Honor Watch 4BODY:Dimensions:45.3 x 39.1 x 11.2 mm (1.78 x 1.54 x 0.44 in)Weight:32 g (1.13 oz)Build:Glass front, plastic back, plastic frameSIM:eSIM :5ATM water resistant (50m waterproof)DISPLAY:Type:AMOLEDSize:1.75 inchesResolution:390 x 450 pixels (340 ppi density)PLATFORM:OS:MagicOS 7.2MEMORY:Card slot:NoInternal:4GB 32MB RAMCAMERA: :NoSOUND:Loudspeaker:Yes3.5mm jack:NoCOMMS:WLAN:NoBluetooth:5.2, LEPositioning:GPS, GLONASS, GALILEO, BDS, QZSSNFC:YesRadio:NoUSB:NoFEATURES:Sensors:Accelerometer, gyro, heart rate, SpO2BATTERY:Type:Li-Ion 451 mAh, non-removable