that breaks if dropped or slammed. Lower them under control every time. If you train in a way where you may need to drop a weight, choose a tough spin-lock set or fixed dumbbells instead, which take that abuse.
Do adjustable dumbbells replace a gym?
For a lot of training, a pair of adjustable dumbbells plus a bench is a genuinely capable home setup that covers most upper-body and many lower-body exercises. Dedicated strength lifters will eventually want a barbell too, and you will not get machines, but for general fitness and muscle building at home they go a long way.
How much weight do I actually need?
Enough that your hardest sets are challenging, with a little headroom to progress, not a huge number you cannot lift yet. For most people a range topping out around 24kg per hand lasts years. Buy for where you are now plus a bit, and prioritise fine increments if you are a beginner so you can add weight gradually.
Are cheap adjustable dumbbells any good?
Cheap spin-lock plate sets are genuinely good: tough, effective and a fraction of the price of dials. Cheap no-name dial dumbbells are the gamble, because the selector mechanism is the part that fails. So if you want a dial, buy a proven one; if you want cheap, buy a spin-lock set rather than a flimsy budget dial.
Dumbbells or resistance bands to start?
Resistance bands are the cheapest, most portable way to start and are genuinely effective for a beginner, so they are a fine first step if money or space is tight. Adjustable dumbbells give you heavier, more precise progressive loading, which matters once you want to keep getting stronger. Many people use both.
Ready to choose?
Our one clear winner is the Bowflex SelectTech 552i.