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Samsung Galaxy Watch8 (40mm) vs Samsung Galaxy Watch 3 (45mm)

Samsung Galaxy Watch8 (40mm) vs Samsung Galaxy Watch 3 (45mm) comparison

Show Only Differences Highlight Differences	Samsung Galaxy Watch8 (40mm)	Samsung Galaxy Watch 3 (45mm)
key specs
Strap Colour	Graphite, Silver	-
Compatible OS	Android and iOS	Android, iOS
Display Type	Super AMOLED	Super AMOLED
Display Size	-	45mm
Strap Material	-	Leather
Dial Shape	-	Round
general
Brand	Samsung	Samsung
Model	Galaxy Watch8 (40mm)	Galaxy Watch 3 (45mm)
Release date	July 9, 2025	August 5, 2020
Model Name	Samsung Galaxy Watch 8	Galaxy Watch 3 (45mm)
Dial Colour	Black	Mystic Black, Mystic Bronze, Mystic Silver
Strap Colour	Graphite, Silver	-
Size	Regular	-
Water Resistant	Yes	5ATM + IP68
Water Resistance Depth	IP68	50
Usage	Regular	-
Dial Shape	-	Round
Strap Material	-	Leather
Touchscreen	-	Yes
Dial Material	-	Stainless Steel, Titanium
dimensions
Width	40.4	45
Height	42.7	46.2
Thickness	8.6	11.1
Weight (g)	30.00	53.80
product details
Battery Type	325	-
Sensor	-	Accelerometer, Barometer, Gyro Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical Heart Sensor
Compatible Device	-	Android 5.0 or later and with more than 1.5GB of RAM, iPhone 5 or later models with iOS 9.0 or later
Notification	-	Yes
Charger Type	-	Wireless
Rechargeable Battery	-	Yes
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.3	5.0
GPS	Yes	Yes
Wi-Fi	-	Yes
Other Connectivity Features	-	Wi-Fi b/g/n, NFC, Glonass, Beidou, Galileo
platform and storage features
Operating System	Watch OS	Tizen based Wearable OS 5.5
Compatible Operating System	Android and iOS	Android, iOS
RAM	2GB	1GB
Processor Name	Exynos W1000	Exynos 9110
Internal Memory	32GB	8GB
Number of Cores	-	dual-core
camera and display features
Display Type	Super AMOLED	Super AMOLED
Display Resolution	-	360 x 360
Display Size	-	45mm
Scratch Resistant	-	Corning Gorilla Glass DX
fitness and watch functions
Step Count	-	Yes
Heart Rate Monitor	-	Yes
Calendar	-	Yes
Alarm Clock	-	Yes
Date & Time Display	-	Yes
Number of Buttons	-	2
audio and video features
Speaker	-	Yes
Gesture Control	-	Yes
Microphone	-	Yes

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