Bowflex SelectTech 552 Adjustable Dumbbells vs Onnit Primal Kettlebell (16kg) (2026)
Which is better? We compared both on score, owner ratings, pros and cons.
Bowflex SelectTech 552 Adjustable Dumbbells
Replaces 15 pairs of dumbbells. Turn the dial, pick 2.5–24kg in 2 seconds.
Check Price ↗ Full Review
Onnit Primal Kettlebell (16kg)
Competition-spec cast iron. Flat base. The most popular single kettlebell for home training.
Check Price ↗ Full ReviewAt a Glance
| Bowflex SelectTech 552 Adjustable Dumbbells | Onnit Primal Kettlebell (16kg) | |
|---|---|---|
| 247Verdict Score | 9.2/10 | 9.0/10 |
| Owner Rating | 4.7★ (26,200) | 4.8★ (6,200) |
| Verdict | Excellent | Excellent |
Quick Verdict
Both are strong choices, but the Bowflex SelectTech 552 Adjustable Dumbbells edges ahead with a 9.2/10 vs 9.0/10. Replaces 15 pairs of dumbbells. Turn the dial, pick 2.5–24kg in 2 seconds. That said, the Onnit Primal Kettlebell (16kg) is worth considering if Competition-spec cast iron. Flat base. The most popular single kettlebell for home training..
Pros & Cons Side by Side
Bowflex SelectTech 552 Adjustable Dumbbells
- Replaces 15 dumbbell sets (2.5–24kg) in footprint of one pair
- 2-second dial adjustment — no fumbling between sets
- Compact storage tray included
- 10-year track record of reliability
- 25 weight settings covers virtually all home strength training
- Longer than standard dumbbells — some floor exercises feel awkward
- Not designed for dropping — unlike fixed iron
- 24kg upper limit insufficient for advanced lifters
Onnit Primal Kettlebell (16kg)
- Competition-specification dimensions — consistent feel across all weights
- Flat base for push-up variations and renegade rows
- Single-piece casting with no welds or seams that catch on calluses
- Powder-coated finish prevents rust and provides grip without chalk
- 16kg is the ideal starting weight for most adults' first kettlebell
- Single fixed weight — need multiple bells as strength progresses
- Premium brand pricing vs generic cast iron alternatives
- The primate face design is polarising aesthetically
FAQ
Which is better, Bowflex SelectTech 552 or Onnit Primal Kettlebell (16kg)?
Both are strong choices, but the Bowflex SelectTech 552 Adjustable Dumbbells edges ahead with a 9.2/10 vs 9.0/10. Replaces 15 pairs of dumbbells. Turn the dial, pick 2.5–24kg in 2 seconds. That said, the Onnit Primal Kettlebell (16kg) is worth considering if Competition-spec cast iron. Flat base. The most popular single kettlebell for home training..
Is the Bowflex SelectTech 552 worth the extra cost?
Yes — Bowflex SelectTech 552 Adjustable Dumbbells scores higher at 9.2/10 vs 9.0/10.
Also Worth Considering
Wattbike Atom (Next Gen) Smart Bike
0-2500W resistance, ERG mode, accurate power meter, Zwift optimised. Professional training bike.
Check Price ↗ Full Review
Rogue Echo Bike
Unlimited air resistance, full-body fan bike, steel construction, LCD console, CrossFit standard.
Check Price ↗ Full Review
Theragun Pro 5th Generation
16mm amplitude percussion therapy. Used by professional sports teams. The recovery standard.
Check Price ↗ Full Review