Fitness Trackers / Amazfit
Amazfit Helio Strap (2025)
A WHOOP-shaped band with no membership — the subscription trap's cheapest antidote.
Overall score 6.3/10
Pros
- + $99.99 once versus $239/year — the same screenless recovery concept without the rental model
- + Beat its own 10-day rating in independent testing, hitting 12 days
- + Zepp pushes workouts to Strava, Google Fit and Apple Health without a paid tier
- + Comfortable enough to sleep in, which is where a screenless band earns its keep
Cons
- − Automatic workout detection is unreliable — reviewers found it missed yoga entirely and invented short bike rides
- − No GPS chip and no screen: without the phone you have no pace, distance or route
- − Recovery modelling is less mature than WHOOP's, and the Zepp app is busier and less polished
- − Amazfit does not publish a documented bulk data export or a water-resistance rating
- − Proprietary magnetic charging clip with no standard alternative
Amazfit Helio Strap (2025) review: what the specs say
A WHOOP-shaped band with no membership — the subscription trap's cheapest antidote. At $99.99, Amazfit's 2025 model sits in the middle of the range — the fitness Trackers we compare run from $51.99 to $359. It scores 6.3/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Subscription Freedom at 9.5/10 — the category's trap dimension: how much of what you paid for keeps working without a membership. A 10 means nothing is paywalled; a 1 means the hardware is unusable the moment you stop paying.. The weakest is Display & Usability at 2.0/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: automatic workout detection is unreliable — reviewers found it missed yoga entirely and invented short bike rides; and no GPS chip and no screen: without the phone you have no pace, distance or route. Every specification on this page comes from Amazfit's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| GPS | None — no GPS chip. Outdoor workouts borrow the phone's GPS through the Zepp app |
| Display | None — screenless; all data is read in the Zepp app |
| Rated Battery Life | 10 days |
| What the Battery Claim Assumes | Amazfit rates 10 days with continuous HR on; Tom's Guide got 12 days in review testing. Recharge takes under 2 hours |
| Subscription Model | None. Every metric the strap produces is free forever — this is the device's entire pitch against WHOOP |
| Annual Subscription Cost | 0 $ |
| Water Resistance | Amazfit markets it as sweat- and shower-safe; a formal ATM rating was not stated in the retail listings consulted |
| ECG / AFib & FDA Status | No ECG hardware and no AFib detection |
| SpO2 Sensor | Yes — blood oxygen via the Zepp app |
| Phone Compatibility | iOS and Android via the Zepp app |
| Charger | Proprietary magnetic charging clip |
| Data Export | Zepp syncs to Strava, Google Fit and Apple Health; Amazfit does not publish a documented bulk-export format |
| Connectivity | Bluetooth |
| Material | Woven nylon strap with polymer sensor module |
| Warranty | 12 months |
Compare Amazfit Helio Strap (2025) With
Cheaper Alternative
Amazfit Bip 6 (2025) — $79.99
Premium Alternative
Polar Loop (2025) — $199.99