1. Material: ABS+PU+stainless steel 2. Band width: 26mm 3. Maximum wrist circumference: 24cm 4. Battery type: CR2450 5. Waterproof level: 50m 6. Bluetooth reminder: incoming call/sms/social chat/email 7. Pedometer: Calories/Mileage/Steps 8. Sports management: goal setting/completion ratio/sports recording and analysis 9. Smart alarm clock: The alarm clock set by the mobile phone is synchronized to the watch 10. Support remote control camera, Bluetooth one-button synchronization, stopwatch function