Functions: 1.Full-day activity tracking: steps, calories burned, mileage and heart rate. 2. Call/Message reminder: Vibrate to remind you of incoming call of your phones via bluetooth connection 3. Sleep Monitor: Track and analyze your sleep quality from the moment you fall asleep, to the length of deep sleep you experience. 4. Remote Camera: Remotely control your phone camera and extend your selfie distance within 10meters 5. Blood Pressure and Blood Oxygen monitoring 6. Time & Alarm clock 7. Sedentary alert