Ray or Evie Ring?
A smart ring designed around women's health, compared with Ray.
Evie is a $269 smart ring designed around women's health, including menstrual-cycle context. Its open-gap design can adjust to fingers that swell or shrink, and it needs no subscription. It was listed as out of stock when we checked. It charges every four or more days. Ray is a wristband that powers itself from light.

The short answer
Choose Evie if women's health insights and an adjustable ring fit matter most to you. Choose Ray if you'd rather wear a band and never charge it.
Evie Ring status: Listed, currently out of stock.
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 | Evie Ring |
|---|---|---|
| Format | Screen-free wristband | Smart ring designed for women |
| Power | Light powered; no charging routine | Rechargeable; 4+ days with charging case |
| Screen | None | None |
| US price | $219 silver / $249 gold | $269 |
| Required subscription | None | None |
| Core tracking | Sleep, heart rate, HRV, temperature, steps and light exposure | Sleep, activity, HR, HRV, temperature and menstrual-cycle context |
Still weighing fitness trackers? Read what to look for in a tracker you'll want to wear every day.
Neither wins every category
The best tracker is the one whose compromises fit your life—and that you will actually keep wearing.
Why choose Ray
Ray is platform-neutral in its positioning and never needs dock time.
Why choose Evie Ring
Evie is tailored around women's health and its open design can handle finger-size fluctuation.
Research note. Competitor facts were checked against Evie Ring 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 $219. Gold starts at $249. No required subscription.
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