Weights · Research-based buyer's guide
PowerBlock Adjustable Dumbbells: UK Buyer's Guide
The PowerBlock Elite EXP Stage 1 pair costs £399 on Amazon UK and directly from PowerBlock's own UK site (checked 6 August 2026), covering a 2.3–22.7kg-per-hand range that expands to 40.8kg per hand with two further kits sold separately. It's the cheapest way into a system built around genuine multi-stage expandability rather than a traditional dumbbell shape. This is a research-based guide, not a hands-on review — we have priced and specced PowerBlock's UK range directly against retailers, but have not physically tested it ourselves.
This is a research-based comparison
We have not bought, assembled or used a PowerBlock set ourselves. Everything below is built from manufacturer specifications, UK pricing checked directly against Amazon UK and powerblock.com/en-gb on 6 August 2026, and a read of verified owner reviews — not our own measurements.
No product here carries one of our own numeric scores, because a score requires hands-on testing under Test Bench v1.0, which we haven't done for PowerBlock yet.
What is PowerBlock, and how is it different from a dial dumbbell?
Most adjustable dumbbells UK buyers encounter — NÜOBELL, BrainGain, Bowflex — keep a recognisably dumbbell-shaped handle with a dial or collar at one end. PowerBlock does something structurally different: a metal pin runs through a stack of flat, square steel plates housed inside a compact cage. Pull the pin, slide it to your chosen weight, push it back in, and lift — only the plates above the pin travel with the handle, the rest stay in the cradle.
The result looks and feels genuinely different in the hand. Instead of a shaped dumbbell head, you're holding a squared-off block with the handle sitting between two flat faces. It's a distinctive, divisive design that some owners describe as the most space-efficient adjustable system available — because the block's footprint barely grows as you add weight — and others find awkward for anything beyond standard standing exercises.
How much do PowerBlock adjustable dumbbells cost in the UK?
The Elite EXP range is sold in three stages: a base pair, then two optional expansion kits that each require the stage before them. Prices below are the same on Amazon UK and PowerBlock's own UK site, checked live on 6 August 2026.
| Stage | Weight range (per hand) | Price (checked 6 Aug 2026) | Note |
|---|---|---|---|
| Stage 1 (base pair) | 2.3–22.7kg | £399.00 | Buy this to start |
| Stage 2 kit | up to 31.8kg | £199.00 | Sold separately, requires Stage 1 |
| Stage 3 kit | up to 40.8kg | £199.00 | Sold separately, requires Stage 1 + 2 |
| Weight range | 2.3–22.7kg per hand5–50lb, 1.13kg (2.5lb) increments |
|---|---|
| Dimensions | Approx. 30.5 × 15.2 × 15.2cm per block12 × 6 × 6in, Amazon UK listing |
| Item weight | 23kgPair, as listed on Amazon UK |
| Warranty | 5 years, residential use onlyNot valid for commercial use — powerblock.com/en-gb |
| Owner reviews | 4.6★ from 2,647 ratingsAmazon UK, checked 6 Aug 2026 |
Pros
- Same £399 price confirmed on Amazon UK and PowerBlock's own UK site
- Genuine multi-stage expansion path to 40.8kg per hand
- 5-year warranty for residential use
Cons
- Square shape doesn't suit every exercise
- Stage 2 and Stage 3 kits add £398 combined if you expand fully
Is the PowerBlock expansion system actually worth it?
PowerBlock's real selling point isn't the pin mechanism — it's that you can buy into the system gradually. Stage 1 at £399 covers most pressing, curling and isolation work up to 22.7kg per hand. If you outgrow that ceiling, the Stage 2 kit (£199) takes the same blocks to 31.8kg per hand, and Stage 3 (£199 on top) reaches 40.8kg per hand — all without replacing the base unit or buying a second set.
The trade-off is cost if you buy every stage: £399 plus £199 plus £199 comes to £797 total for the full 40.8kg range, which isn't automatically cheaper than a single higher-capacity adjustable set bought once. Where expansion genuinely pays off is spreading that spend across the months or years it actually takes most lifters to progress from a 22.7kg to a 40kg-plus working weight — you pay for capacity roughly when you need it, rather than upfront for headroom that might sit unused for a year or more.
The practical check before buying Stage 1 alone: look honestly at how quickly you've progressed on comparable lifts before. If you know you'll need 30kg-plus within months, buying the higher range in one purchase — whether that's PowerBlock's own bundled sets or a rival brand's larger set — may work out simpler and no more expensive than paying for three separate stages.
PowerBlock vs NÜOBELL vs Bowflex — which mechanism should you buy?
