Amazfit GTS
Tech specs 
Size43.25 x 36.25 x 9.4mm
20mm strap
MaterialMetal, polymer matrial, soft silicone strap
ChargingUSB, Magnetic charging
Battery220mAh lithium ion
Battery life7 days in normal mode, 20 days in basic watch mode and 20 hours with GPS switched on.
Water-resistanceUp to 50 metres (5 ATM)
Weight24.8 grams (without strap)
SensorGPS/Glonas, Bio Tracker PPG Bio Tracking Optical Sensor, 6-Axis Accelerometer, 3-Axis Geomagnetic Sensor, Air Pressure Sensor, Ambient Light Brightness Sensor, NFC.
DisplaySuper Retina Grade AMOLED Screen (resolution 341ppi); 100% NTSC colour gamut; 2.5D Corning Gorilla Glass 3 protected.
Screen size1.65 inch
ColorsSix colours
OtherPLATFORM: Amazfit OS
MEMORY: 4GB internal storage, 512 MB RAM
CONNECTIVITY: Bluetooth 5.0
Activity tracking 
Calories burnedYes
Heart rateYes
Stress & recovery
Pulse Ox
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
Running features
Swimming featuresSWOLF, pace, stroke detection
Other - alerts for arrhythmia and atrial fibrillation
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected payYes
Affiliate link*Amazon
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