Smart M4 Fitness Band Dimension(l*w*h): 5*5*6 Inch (In)

Function: Blood pressure, heart rate, Blood Oxygen Monitors, Pedometer, Calories, Distance, Stopwatch, Sleep quality measurement, Call reminder, Alarm clock, Message calls notifications, Sedentary reminder, Remote camera control, Anti-lost, find the phone/bracelet, Water drinking reminder, Sedentary reminder, Social sharing (WeChat, Facebook, Twitter, Skype)
Calls/text reminder: It will vibrate to alert you if your phone receives a phone call, text, SNS; You will never miss a call and a message; Sedentary reminder, when you focus on your work too long, it gives you a notice to relax
All-day activity tracking: Track steps, distance, calories burned, active minutes, you can check daily activity and time on OLED display or APP
HD Display Screen and Long Standby Time: High sensitive capacitive touch screen; 0.96-inch TFT HD LCD touch screen, there have four different operation interface for you to change, Resolution ratio: 128x64 pixel; 380MAH polymer lithium battery, standby time up to 180 hours after 1.5 hours fully charged.