Display
Material: AMOLED
Size: 1.75″
Resolution: 390×450
PPI: 341
Touchscreen: Tempered glass + anti-fingerprint coating
Sensors
Health: BioTracker 4.0 PPG biometric sensor (supports blood-oxygen, 4PD + 2LED)
Movement: Acceleration sensor, Gyroscope sensor, Geomagnetic sensor, Barometric altimeter, Ambient light sensor
Positioning: Dual-band & 6 satellite positioning systems
Connection: WLAN 2.4GHz, Bluetooth 5.0 & BLE
Dimensions: 42.7×36.5×9.9mm (without heart rate base)
Weight (with strap): 27g
Body Material: Aluminum alloy middle frame high-gloss sprayed PC bottom shell
Buttons: 1
Water-resistance Grade: 5 ATM
Battery
Battery Capacity: 300 mAh (rated value)
Charging Method: Magnetic charging
Theoretical Charging Duration: Approx. 2 hours
Typical Usage Scenario Battery Life: Up to 8 days
Battery Saver Mode Battery Life : Up to 16 days
Clock Mode Battery Life : Up to 30 days
Heavy Usage Scenario Battery Life: Up to 4 days
Accuracy GPS Mode: Up to 16 hours
Balanced GPS Mode: Up to 28 hours
Power Saving GPS Mode: Up to 33 hours
Other
Microphone: Support
Speaker: Support
Motor: Linear motor
Strap
Materials: Fluoroelastomer / Nylon Quick release
Width: 20mm
Min. & Max. Wrist Dimensions: 140mm-200mm
Buckle: Classic pin buckle
Packing List: Smartwatch (including standard strap), magnetic charging cable, instruction manual
Supported Devices: Android 7.0 and above, iOS 12.0 and above
Application: Zepp App
More info: https://us.amazfit.com/products/amazfit-gts-4
