Network/Bearer :
Infra : Bluetooth, Wi-Fi
Connectivity :
Location Technology : GPS,Glonass,Beidou,Galileo
Wi-Fi : 802.11 a/b/g/n 2.4+5GHz
NFC : Yes
Bluetooth Version : Bluetooth v5.0
Bluetooth Profiles : A2DP,AVRCP,HFP,HSP
OS : Wear OS Powered by Samsung
Display :
Technology (Main Display) : Super AMOLED
Size (Main Display) : 1.4" (34.6mm)
Resolution (Main Display) : 450 x 450
Color Depth (Main Display) : 16M
Processor :
CPU Speed : 1.18GHz
CPU Type : Dual-Core
Memory :
RAM Size (GB) : 1.5
ROM Size (GB) : 16
External Memory Support : N/A
Available Memory* (GB) : 7.6
Sensors : Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor
Physical specification :
Dimension (HxWxD) : 44.4 x 43.3 x 9.8 mm
Weight : 30.3 g
Battery :
Battery Capacity (mAh, Typical) : 361
Removable : No
Typical Usage Time (Hours) : up to 40 Hours

Samsung Galaxy Watch4 Bluetooth (44mm) - Black (SM-R870NZKAXSA), 1.4' Super AMOLED Display, 1.5 GB RAM/ 16 GB ROM