Product Benefits
Check your Blood Pressure. Skip the cuff.
Ring One 2.0 measures blood pressure from your finger. Take a reading whenever you want it, wherever you are, and build a picture over time.
Know exactly how you slept.
Ring One 2.0 tracks your sleep stages, HRV and resting heart rate through the night, then gives you a sleep score, restorative versus disturbed time and your REM cycles every morning.
Train hard. Know what it cost you.
Ring One 2.0 tracks day strain, heart rate zones and calorie burn through every session, then measures how fast your heart rate drops afterwards. You see what the workout took out of you and how quickly you got it back.
Notice stress before you feel it.
Ring One 2.0 tracks physiological stress through the day and shows you when it peaked. Start a mindfulness session and it measures your HRV from start to finish, so you see whether the session actually settled you or not.
See your cycle in your own signals.
Ring One 2.0 reads skin temperature, stress and HRV overnight and maps them against your cycle. You see which phase you're in from what your body is actually doing, not from a count of days on a calendar.
Leave your wallet at home.
Tap your ring at any contactless payment terminal. No phone required. Live in EU and UK. US Activation underway.
Activate your ring as a Tesla key card.
Walk up, touch the B-pillar with your ring, it unlocks.
Ask your ring why withRIO-AI
Small apps that run on your live data.
Why a ring.
Product Showcase
Four Finishes. One Ring. All Yours.
Available in sizes 6-15.Free sizing kit shipped before your ring.
Redesigned charging case