Samsung Galaxy Watch8 (40mm) vs Xiaomi Watch S4 15th Anniversary Edition comparison

Show Only Differences Highlight Differences	Samsung Galaxy Watch8 (40mm)	Xiaomi Watch S4 15th Anniversary Edition
key specs
Strap Colour	Graphite, Silver	-
Compatible OS	Android and iOS	Android 8.0 or above, iOS 12.0 or above
Display Type	Super AMOLED	AMOLED
Display Size	-	36mm
Dial Shape	-	Round
Ideal For	-	Unisex
general
Brand	Samsung	Xiaomi
Model	Galaxy Watch8 (40mm)	Watch S4 15th Anniversary Edition
Release date	July 9, 2025	May 23, 2025
Model Name	Samsung Galaxy Watch 8	Xiaomi Watch S4 15th Anniversary Edition
Dial Colour	Black	Black
Strap Colour	Graphite, Silver	-
Size	Regular	Regular
Water Resistant	Yes	5 ATM
Water Resistance Depth	IP68	-
Usage	Regular	Regular
Dial Shape	-	Round
Touchscreen	-	1.43
Interchangeable Strap	-	Yes
Ideal For	-	Unisex
dimensions
Width	40.4	47.3
Height	42.7	47.3
Thickness	8.6	12
Weight (g)	30.00	44.50
product details
Battery Type	325	486mAh
Sensor	-	Heart Rate Monitor, Stress, Sleep
Compatible Device	-	Android and iOS
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.3	5.3
GPS	Yes	Yes
Wi-Fi	-	Yes
Other Connectivity Features	-	NFC, Galileo, Glonass, Beidou, QZSS
platform and storage features
Operating System	Watch OS	HyperOS 2
Compatible Operating System	Android and iOS	Android 8.0 or above, iOS 12.0 or above
RAM	2GB	-
Processor Name	Exynos W1000	-
Internal Memory	32GB	-
camera and display features
Display Type	Super AMOLED	AMOLED
Display Resolution	-	466 x 466
Display Size	-	36mm
fitness and watch functions
Step Count	-	Yes
Calorie Count	-	Yes
Heart Rate Monitor	-	Yes
Alarm Clock	-	Yes
Date & Time Display	-	Yes
Language	-	English

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