Specifications

Galaxy Watch (42mm)
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VS.
Galaxy Watch 3 (41mm)
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VS.
Galaxy Watch (46mm)
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VS.
Galaxy Watch 3 (45mm)
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General Information
Model NameGalaxy Watch (42mm)Galaxy Watch 3 (41mm)Galaxy Watch (46mm)Galaxy Watch 3 (45mm)
Model typeWearableWearableWearableWearable
ColorsBlack (Black)
Rose Gold (Rose Gold)
Silver (Silver)
Bronze (Bronze)
Silver (Silver)Silver (Silver)
Black (Black)
Titanium (Titanium)
Announced2018, August2020, July2018, August2020, July
Released2018, August2020, August2018, August2020, August
Physical specifications
DimensionsWatch: 41.9 x 45.7 x 12.7 mmWatch: 42.5 x 41.0 x 11.3 mmWatch: 46 x 49 x 13 mmWatch: 46.2 x 45.0 x 11.1 mm
Weights49g48.2g63g53.8g
43g
IP rating5ATM + IP68 / MIL-STD-810G5ATM + IP68 / MIL-STD-810G5ATM + IP68 / MIL-STD-810G5ATM + IP68 / MIL-STD-810G
Operating system
Operating systemTizen Based Wearable OS 4.0Tizen Based Wearable OS 5.5Tizen Based Wearable OS 4.0Tizen Based Wearable OS 5.5
Networks
Networks3G
4G
4G3G
4G
4G
eSIM supportYesYesYesYes
Display
KindMain Display
TechnologyCircular Super AMOLEDCircular Super AMOLEDCircular Super AMOLEDCircular Super AMOLED
Size1.2 inch / 30.48 mm1.2 inch / 30.2 mm1.3 inch / 33.02 mm1.4 inch / 35.56 mm
Resolution / 360x360 pixels / 360x360 pixels / 360x360 pixels / 360x360 pixels
Pixel density278 PPI278 PPI
Processors
Related model number(s)SM-R810SM-R850SM-R800SM-R840
 SM-R815
SM-R855
SM-R805
SM-R845
ChipsetExynos 9110Exynos 9110Exynos 9110Exynos 9110
Clock SpeedDual-Core @ 1.15 GHzDual-Core @ 1.15 GHzDual-Core @ 1.15 GHzDual-Core @ 1.15 GHz
CoresDual-CoreDual-CoreDual-CoreDual-Core
GPUMali-T720Mali-T720Mali-T720Mali-T720
Memory
RAM/ROM sizes768 MB RAM with 4 GB ROM

1.5 GB RAM with 4 GB ROM
1 GB RAM with 8 GB ROM
768 MB RAM with 4 GB ROM

1.5 GB RAM with 4 GB ROM
1 GB RAM with 8 GB ROM
Sensors
AccelerometerYesYesYesYes
Ambient LightYesNoYesNo
BarometerYesYesYesYes
Electrical Heart sensorNoYesNoYes
Gyro sensorYesYesYesYes
HRMYesNoYesNo
Light SensorNoYesNoYes
Optical Heart Rate sensorNoYesNoYes
Connectivity
Location technologyGPS
Glonass
BeiDou
GPS
Glonass
Galileo
GPS
Glonass
BeiDou
GPS
Glonass
Galileo
Wi-FiYesYesYesYes
NFCYesYesYesYes
Bluetooth Version4.25.04.25.0
Battery
Standard battery capacity270mAh247mAh472mAh340mAh
Removable batteryNoNoNoNo
Wireless fast chargingYes