Multifunctional smart ring: Excellent "finger" tip, health with "heart", blood oxygen monitoring,heart rate monitoring,sleep monitoring,step counting,10 days of ultra-long battery life, light and non-feeling wear,IP68 waterproof camera control,multi-sports mode smart ring, on the ring: all-weather intelligent monitoring, integrate health into your , multi-dimensional health monitoring, life does not stop exploring 24-hour health monitoring, protect : wear it on your hand, you can directly monitor your heart rate, blood oxygen, etc., and understand your physical health at any time. It also has multi-dimensional health management functions such as sleep monitoring to improve level in all aspects. Sleep monitoring records complete sleep structure: understand your own sleep status, light sleep, and deep sleep during the entire sleep period. Good sleep habits lead to better health. Download the mobile phone APP to view monitoring data in real time: you need to connect to the ring through the mobile phone Bluetooth, keep Bluetooth turned on, and the Bluetooth automatically connect when the App is started. When the mobile phone is not connected, the ring can also perform body monitoring independently, record blood oxygen and heart rate status, and update data in the App after connection. Colour:Silver Material:Metal Package Contents: 1 * tracker 1 * charging bin Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.