Dimensions44.4 x 43.3 x 9.8 mm (1.75 x 1.70 x 0.39 in)
Weight33.5 g (44mm), 28.7 g (40mm) (1.02 oz)
BuildGlass front (Sapphire crystal), aluminum frame
SIMeSIM
MIL-STD-810H compliant*50m water resistant (IP68)Compatible with standard 20/22mm strapsECG certifiedBlood pressure monitorArmour aluminum frame with tougher drop and scratch resistance (advertised)*does not guarantee ruggedness or use in extreme conditions
display
TypeSuper AMOLED
Size1.4 inches
Resolution450 x 450 pixels (~321 ppi density)
ProtectionSapphire crystal
Always-on display
platform
OSAndroid Wear OS 3.5, One UI Watch 4.5
ChipsetExynos W920 (5 nm)
CPUDual-core 1.18 GHz Cortex-A55
GPUMali-G68
memory
Card slotNo
Internal16GB 1.5GB RAM
camera
No
sound
LoudspeakerYes
3.5mm jackNo
comms
WLANWi-Fi 802.11 a/b/g/n, dual-band
Bluetooth5.2, A2DP, LE
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
NFCYes
RadioNo
USBNo
features
SensorsAccelerometer, gyro, heart rate, barometer
Natural language commands and dictationSamsung Pay