Amazfit T-Rex Pro smartwatch desert grey W2013OV3N

1.3" AMOLED Display, Resolution 360x360, Always-on Display, Corning Gorilla 3 tempered glass + anti-fingerprint coating, 47.7 x 47.7 x 13.5mm, Bluetooth 5.0 BLE, Battery capacity: 390mAh lithium-ion polymer battery, Battery Life: Typical use: up to 18 days; Heavy use: up to 9 days, Waterproofing grade: 10 ATM certified, Positioning: GPS, GLONASS, Galileo, BeiDou, Sensors: BioTracker™ PPG Bio-Tracking Optical Sensor , Compass, Barometric altimeter, 3-axis acceleration sensor, 3-axis gyroscope sensor, Ambient light sensor