An honest health-tracker comparison
Before you buy Amazfit Helio Strap
Two wrist-worn approaches to everyday health tracking. Compare Amazfit Helio Strap's screen, battery and software model with Ray's quiet, light-powered design.
The short answer
Choose Amazfit Helio Strap if you want a lower-cost screen-free band in the Zepp ecosystem. Choose Ray if your priority is a quiet, screen-free tracker that avoids both a charging ritual and a required subscription.
The useful differences
Side by side.
Specs are manufacturer claims and US pricing snapshots, not lab-test results. A blank promise is less useful than a clear tradeoff, so we keep this list deliberately practical.
| What changes | Chargerless Ray | Amazfit Helio Strap |
|---|---|---|
| Format | Screen-free wristband | Screen-free fitness band |
| Power | Light powered; no charging routine | Rechargeable; up to 10 days |
| Screen | None | None |
| US price | $199 silver / $229 gold | $99.99 |
| Required subscription | None | None for core features |
| Core tracking | Sleep, heart rate, HRV, temperature, steps and light exposure | Sleep, recovery, exertion, HR and HRV |
Choose by priority
Neither wins every category.
The best tracker is the one whose compromises fit your life—and that you will actually keep wearing.
Ray's case
No cable. No screen. No subscription.
Ray replaces periodic cable charging with light and offers jewelry-style bands.
Amazfit Helio Strap's case
Pick it for what Ray leaves out.
Helio Strap costs less and pairs neatly with Amazfit watches.
Research note. Competitor facts were checked against Amazfit Helio Strap product page on August 20, 2026. Prices, promotions, regional features and announced-product timelines can change. Ray details reflect the current Chargerless product page. Neither product is a substitute for medical care.
Wear your health. Not a charger.
Ray tracks the essentials in a 7-gram bracelet powered by light. Silver starts at $199. Gold starts at $229. No required subscription.
See Ray optionsBrowse all 28 comparisons