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General Information
Model Name
Galaxy Watch (46mm)
Galaxy Watch 3 (41mm)
Model type
Wearable
Wearable
Colors
Silver ()
Silver (Mystic Silver)Bronze (Mystic Bronze)
Announced
2018, August
2020, July
Released
2018, August
2020, August
Physical specifications
Dimensions
Watch: 46 x 49 x 13 mm
Watch: 42.5 x 41.0 x 11.3 mm
Weights
63g
48.2g
IP rating
5ATM + IP68 / MIL-STD-810G
5ATM + IP68 / MIL-STD-810G
Operating system
Operating system
Tizen Based Wearable OS 4.0
Tizen Based Wearable OS 5.5
Networks
Networks
3G4G
4G
eSIM support
Yes
Yes
Display
Kind
Main Display
Technology
Circular Super AMOLED
Circular Super AMOLED
Size
1.3 inch / 33.02 mm
1.2 inch / 30.2 mm
Resolution
/ 360x360 pixels
/ 360x360 pixels
Pixel density
278 PPI
Processors
Memory
RAM/ROM sizes
768 MB RAM with 4 GB ROM1.5 GB RAM with 4 GB ROM
1 GB RAM with 8 GB ROM
Sensors
Accelerometer
Yes
Yes
Ambient Light
Yes
No
Barometer
Yes
Yes
Electrical Heart sensor
No
Yes
Gyro sensor
Yes
Yes
HRM
Yes
No
Light Sensor
No
Yes
Optical Heart Rate sensor
No
Yes
Connectivity
Location technology
GPSGlonass
BeiDouGPSGlonassGalileo
Wi-Fi
Yes
Yes
NFC
Yes
Yes
Bluetooth Version
4.2
5.0
Battery
Standard battery capacity
472mAh
247mAh
Removable battery
No
No
Wireless fast charging
Yes