PowerBlock is one of seven adjustable dumbbells we compare in full on our main adjustable dumbbells guide, where it's ranked "Most expandable." The short version, focused on mechanism rather than brand:
| Product | Mechanism | Weight range (per hand) | Price (checked 6 Aug 2026) |
|---|---|---|---|
| PowerBlock Elite EXP (Stage 1) | Pin-select, stacked block | 2.3–22.7kg | £399.00 pair |
| NÜOBELL 2-20kg | Rotating dial | 2–20kg | £499.00 pair |
| Bowflex SelectTech 552i | Dial-select tray | 2–24kg | £337.99 pair |
Pin-select systems like PowerBlock generally fail differently to rotating dials: if the pin isn't pushed fully home, plates above it can shift under load even though the dumbbell felt secure on pickup — a static-pin failure mode rather than a dynamic-lock one. A five-second check that the pin sits flush before your working set costs nothing and matters more on a pin system than a dial. For the fuller picture on how dial mechanisms compare, including the 2025 Bowflex recall, see the mechanism breakdown on our main guide.
Who is PowerBlock actually for, and who should skip it?
For: lifters planning a multi-year progression who'd rather buy expansion kits as they need them than replace a whole set; anyone who values the block's small, near-constant footprint over a traditional dumbbell shape; and anyone doing mostly standing exercises — presses, curls, rows, lunges — where the block's shape rarely gets in the way.
Not for: anyone whose programme leans on floor-contact or ground-based movements. Renegade rows, floor presses and some push-up variations are commonly reported by owners as awkward with PowerBlock's flat-bottomed, wide-cornered shape, in a way they simply aren't with a rounded dumbbell head. The square silhouette and higher handle position genuinely divide opinion — some owners adapt within a session, others never warm to it — so if you can try one in person before buying, that beats reading a spec sheet.
Cheaper and dearer alternatives
Cheaper than PowerBlock: the BrainGain SmartBells 24kg pair at £198.50 is a dial system covering a similar practical weight range for roughly half the Stage 1 price, if the block shape isn't a priority for you.
Dearer than PowerBlock: the NÜOBELL 2-20kg pair at £499 keeps a traditional dumbbell shape throughout, at a higher cost per kilogram, for buyers who specifically dislike PowerBlock's boxy silhouette.
Frequently asked questions
What is PowerBlock and how does it differ from a dial dumbbell?
PowerBlock uses a metal pin through a stack of flat, square weight plates housed inside a boxy cradle, rather than a rotating dial or collar. You pull the pin, slide it to your chosen weight, and push it back in — only the plates above the pin travel with the handle. Dial systems like NÜOBELL or Bowflex twist a collar to engage pins internally instead. The mechanism is different, and so is the shape: PowerBlock keeps a squared-off, cage-like silhouette rather than a traditional dumbbell head.
How much do PowerBlock adjustable dumbbells cost in the UK?
The Elite EXP Stage 1 pair costs £399 on Amazon UK and directly from powerblock.com/en-gb (both checked 6 August 2026 and matching exactly), covering 2.3–22.7kg per hand. Expanding further costs £199 for the Stage 2 kit (up to 31.8kg per hand) and another £199 for the Stage 3 kit (up to 40.8kg per hand), both sold separately and both requiring the Stage 1 pair already owned.
Is the PowerBlock expansion system actually worth it?
It depends on how confident you are about your future weight needs. Buying Stage 1 now for £399 and adding Stage 2 later for £199 costs £598 total to reach 31.8kg per hand — more than buying a single higher-capacity set upfront would likely cost, but it spreads the spend across years and avoids paying for headroom you might never use. If you already know you'll need 30kg-plus per hand within a year, a one-off purchase of a higher-range set may work out cheaper than PowerBlock's staged path.
Who shouldn't buy PowerBlock adjustable dumbbells?
Anyone who relies on floor-based or ground-contact exercises where a wide, flat-bottomed block gets in the way — renegade rows, floor presses, and some push-up variations are commonly reported as awkward with PowerBlock's shape compared with a traditional dumbbell head. Anyone who simply dislikes the boxy aesthetic over a classic dumbbell shape is also better served by a dial system like NÜOBELL.
Is PowerBlock compatible with other adjustable dumbbell brands' expansion kits?
No. PowerBlock's own compatibility documentation is explicit that Elite EXP expansion kits work only with the Elite Series and Elite EXP base units — not with PowerBlock's own Classic, Commercial, Pro, Sport or Urethane series, and not with any other manufacturer's dumbbells. Always check compatibility against your exact base model before buying a kit.
For the full seven-way comparison, including NÜOBELL, Bowflex and the rest of the field, see Best Adjustable Dumbbells UK, or browse every category in free weights.
Update log
First published. Research-based buyer's guide built from live UK pricing at powerblock.com/en-gb and Amazon UK, cross-checked against the mechanism comparison already published on /weights/adjustable-dumbbells/; no hands-on testing has taken place.