OPPO Watch S vs Samsung Galaxy Watch8 (40mm) comparison

Show Only Differences Highlight Differences	OPPO Watch S	Samsung Galaxy Watch8 (40mm)
key specs
Strap Colour	Green, Black	Graphite, Silver
Compatible OS	Android 10 and later, and iOS 14 and newer	Android and iOS
Strap Material	Rubber	-
Dial Shape	Round	-
Display Type	AMOLED	Super AMOLED
general
Brand	OPPO	Samsung
Model	Watch S	Galaxy Watch8 (40mm)
Release date	October 16, 2025	July 9, 2025
Model Name	Watch S	Samsung Galaxy Watch 8
Dial Colour	Silver, Black	Black
Dial Shape	Round	-
Strap Colour	Green, Black	Graphite, Silver
Strap Material	Rubber	-
Size	Large	Regular
Touchscreen	1.46-inch AMOLED	-
Interchangeable Strap	Yes	-
Water Resistant	5ATM + IP68	Yes
Dial Material	Stainless Steel	-
Water Resistance Depth	-	IP68
Usage	-	Regular
dimensions
Width	44.98mm	40.4
Height	44.98mm	42.7
Thickness	8.9mm	8.6
Weight (g)	35.00	30.00
product details
Sensor	eight-channel optical heart rate sensor, 16-channel optical pulse oximeter sensor, ECG sensor, a wrist temperature sensor, accelerometer, gyroscope, geomagnetic sensor, air pressure sensor, ambient light sensor,	-
Battery Life	Up to 10 days	-
Charge Time	90 minutes	-
Charger Type	Wireless	-
Battery Type	-	325
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.2	5.3
Wi-Fi	Yes	-
GPS	Yes	Yes
platform and storage features
Operating System	ColorOS Watch 7.1	Watch OS
Compatible Operating System	Android 10 and later, and iOS 14 and newer	Android and iOS
Processor Name	BES2800BP	Exynos W1000
Internal Memory	4GB EMMC	32GB
RAM	-	2GB
camera and display features
Display Resolution	464x464	-
Display Type	AMOLED	Super AMOLED
fitness and watch functions
Step Count	Yes	-
Calorie Count	Yes	-
Heart Rate Monitor	Yes	-
Altimeter	Yes	-
Compass	Yes	-
Calendar	Yes	-
Alarm Clock	Yes	-
Date & Time Display	Yes	-
Number of Buttons	2	-
Other Fitness Features	sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring	-

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