SelectTech 552i Review

Fast, space‑saving adjustable dumbbell that replaces 15 pairs and suits most home lifters — great if you want quick dial changes and JRNY coaching; skip it if you need heavier than 24 kg or a low‑profile shape.

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The quick answer

Price: £173.68 • Score: 8.2/10

Buy this if you want a quick, space-saving way to cover most home strength workouts and value fast weight changes and app guidance. Skip it if you regularly lift heavy doubles above 24 kg or need a low-profile, slim dumbbell for pressing — this feels bulky and tops out too low.

What we tested

We used a single SelectTech 552i (2–24 kg) for six weeks in a small home studio, through HIIT circuits, supersets and straight strength sessions. Tests focused on speed of change, noise, carry‑over to common lifts (press, row, squat) and everyday storage in tight space.

What it does well

Quick dial selector — change weights in seconds

The handset switches across 15 increments with Bowflex’s dial system, so you lose almost no time between sets compared with pin‑style adjustables; this keeps circuits and supersets moving.

Fine weight steps (15 increments, 2–24 kg)

Small jumps let you increase load gradually, which is useful for safe progression from warm‑ups to intermediate lifts without buying extra plates.

Space saving footprint (43 × 21.2 × 22.8 cm)

One 552i replaces up to 15 traditional dumbbells and removes the need for a rack, freeing floor space in small flats and studios.

Reduced clanging, quieter use

Moulded plate shells dampen noise versus exposed steel plates, so early or late sessions in shared buildings are less disruptive.

JRNY app trial and guidance

Two months of JRNY access is bundled for guided workouts and adaptive plans — handy if you want structured programming without hunting for a coach.

Where it falls short

Bulky shell interferes with close‑grip pressing and chest work

The moulded plate shape makes the head wider than standard iron dumbbells; users with longer arms or who do frequent floor/bench presses will find it awkward.

24 kg limit per dumbbell

Tops out at 24 kg, which is fine for most beginners and many intermediates but too low for lifters who regularly use heavy doubles for presses, rows or farmer carries.

Sold as a single unit

You must buy a second 552i if you want a matched pair; that doubles cost and space impact compared with single‑purchase rivals that ship as pairs.

How it compares

Closest competitor at this price is the PowerBlock Sport 24 (around £170–£180 in the UK). Choose the SelectTech 552i if you prioritise ultra‑fast dial changes, quieter moulded plates and a bundled app; pick the PowerBlock if you want a slimmer, block‑style head that sits better for bar‑style presses and saves wrist clearance on chest work.