Ray vs. Ultrahuman Ring PRO
Ultrahuman's newest ring costs $479. Ray takes a different approach for less.
Ultrahuman Ring PRO is the company's newest smart ring, at $479. Like Ring AIR, its core features need no subscription, with optional paid PowerPlugs. Ultrahuman's store doesn't list a battery-life figure for it. Ray costs less, is worn on the wrist and powers itself from light.

The short answer
Choose Ring PRO if you want Ultrahuman's latest ring hardware and app. Choose Ray if you want a lower price, a band instead of a ring and no charging routine.
Ultrahuman Ring PRO status: Currently sold.
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 | Ultrahuman Ring PRO |
|---|---|---|
| Format | Screen-free wristband | Smart ring |
| Power | Light powered; no charging routine | Rechargeable; current store gives no battery-life figure |
| Screen | None | None |
| US price | $219 silver / $249 gold | $479 |
| Required subscription | None | None for core features; paid PowerPlugs optional |
| Core tracking | Sleep, heart rate, HRV, temperature, steps and light exposure | Sleep, movement, recovery, HR, HRV and temperature |
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 costs less, leaves fingers free and removes dock charging.
Why choose Ultrahuman Ring PRO
Ring PRO packages Ultrahuman's latest ring hardware in a compact form.
Research note. Competitor facts were checked against Ultrahuman US store 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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