Functions:
Sleep Tracker, Fitness Tracker, Heart Rate Tracker, Mood Tracker
Other attributes: 
Connect to mobil App, dynamic heart rate monitoring, blood oxygen monitoring, remote control gesture photography function, sleep monitoring, smart ring charging case,Adopting magnetic suction charging technology, IP68 waterprrof, waterproof depth above 300 meters.
Place of origin: Guangdong, China
Brand name: swollen
Model number: SR03