Speifications:

Diameter of dial plate     43mm
Thickness of watch     12.6mm(form the case back to the screen)
Weight      About 46g
Screen     1.30” AMOLED
Resolution 360*360
Corning Gorilla 3 tempered Glass + anti-fingerprint coating
Type of Watch Band     Silicon +PC
Watch band craft     Clean treatment
Length of watch band     70mm+113mm
CPU     1.2GHz dual-core processor
RAM      512MRAM
Flash memory     4GB built-in Flash memory (about 1.9GB available for users)
Sensor     Optical Sensor
Acceleration sensor
Gyroscope
Geomagnetic sensor
Air pressure sensor
Audio     Microphone and speaker
GNSS satellite positioning      GPS+GLONASS
Connection     Bluetooth 4.2BLE+BR/EDR
Wifi     2.4GHz 802.11b/g
Battery     390mAh lithium polymer battery
Battery charge time     2.5hours
Battery life     More than 5 days in a typical usage scenario
Surface material     Glass fiber reinforced polycarbonate
Waterproofing grade     IP68
Operating system     Amazfit OS operating system (Based on Android system )
Supported equipment     Support mobile phones based on Android 4.4 or IOS 9.0 or above
Accessories
A dedicated USB charging base. an instruction manual and a three guarantee certificate .