Amazfit Bip Smartwatch with All-Day Heart Rate and Activity Tracking, Sleep Monitoring, GPS, Ultra-Long Battery Life, Bluetooth, US Service and Warranty (A1608 Black);

Main Features:
● Heart rate monitor
Considerate monitor contact designed on the behind of the watch, take care of your health anytime and anywhere
● GPS + GLONASS dual positioning
Easy to find accurate position, provide you safe assurance
● Sleep monitoring
Carefully monitor your sleep quality
● Bluetooth 4.0
Connected with mobile phone App, stable, fast and super low consumption
● 1.28 inch with 2.5D Corning Gorilla Glass screen
Best suitable screen size with high definition picture displaying gives you great experience
● 3.7V / 190mAh Polymer Lithium Battery

General:
●Bluetooth Version: Bluetooth 4.0
●IP rating: IP68
●Waterproof: Yes
●Alert type: Vibration
●Bluetooth calling: Phone call reminder
●Health tracker: Heart rate monitor,Pedometer,Sedentary reminder,Sleep monitor
●Messaging: Message reminder
●Other Function: Alarm,Barometer,GPS

Screen:
●Screen: Corning Gorilla Glass Screen
●Screen resolution: 176 x 176
●Screen size: 1.28 inch
●Operating mode: Press button

Battery:
●Battery Capacity: 190mAh
●Charging Time: About 2.5hour
●Standby time: 45 days
●Type of battery: Polymer lithium battery

Material:
●Band material: Silicone
●Case material: Polycarbonate
●Shape of the dial: Rectangle

Compatability:
●Android 4.4 / iOS 8.0 and above systems