Buy the Nuobell 580 only if you already press or row above the low fifties per hand, or know you will within a year. Everyone else should buy the Bowflex SelectTech 552, because the Nuobell costs roughly double for a weight range most home lifters never reach. That's the whole comparison in two sentences. The detail below is about the cases where that default is wrong.
The two sets solve the same problem with different priorities. The Bowflex 552 is a dial dumbbell running 5 to 52.5 lb per hand across fifteen settings, with fine 2.5 lb steps up to 25 lb — the refinement is in the low end, where small-muscle work lives. The Nuobell 580twists in its cradle to select 5 to 80 lb per hand in 5 lb steps, in a body barely longer than a fixed dumbbell, with metal doing most of the structural work instead of plastic. One is optimized for granularity and price; the other for ceiling and durability.
The uncomfortable part of this comparison is that the Nuobell's headline advantage — that extra ceiling — is dead weight for the majority of people who buy it. A 52.5 lb dumbbell press is a strong lift. Plenty of experienced home lifters train for years without needing more per hand, and those who do need more usually want a barbell rather than heavier dumbbells. Paying roughly twice as much for a range you never select is the most common expensive mistake in this category, and it's worth saying plainly before you spend.
Where the Nuobell earns its price honestly is on two secondary points: the body stays short at heavy loads, which matters on a narrow bench in a small room, and there's less plastic in the load path, which is the part that eventually fails on dial dumbbells. If either of those is a genuine constraint for you — cramped bench, or a history of breaking gear — the premium starts to look like a purchase rather than a splurge. If you want the wider field before picking a side, our adjustable dumbbells roundup ranks five pairs, and the Bowflex vs PowerBlock head-to-head settles the other comparison people cross-shop.
The short answer
Quick picks
| # | Product | Best for | Score | Price |
|---|
| 01 | Nuobell 580 Adjustable Dumbbells (5–80 lb)The premium answer: twist the handle and it goes from 5 to 80 lb per hand, in a body barely longer than a fixed dumbbell. It costs roughly twice the mainstream adjustables, and for a heavy lifter in a small room it's the one that doesn't run out of weight. | Highest weight in the smallest handle | | $745.00·Amazon |
| 02 | Bowflex SelectTech 552 (Results Series)The default answer for a reason: one dial takes each dumbbell from 5 to 52.5 lb in fine steps, and the pair replaces a rack of fifteen. The dial mechanism is the thing you're really buying, and Bowflex's is the most refined. | Most small-space lifters | | $379.98·Amazon |
#ad · Live prices from the Amazon Product API, as of Sep 9, 2026. Where we have no verified live price, we show none — we would rather leave a gap than print a number that has rotted.
In detail
The picks, in full
Highest weight in the smallest handle
Nuobell 580 Adjustable Dumbbells (5–80 lb)
5–80 lb / handTwist-handle adjustMetal buildCompact body
The premium answer: twist the handle and it goes from 5 to 80 lb per hand, in a body barely longer than a fixed dumbbell. It costs roughly twice the mainstream adjustables, and for a heavy lifter in a small room it's the one that doesn't run out of weight.
Good
- +80 lb per hand — the highest ceiling here
- +Shorter body than most dial dumbbells at heavy loads
- +Metal-heavy construction with little plastic in the load path
Trade-offs
- −By far the most expensive option in the category
- −5 lb increments only — no fine low-end jumps
- Fit
- 9
- Value
- 6
- Install
- 10
- Build
- 9
Skip this if…
…you'll never press past 50 lb per hand — you'd be paying roughly double for headroom you won't use.
Spec sheet
- Weight range
- 5–80 lb / hand
- Increments
- 5 lb steps
- Replaces
- ~16 pairs of dumbbells
- Adjust
- Twist the handle in the cradle
- Install / renter
- Freestanding — zero install
- Noise / floor
- Low — never dropped in normal use
Most small-space lifters
Bowflex SelectTech 552 (Results Series)
5–52.5 lb / hand2.5 lb steps to 2515 settingsDial adjust
The default answer for a reason: one dial takes each dumbbell from 5 to 52.5 lb in fine steps, and the pair replaces a rack of fifteen. The dial mechanism is the thing you're really buying, and Bowflex's is the most refined.
Good
- +Fine 2.5 lb steps at the low end — good for small-muscle work
- +Refined dial that rarely mis-seats plates
- +Replaces 15 pairs in the footprint of one
Trade-offs
- −Long at low weights — the whole 52.5 lb handle length even at 10 lb
- −Plastic tray parts can crack if dropped on a hard floor
- Fit
- 9
- Value
- 8
- Install
- 10
- Build
- 8
Skip this if…
…you routinely drop dumbbells or train past 52.5 lb per hand — the plates aren't rated for drops and there's no heavier version of this model.
