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    Galaxy Watch (42mm) vs Galaxy Watch 3 (41mm) vs Galaxy Watch (46mm) vs Galaxy Watch 3 (45mm)

    SamsungGalaxy Watch (42mm)

    SamsungGalaxy Watch 3 (41mm)

    SamsungGalaxy Watch (46mm)

    SamsungGalaxy Watch 3 (45mm)

    General Information

    • Model Name

      Galaxy Watch (42mm)

      Galaxy Watch 3 (41mm)

      Galaxy Watch (46mm)

      Galaxy Watch 3 (45mm)

    • Model type

      Wearable

      Wearable

      Wearable

      Wearable

    • Colors

      Black (Midnight Black)
      Rose Gold (Rose Gold)

      Silver (Mystic Silver)
      Bronze (Mystic Bronze)

      Silver ()

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

    • Announced

      2018, August

      2020, July

      2018, August

      2020, July

    • Released

      2018, August

      2020, August

      2018, August

      2020, August

    Physical specifications

    • 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

    • 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

    • Networks

      3G
      4G

      4G

      3G
      4G

      4G

    • eSIM support

      Yes

      Yes

      Yes

      Yes

    Display

    • Kind

      Main Display

    • 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

    Processors

    Memory

    • 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

    Sensors

    • 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

    Connectivity

    • 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

    Battery

    • Standard battery capacity

      270mAh

      247mAh

      472mAh

      340mAh

    • Removable battery

      No

      No

      No

      No

    • Wireless fast charging

      Yes