M4 Smart Band Heart Rate Tracker Sport Watch

Charging voltage 5V Current 1A-2.1A
Charging time 2 hours-About
Standby time 7-15 days
All-day activity tracking: steps, calories burned, mileage, and heart rate.
Automatically sleep monitoring: sleep time & sleep quality.
Smart reminder: call reminder, messaging push, sedentary reminder.
More features: phone search, remote camera and stop watch.
Continuous heart rate monitor: Continuous, automatic heart rate tracking right on your wrist per second.
0.96″ TFT Color touch screen: HD screen, easy to read all fitness data.
Customizable clock faces
Bluetooth 4.0, compatible with Android 4.4 and above system, iOS 8.0and above system.
Bracelet push support language: Chinese and English
APP support language: English, Chinese
USB direct charge (This smart-band doesn’t need a charging cable, just pull band out, you will find a USB interface.)
Dimensions: 14x8x5cm (LxWxH)
Weight: 50g
Package Included:
1 x Smart bracelet
1 x USB Charger
1* Manual