2021 NEW M4 Smart Band Fitness Tracker Watch Sport bracelet Heart Rate

2021 NEW M4 Smart Band Fitness Tracker Watch Sport bracelet Heart Rate Smart Watch Fitbit Smartband Monitor Health Wristband mi Band 4 
Specifications

Specifications    
System requirements: Android 4.4 and above, IOS 8.0 and above, bluetooth 4.0 support
Bluetooth version:    BLE 4.0
Bluetooth chip:    TLSR8266F512ET32
Battery capacity:    90mah
Standby time:    standby time will be subject to the actual measurement
Working time:    standby  time will be subject to the actual measurement
Motor:    Vibration remind
Charging interface:    PSuction-cup charger
GSensor:    SC7A20
antennas:    Fpc antenna
Function :  Screen display band (0.96 TFT)
Time,step, distance and calorie display on the screen
 Standard function (step, distance, calories)
 Sleep monitoring (sleep time, sleep quality)
 Incoming remind, Message push
 Anti-lost remind (phones beyond the scope will remind)
 Alarm clock remind
 Task remind
 Activities remind
 Moving target setting
 Moving information sharing
 SUOTA function, through the APK/APP  upgrade bracelet firmware
 APP in google play and app store
 Synchronous data to mobile applications
 Android and apple application in sync


Features
1. Made of thermoplastic elastomer, it is more comfortable to wear, black, red, blue,three colors, double-breasted design let you exercise without falling off
2. Information, call reminder, wechat etc. have vibration reminders, need to pick up answer the phone, if it is harassing the phone, you can press and hold the bracelet to hang up
3. ALL-DAY heart rate test, 7*24 hours continuous recording throughout the day
4. ALL-DAY sports record, smart step detection distance and colories
5. Freedom of choice multiple sports modes
6. Automatic sleep monitoring; with IP67waterproof performance
7. Sedentary reminder function; one button do not disturb mode
8. Anti-lost design; USB charging, easy and convenient;
Package Include
1 user manual
1 Smart Band