Manage your sleep health at every moment

Take care of yourself and your family

Resting Heart Rate

Resting Heart Rate, or RHR, is the number of heartbeats per minute at rest. It’s both a gauge of your heart health and a biomarker of aging, it’s one of the simplest and best measures of your health.


AHI records the number of apnea and hypopnea episodes per hour of sleep supervision in order to analyses them and determine the degree of sleep apnea severity the patient suffers from.

Toss and Turn

Tossing and turning generally occur during brief arousals from sleep during the night, it can help to evaluate insomnia, sleep cycle, drugs’ impacts on sleep, etc.

Sleep debt

Sleep debt, describes the cumulative effect of a person not having sufficient sleep. It’s important for people to understand that a large sleep debt can well lead to physical and/or mental fatigue.


Saturation of blood oxygen refers to the ratio of oxygen-saturated hemoglobin compared to all hemoglobin. The human body needs and adjusts the precise balance of oxygen in the blood.

HRV (beta)


Sleep cycle

While we’re getting sleep, our brain goes through various patterns of activity. It’s a predictable cycle that includes two basic types of sleep: rapid eye movement (REM) sleep and non-REM.

Sleep label

Sleep label will help you record your daily activities and have a thorough understanding of the impact of each activity on your sleep quality, allow you to see habits are helping you sleep.

Track your current body status

Our body changes every moment as we work, rest, or workout. When you wear the device, our high-precision sensor starts to collect data and you can check your body status from the phone.

View data from desktop

Better display and operating experience from the desktop. Using our desktop program, you can easily import data from the app.

Track your family health

By adding your family member’s account, you can keep an eye on your family member’s sleep data anytime.

Sleep label

Compare and analyze

You can record your daily activities and have a thorough understanding of the impact of each activity on your sleep quality by comparing different labels.

Multi-dimensional Data

Every data we collect is unique. Understanding the correlation among data helps to better interpret data. Thus, we created the unique “Multi-dimensional Data” section for you to understand what happens to the body every moment. For example, you can know your sleep stage, body motion, heart rate, and SpO2 trend when apnea happens.

Health Center

Auto-sync with the health center on iOS devices.

Find My Ring

Easily find the ring when it is not around.

Bio-alarm clock

Gently wake you up in your lightest sleep phase.

Airplane Mode

Turn on airplane mode when you sleep.

Functions Overview

Note: “All” refers to all platforms including iOS, Android, Desktop.
Function Description System Status
Real-time Data Show real-time heart rate / SpO2 data Android/iOS
Sleep Duration Record the length of sleep for multiple periods of sleep, and distinguish between long sleep and nap time All
Awake Status Track awake status All
REM Status Track REM (rapid eye movement) status All
Light Sleep Status Track light sleep status All
Deep Sleep Status Track deep sleep status All
AHI Track AHI (apnea-hypopnea index) All
Heart Rate Track heart rate every second during sleep All
HRV Track HRV (heart rate variability) Android/iOS Beta
Motion Data Track body motion data All
Sleep Debt Calculate sleep debt based on sleep goal Android/iOS
Sleep Goal Set sleep duration goal Android/iOS
Sleep Label Add label to manage data Android/iOS
Data Comparison Compare data based on sleep labels Android/iOS
Multi-dimensional Data Present multi-dimensional data (per minute) All
Data Export Export monthly data into CSV or download daily stats in jpg. format All
Data Import Import external data to data viewer Desktop
Family Data Add your family members and check their sleep report Android/iOS
Health Center Auto-sync with health center iOS
Bio-Alarm Clock Set smart alarm clock to wake you up at a specific time frame/sleep phase Android/iOS
Low SpO2 Alarm Wake you up when SpO2 (saturation of blood oxygen) reaches a specific value Android/iOS
Find the Device Find your device when it is not around Android/iOS
Airplane Mode Turn on airplane mode and cut Bluetooth connection Android/iOS
Discover Discover sleep articles, news, and user instructions Android/iOS

Next function?

Tell us your new function needs at any time or to learn our latest development plans.

Download now

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Better sleep, better life.

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