NETWORK Technology BODY Dimensions 46.5 x 46.5 x 10.9 mm (1.83 x 1.83 x 0.43 in) Weight 59 g (47mm), 52 g (43mm) (2.08 oz) Build Sapphire crystal front, stainless steel frame SIM eSIM MIL-STD-810H compliant* 50m water resistant (IP68) ECG certified Blood pressure monitor Compatible with standard 20mm straps *does not guarantee ruggedness or use in extreme conditions DISPLAY Type Super AMOLED Size 1.5 inches Resolution 480 x 480 pixels (~453 ppi density) Protection Sapphire crystal Always-on display PLATFORM OS Android Wear OS 4, One UI Watch 5 Chipset Exynos W930 (5 nm) CPU Dual-core 1.4 GHz Cortex-A55 GPU Mali-G68 MEMORY Card slot No Internal 16GB 2GB RAM CAMERA No SOUND Loudspeaker Yes 3.5mm jack No COMMS WLAN Wi-Fi 802.11 a/b/g/n, dual-band Bluetooth 5.3, A2DP, LE Positioning GPS, GLONASS, GALILEO, BDS NFC Yes Radio No USB No FEATURES Sensors Accelerometer, gyro, compass, heart rate, barometer, thermometer (skin temperature), 3D Hall sensor Natural language commands and dictation Samsung Pay BATTERY Type Li-Ion 425 mAh, non-removable Charging Wireless (Qi)