{"product_id":"r10-smart-ring-heart-rate-blood-oxygen-body-temperature-pressure-sleep-health","title":"R10 Smart Ring — Sleep, Recovery \u0026 Heart Rate Tracker","description":"\u003cp\u003e\u003cstrong\u003eTrack sleep like you mean it.\u003c\/strong\u003e The R10 Smart Ring is a lightweight titanium smart ring built to disappear on your hand while it keeps watch over your sleep, recovery, and stress — no charging pad on your nightstand, no strap to fuss with.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Tracks\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSleep stages: deep sleep, light sleep, REM, and awake time, plus sleep coaching insights\u003c\/li\u003e\n\u003cli\u003eHeart rate, heart rate variability (HRV), estimated blood oxygen, and body temperature\u003c\/li\u003e\n\u003cli\u003eDaily activity: steps and general movement, synced through the companion app\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ring also lets you manually log blood pressure for a fuller picture alongside its automatic tracking — this is a self-reported entry, not a ring-measured reading.\u003c\/p\u003e\n\n\u003ch3\u003eBuilt to Disappear on Your Hand\u003c\/h3\u003e\n\u003cp\u003eFinger-worn design available in Black, Silver, and Gold, in sizes 7 through 14. 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