Smart Ring Sleep Tracker with Heart Rate & HRV Monitoring

The Smart Ring Sleep Tracker is a lightweight titanium-steel ring (about 3.9g) that tracks sleep stages, heart rate, HRV, blood oxygen and daily activity, and syncs to a free app on iPhone and Android. Battery life is up to 7 days and it's IP68 water resistant.

It's more comfortable to wear to bed than a smartwatch. See your deep, light and REM sleep each morning, and track steps and workouts during the day.

Key Features

• Sleep tracking: deep sleep, light sleep, REM and awake time
• Heart rate, HRV and blood oxygen: all-day wellness insights
• Activity tracking: steps, distance, running, cycling, walking, swimming and yoga
• Up to 7-day battery: charges in about 1.5 hours with the included dock
• IP68 water resistant: wear it in the shower and at the gym
• iPhone and Android: iOS 13.0+ and Android 8.0+
• Sizes 7–10: Black, Silver or Gold

Consumer wellness device, not a medical device. Blood pressure, blood sugar and cycle data are manual entries in the app, not measured by the ring.

Size Guide

Specifications

Frequently Asked Questions

Does the ring need a subscription?
No subscription is needed. It syncs with a free app on iPhone (iOS 13.0+) and Android (8.0+).

How do I choose my ring size?
Use the Size Guide above. Measure the inner diameter of a ring you already wear, or the circumference of your finger, and match it to sizes 7–10.

How long does the battery last?
Up to 7 days on a full charge, and it charges in about 1.5 hours with the included dock.

Can I wear it in the shower?
Yes. It's IP68 water resistant, so it's fine for hand washing, showers and workouts.

Is it a medical device?
No. It's a consumer wellness device. It shouldn't be used to diagnose or treat any condition.