SMRTFT NUOBELL 80 Adjustable Dumbbells vs BowFlex Results Series 552 SelectTech Dumbbells
SMRTFT NUOBELL 80 Adjustable Dumbbells (#3) vs BowFlex Results Series 552 SelectTech Dumbbells (#5, best budget): in our Adjustable Dumbbells scoring the SMRTFT NUOBELL 80 Adjustable Dumbbells totals 7.8/10 and the BowFlex Results Series 552 SelectTech Dumbbells 6.7/10.
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TopsFive comparison scores
Side by side
| SMRTFT NUOBELL 80 Adjustable Dumbbells | BowFlex Results Series 552 SelectTech Dumbbells | |
|---|---|---|
| Price | $780 | $429 |
| Weight Range | 5-80 lbs each | 5-52.5 lbs each |
| Increments | 5 lbs (16 settings) | 2.5 lbs (5-25), then 5 lbs (25-52.5) |
| Dimensions | 17" x 7.5" x 7.5" | 16.9" x 8.3" x 9" |
| Adjustment | Patented twist-lock | Dial system + trays |
| Handle | 32mm knurled aluminum | — |
| Warranty | — | 2-year parts |
How they differ in real use
Built from our adjustable dumbbells scoring, each product's published specifications, and verified owner feedback — not hands-on testing.
Both the SMRTFT NUOBELL 80 Adjustable Dumbbells and the BowFlex Results Series 552 SelectTech Dumbbells made our Top 5 Adjustable Dumbbells, at #3 and #5 (best budget). Closest to traditional dumbbell feel with fastest twist-and-go adjustment. 5-80 lb range is the highest in this group—but not drop-friendly and only 2-year warranty. 15 weight settings with 2.5 lb steps early on. Most recognized brand—but bulky constant-length design and 2025 CPSC recall on older 552/1090 models warrant caution.
We score adjustable dumbbells on Motion Quality (35%), Build Quality (25%), Features (20%), Footprint (10%) and Value (10%). On that basis the SMRTFT NUOBELL 80 Adjustable Dumbbells totals 7.8 out of 10 and the BowFlex Results Series 552 SelectTech Dumbbells 6.7. The widest gap is Motion Quality, where the SMRTFT NUOBELL 80 Adjustable Dumbbells scores 9 against 7 for the BowFlex Results Series 552 SelectTech Dumbbells — how close to traditional fixed dumbbells during lifts. Build Quality also separates them: 7 for the SMRTFT NUOBELL 80 Adjustable Dumbbells versus 6 for the BowFlex Results Series 552 SelectTech Dumbbells. The BowFlex Results Series 552 SelectTech Dumbbells claws back ground on Value.
On paper, the specifications that actually differ: Weight Range — 5-80 lbs each on the SMRTFT NUOBELL 80 Adjustable Dumbbells versus 5-52.5 lbs each on the BowFlex Results Series 552 SelectTech Dumbbells; Increments — 5 lbs (16 settings) on the SMRTFT NUOBELL 80 Adjustable Dumbbells versus 2.5 lbs (5-25), then 5 lbs (25-52.5) on the BowFlex Results Series 552 SelectTech Dumbbells; Dimensions — 17" x 7.5" x 7.5" on the SMRTFT NUOBELL 80 Adjustable Dumbbells versus 16.9" x 8.3" x 9" on the BowFlex Results Series 552 SelectTech Dumbbells; Adjustment — Patented twist-lock on the SMRTFT NUOBELL 80 Adjustable Dumbbells versus Dial system + trays on the BowFlex Results Series 552 SelectTech Dumbbells.
Pricing as of February 19, 2026: $780 for the SMRTFT NUOBELL 80 Adjustable Dumbbells and $429 for the BowFlex Results Series 552 SelectTech Dumbbells, a $351 difference in the BowFlex Results Series 552 SelectTech Dumbbells's favor. Owners praise the SMRTFT NUOBELL 80 Adjustable Dumbbells for traditional dumbbell shape and feel and fastest twist-and-go adjustment; the most common complaint is not drop-friendly (polymer shell). Owners praise the BowFlex Results Series 552 SelectTech Dumbbells for 15 weight settings (2.5 lb steps early) and familiar dial adjustment; the most common complaint is very bulky (16.9" x 8.3" x 9").
SMRTFT NUOBELL 80 Adjustable Dumbbells
- Traditional dumbbell shape and feel
- Fastest twist-and-go adjustment
- 5-80 lb range (highest in group)
- 32mm knurled aluminum handle
- Not drop-friendly (polymer shell)
- Only 5 lb increments
- 2-year warranty (shorter than PowerBlock)
BowFlex Results Series 552 SelectTech Dumbbells
- 15 weight settings (2.5 lb steps early)
- Familiar dial adjustment
- Includes trays
- App membership trial bundled
- Very bulky (16.9" x 8.3" x 9")
- Constant length interferes with some exercises
- 2025 CPSC recall on older 552/1090 models
Which should you buy?
The SMRTFT NUOBELL 80 Adjustable Dumbbells is the better fit for those wanting traditional dumbbell feel and advanced lifters needing 80 lbs — it is the higher-scoring pick here, chiefly for Motion Quality and Build Quality. The BowFlex Results Series 552 SelectTech Dumbbells is the better fit for those wanting fine early increments and beginners wanting recognizable brand, and the stronger choice if Value matters more to you than the overall score. If the $351 saving matters more than Motion Quality, the BowFlex Results Series 552 SelectTech Dumbbells is the better value. The SMRTFT NUOBELL 80 Adjustable Dumbbells is a poor fit for drop-set enthusiasts; the BowFlex Results Series 552 SelectTech Dumbbells is a poor fit for compact space needs.
Choose the SMRTFT NUOBELL 80 Adjustable Dumbbells if
- Those wanting traditional dumbbell feel
- Advanced lifters needing 80 lbs
- Fast weight-change workouts
Skip it if
- Drop-set enthusiasts
- Those needing 2.5 lb increments
Choose the BowFlex Results Series 552 SelectTech Dumbbells if
- Those wanting fine early increments
- Beginners wanting recognizable brand
- Those preferring dial adjustment
Skip it if
- Compact space needs
- Drop-friendly use
Common questions
Is the SMRTFT NUOBELL 80 Adjustable Dumbbells better than the BowFlex Results Series 552 SelectTech Dumbbells?
In our Adjustable Dumbbells ranking the SMRTFT NUOBELL 80 Adjustable Dumbbells scores higher overall, 7.8 to 6.7, with the biggest advantage in Motion Quality. The BowFlex Results Series 552 SelectTech Dumbbells is stronger on Value, so it is the better pick if that matters most to you.
How much more does the SMRTFT NUOBELL 80 Adjustable Dumbbells cost than the BowFlex Results Series 552 SelectTech Dumbbells?
$351 more as of February 19, 2026: $780 for the SMRTFT NUOBELL 80 Adjustable Dumbbells against $429 for the BowFlex Results Series 552 SelectTech Dumbbells. Prices move, so the merchant page shows the current figure. What the extra buys is mostly Motion Quality — 9 versus 7 in our scoring.
What is the main difference between the SMRTFT NUOBELL 80 Adjustable Dumbbells and the BowFlex Results Series 552 SelectTech Dumbbells?
The headline spec difference is Weight Range: 5-80 lbs each on the SMRTFT NUOBELL 80 Adjustable Dumbbells versus 5-52.5 lbs each on the BowFlex Results Series 552 SelectTech Dumbbells. In use, the gap that matters most is Motion Quality (9 vs 7 in our scoring): how close to traditional fixed dumbbells during lifts.