Keep track of your exercise and sleep
Silvercrest SAT 70 Activity Tracker, a fashionable, colorful, super thin sport band.
1. can count the step, calorie, distance and time.
2. Record sleep status, time of deep sleep and light sleep as well as times of being awake
3. Detect UV strength, and help with sun screen and protect skin
4. call and message alert, lest missing the appointment
5. track your activity
