Amazfit Bip
Tech specs 
Size39.4 x 34.1 x 9.5 mm
MaterialPolycarbonate + Zirconia ceramics
ChargingUSB
Battery190mAh Ah lithium battery
Battery lifeUp to 45 days (typical use), 4 months (standby time), 22 hours (GPS mode).
Water-resistanceIP68
Weight31 grams or 18 grams without strap
SensorTriaxial accelerometer, geomagnetic sensor, barometer, air pressure sensor, PPG heart rate sensor, a GPS and GLONASS module and Bluetooth connectivity
DisplayReflective color display screen, protected by Gorilla Glass 3, with a resolution of 176 x 176 pixels
Screen size1.28 inch
ColorsOnyx Black, White Cloud, Kokoda Green and Cinnabar Red
Other
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
Floors
SleepYes
Heart rateYes
Stress & recovery
Pulse Ox
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPSYes
Running features
Swimming features
Other
Non-fitness functions 
Smartphone notificationsEmails, text messages, calls, calendar alerts and app notifications
On-board music storage
Connected pay
LTE
Links 
Affiliate link*Amazon | Amazfit
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