Model Name

Galaxy Watch (42mm)

Galaxy Watch 3 (41mm)

Galaxy Watch (46mm)

Galaxy Watch 3 (45mm)

Model type

Wearable

Wearable

Wearable

Wearable

Colors

Black (Black)
Rose Gold (Rose Gold)

Silver (Silver)
Bronze (Bronze)

Silver (Silver)

Silver (Silver)
Black (Black)
Titanium (Titanium)

Announced

2018, August

2020, July

2018, August

2020, July

Released

2018, August

2020, August

2018, August

2020, August

Dimensions

Watch: 41.9 x 45.7 x 12.7 mm

Watch: 42.5 x 41.0 x 11.3 mm

Watch: 46 x 49 x 13 mm

Watch: 46.2 x 45.0 x 11.1 mm

Weights

49g

48.2g

63g

53.8g
43g

IP rating

5ATM + IP68 / MIL-STD-810G

5ATM + IP68 / MIL-STD-810G

5ATM + IP68 / MIL-STD-810G

5ATM + IP68 / MIL-STD-810G

Operating system

Tizen Based Wearable OS 4.0

Tizen Based Wearable OS 5.5

Tizen Based Wearable OS 4.0

Tizen Based Wearable OS 5.5

Networks

3G
4G

4G

3G
4G

4G

eSIM support

Yes

Yes

Yes

Yes

Technology

Circular Super AMOLED

Circular Super AMOLED

Circular Super AMOLED

Circular Super AMOLED

Size

1.2 inch / 30.48 mm

1.2 inch / 30.2 mm

1.3 inch / 33.02 mm

1.4 inch / 35.56 mm

Resolution

/ 360x360 pixels

/ 360x360 pixels

/ 360x360 pixels

/ 360x360 pixels

Pixel density

278 PPI

278 PPI

RAM/ROM sizes

768 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

Accelerometer

Yes

Yes

Yes

Yes

Ambient Light

Yes

No

Yes

No

Barometer

Yes

Yes

Yes

Yes

Electrical Heart sensor

No

Yes

No

Yes

Gyro sensor

Yes

Yes

Yes

Yes

HRM

Yes

No

Yes

No

Light Sensor

No

Yes

No

Yes

Optical Heart Rate sensor

No

Yes

No

Yes

Location technology

GPS
Glonass

BeiDou
GPS
Glonass
Galileo

GPS
Glonass

BeiDou
GPS
Glonass
Galileo

Wi-Fi

Yes

Yes

Yes

Yes

NFC

Yes

Yes

Yes

Yes

Bluetooth Version

4.2

5.0

4.2

5.0

Standard battery capacity

270mAh

247mAh

472mAh

340mAh

Removable battery

No

No

No

No

Wireless fast charging

Yes