ZEBLAZE smartwatch Swim 1.69" GPS heart rate 5 ATM black

Bluetooth version: BLE 5.0
Smartphone Compatability: Android 4.4 or iOS 8.2 and above
Display size: 1.69"
Display resolution: 240 x 285 pixels, 218 PPI
Glass material: Corning® Gorilla® Glass
Touch screen: Yes
Always on display: No
Battery capacity: 300 mAh
Standby time in power-save mode: up to 30 days
Training time in power-save modes: up to 15 days
Training time with full GPS and HR tracking enabled: up to 56 hours
Charging time: 1.5 hours
GPS: Integrated GPS, GLONASS, GALILEO, BEIDOU, Assisted GPS with fast fix times
Movement: 3-Axis Accelerometer and 3-Axis Gyroscope
Health: Wrist Heart Rate Monitor, Pulse Ox Blood Oxygen Saturation Monitor
Water resistance: 5 ATM (WR50)
Dimensions: Width: 37.5 x 44 x 11.4 mm
Weight: 36 g, Without wristband: 22.8 g
Case Material: Plastic
Button material: Aviation aluminum
Buckle material: Plastic
Wristband: 22 mm
Wrist circumference: 130-220 mm