This app works with Wow Ring series smart rings (Wow Ring etc) 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