Waterproof 3G Android 5.1 Smart Watch Quad Core Bluetooth 4.0 Heart Rate Monitor GPS

Screen Size: 1.3''/IPS /OLED(EXP)/360*360
CPU: MTK6580,1.3G Quad core
RAM:1G
ROM Flash:8G
OS: Android5.1 / Co processor
GSM: GSM/850/900/1800/1900
GPS: YES
Positioning system: GPS+WIFI
Strap: Silicon band
Speaker: YES
Vibration : Yes
MIC : Yes
Heart rate: Yes
Sleep monitor: YES
Pedometer: YES
G-sensor: YES
Watch off remind: Light-sensor
Bluetooth: BLE4.0
Radiation: National standard, low radiation
Card specification : Nano SIM card
Watch proof: Daily life water-proof and dust-proof,IP65