Spec sheet
- Weight range
- 5–52.5 lb / hand
- Increments
- 2.5 lb (to 25), then 5 lb
- Replaces
- 15 pairs of dumbbells
- Footprint (each)
- 16.9 × 8.3 in (published)
- Install / renter
- Freestanding — zero install
- Noise / floor
- Low — never dropped in normal use
The verdict, by use case
You already lift above the low fifties → Nuobell
This is the one case where the Nuobell is straightforwardly correct. The Bowflex 552 tops out at 52.5 lb per hand and there is no heavier version of that model, so hitting the ceiling means buying a second, different pair — at which point you've spent more than the Nuobell and you own two cradles. If you know your working weight is already there, buy the ceiling once.
Fine low-end steps and best price → Bowflex
The Bowflex's 2.5 lb increments below 25 lb are a real training advantage for lateral raises, curls, rear delt work and anything rehab-adjacent, where a 5 lb jump can be the difference between completing a set and failing it. The Nuobell moves in 5 lb steps throughout. Combine finer granularity with roughly half the price and the Bowflex is the better dumbbell for most people's actual programs.
Tight bench, or hard on equipment → Nuobell
Two secondary wins for the Nuobell are worth real money to the right buyer. Its body stays short at heavy settings, where the Bowflex carries its full length even dialed down — on a narrow bench in a small room, a long handle catching your thigh at the bottom of a press is a daily annoyance. And with metal through most of the load path, there's less of the plastic tray hardware that's the usual failure point. Neither set is rated for drops regardless.
Everyone else → Bowflex
If your working weights sit comfortably inside the low fifties and your bench isn't cramped, the Bowflex is the better buy and it isn't close on value. Put the difference into a bench, a floor mat or a proper storage solution instead — those upgrades change your training more than a ceiling you never select. Still unsure whether either belongs in your room? Start with are adjustable dumbbells worth it?
How we picked
We don't run a testing lab
We compiled published specifications, manufacturer documentation and aggregated owner reviews, then scored each product against a published rubric that weights fit-for-small-space, value, install reversibility and build. The scores are judgments from documented research — they are notmeasurements we took, because we don't have a lab and we're not going to pretend we do. Every dimension is cited in Sources.
Questions
Frequently asked
Is the Nuobell worth twice the price of a Bowflex 552?+
Only if you use the extra range. The Nuobell's case rests on reaching 80 lb per hand, a compact body at heavy settings, and more metal in the load path — genuine advantages, but ones that pay off for a minority of home lifters. If your dumbbell work lives below the low fifties, you're paying a large premium for settings you'll never select. Be honest about your actual working weight before you decide.
Which is more compact, the Nuobell or the Bowflex 552?+
The Nuobell is the shorter object at heavy loads — it stays close to fixed-dumbbell length where the Bowflex carries its full 52.5 lb handle length even when dialed down to 10 lb. On a narrow bench that difference is noticeable during pressing. Both store in a cradle roughly the width of a single pair, so the storage footprint is broadly comparable; the difference is in the handle, not the shelf.
Which has better weight increments?+
The Bowflex, clearly. It steps in 2.5 lb increments up to 25 lb before switching to 5 lb jumps, which suits small-muscle and accessory work. The Nuobell moves in 5 lb steps across its whole range. If a large share of your program is isolation work, that granularity is worth more day to day than an extra 27.5 lb of ceiling you rarely touch.
Which is more durable?+
The Nuobell has the edge on paper, with metal through most of the load path and less of the plastic tray hardware that tends to be the failure point on dial dumbbells. That said, neither is rated to be dropped and both will survive normal, controlled use for years. We haven't run either to failure — we don't have a lab and won't pretend otherwise — so this reads off the published construction, not a durability test.
Should a beginner buy the Nuobell?+
Generally no. A beginner won't approach 80 lb per hand for a long time, if ever, and the finer low-end increments on the Bowflex are more useful in the early years when small jumps make progression sustainable. Spend the difference on a bench and floor protection, which will affect your training far sooner. Our
budget bracket page goes further down the price ladder if you want a cheaper start.
Receipts
Sources
We don't run a testing lab, and we don't pretend to. Every dimension and rating traces to a manufacturer spec sheet or manual, named and linked above. Where a maker doesn't publish a number, the spec reads "Not published" rather than a guess. Read our full method.
