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Smart ring activity tracker Ultrahuman Ring AIR — Titanium, Size 10, 24 mAh LiPo, up to 6 days battery
Summary description:
Ultrahuman Ring AIR is a smart ring activity and sleep tracker in a round titanium form factor, designed for men and women. It features a 24 mAh LiPo battery with up to 6 days of runtime, heart-rate and sleep monitoring, and compatibility with Android (8.0–13) and iOS (15–16). Includes USB‑C to USB‑C cable and offers standard app features without a fee.