Elemind
Pair brainwave sensing with adaptive sleep audio
Track sleep, movement, and recovery from a lightweight ring

Ultrahuman Ring AIR is a smart ring for following sleep, daily movement, and recovery patterns. Optical, motion, and temperature sensors collect measurements while the ring is worn, and a companion app turns those readings into trends and daily summaries. The ring has no display, keeping the interaction on the connected phone.
Users can review sleep duration and stages, heart-rate variability, resting heart rate, skin-temperature changes, and activity information. The app also provides prompts based on patterns in the collected data. Ring AIR connects with iPhone and Android devices, includes a charging dock, and offers several finishes and sizes. A sizing kit helps customers choose a fit before the ring is dispatched.
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