This app works with CHAKRA series smart rings and tracks your activities like steps, distance, calories, heart rate & monitors sleep. ●Professional sleep analysis: The smart ring will detect health parameters during sleep, those data will help you better understand your sleep behaviors. ●Professional heart health consultant: A high-precision and high-performance heart rate sensor obtains data accurately and can monitor your heart activity 24 hours a day. ●Free activities: The App provides dozens of sports: GPS sports, indoor, outdoor, etc. Wear the ring to exercise and you can view and record your sports data. ●Capture every heartbeat information: Heart health research has been furthered. Through heart rate variability data you can understand the degree of heart health. ●Caring about stress: the ring as your constant companion ●non-medical use, only for general fitness/wellness purpose