What is the difference between the Galaxy Watch 3 and the Galaxy Watch?

Updated : 6th November, 2026
What is the difference between the Galaxy Watches?

Samsung offers a range of different watches each with different materials and functions to accompany you on your daily routines. Read on below to compare the different models and find the best fit for you.

 

table

Galaxy Watch 46/42mm

Galaxy Watch3 45/41mm

Galaxy Watch Active2 44/40mm

GalaxyWatch 4 46/44/42/40mm

OS

Tizen Based Wearable OS 4.0

Tizen Based Wearable OS 5.5

Tizen Based Wearable OS 4.0

Wear OS Powered by Samsung

Display

1.3"(33mmm)/ 1.2"(30mm)

Super AMOLED, Corning Gorilla Glass DX+

1.4"(34mm) / 1.2"(30mm)

Super AMOLED, Corning Gorilla Glass DX

(2.5D Front + 3D Glass)

1.4"(34mm) / 1.2"(30mm)

Super AMOLED, Gorilla Glass DX+

(2.5D Front + 3D Back Glass)

1.4"(34mm) /

1.2"(30mm)

Super AMOLED, Gorilla Glass

Size / Weight

46.0 x 49.0 x 12.9 mm / 63g

41.9 x 45.7 x 12.7 mm / 49g

45.0 x 46.2 x 11.1 mm / 53.8g (Titan 43g)

41.0 x 42.5 x 11.3 mm / 48.2g

44 x 44 x 10.9T 42g [SUS] / 30g [AL]

40 x 40 x 10.9T 37g [SUS] / 26g [AL]

45.5 x 45.5 x 11 mm / 52g

44.4 x 43.3 x 9.8 mm / 30.3g

41.5 x 41.5 x 11.2 mm / 46.5g

40.4 x 39.3 x 9.8 mm / 25.9g

Memory

1.5GB + 4GB (LTE)

768MB + 4GB (BT)

1GB + 8GB

1.5 GB + 4 GB (LTE)

768 MB + 4 GB (BT)

1.5GB + 16GB

Material

Stainless Steel 316L

Stainless Steel 316L / Titanium

Stainless Steel 316L / Aluminium Series 7000

Aluminium (40mm, 44mm) / Stainless Steel (46mm, 42mm) 

Sensor

Photo Plethysmography (4PD)

Accelerometer (up to 16G)

Gyro, Barometer , Ambient Light

Photo Plethysmography (8PD)

Electrocardiogram (ECG)

Accelerometer (up to 32G)

Gyro, Barometer, Ambient Light

Photo Plethysmography (8PD)

Electrocardiogram (ECG)

Accelerometer (up to 32G)

Gyro, Barometer, Ambient Light

Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor

PUI

2 Button, Rotating Bezel

2 Button, Rotating Bezel

2 Button, Touch Bezel (No wheel)

2 Button, Digital Bezel

2 Button, Rotating Bezel (Watch 4 Classic)

Battery

470mAh (80hrs)

270mAh (45hrs)

340mAh (56hrs)

247mAh (43hrs) 

340mAh (60hrs)

247mAh (43hrs)

361mAh (40hrs)

(46, 44mm)

247mAh (40hrs) (42,40mm)

Durability

5ATM + IP68 / MIL-STD-810G

5ATM + IP68 / MIL-STD-810G

5ATM + IP68 / MIL-STD-810G

5ATM + IP68 /

MIL-STD-810G

misc

Mic, Linear Motor, Speaker

Mic, Linear Motor, Speaker

Mic, Linear Motor, Speaker

Mic, Linear Motor, Speaker

Colour

Silver (46mm), Midnight Black, Rose Gold (42mm)

Mystic Black, Mystic Silver, Mystic Bronze

Cloud Silver, Ink Gold, Aqua Black (Aluminium), Silver, Black, Gold (Stainless steel)

Black, White, Pink Gold,

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