OPPO Watch S vs Samsung Galaxy Watch Ultra 2 comparison

Show Only Differences Highlight Differences	OPPO Watch S	Samsung Galaxy Watch Ultra 2
key specs
Strap Colour	Green, Black	Marine, PeakForm, Trail, Sports, Misty, and Fabric
Compatible OS	Android 10 and later, and iOS 14 and newer	Android
Strap Material	Rubber	-
Dial Shape	Round	Square
Display Type	AMOLED	Super AMOLED
Display Size	-	48mm
Ideal For	-	Unisex
general
Brand	OPPO	Samsung
Model	Watch S	Galaxy Watch Ultra 2
Release date	October 16, 2025	July 22, 2026
Model Name	Watch S	Galaxy Watch Ultra 2
Dial Colour	Silver, Black	Titanium
Dial Shape	Round	Square
Strap Colour	Green, Black	Marine, PeakForm, Trail, Sports, Misty, and Fabric
Strap Material	Rubber	-
Size	Large	Regular
Touchscreen	1.46-inch AMOLED	1.52-inch AMOLED
Interchangeable Strap	Yes	-
Water Resistant	5ATM + IP68	IP69K + 10ATM + EN13319
Dial Material	Stainless Steel	Titanium
Usage	-	Regular
Ideal For	-	Unisex
dimensions
Width	44.98mm	47.4
Height	44.98mm	47.1
Thickness	8.9mm	10.7
Weight (g)	35.00	61.50
Diameter	-	47mm
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,	Bio-signal sensor, an Electrical Heart sensor, a temperature sensor, an accelerometer, a barometer, a gyroscope, a geomagnetic sensor, and a light sensor
Battery Life	Up to 10 days	-
Charge Time	90 minutes	-
Charger Type	Wireless	-
Compatible Device	-	Android 13 or newer versions
Battery Type	-	800mAh
Rechargeable Battery	-	Yes
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.2	6.0
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Call Function	-	Yes
Messaging Support	-	Yes
Call Features	-	Yes
platform and storage features
Operating System	ColorOS Watch 7.1	OneUI 9 Watch
Compatible Operating System	Android 10 and later, and iOS 14 and newer	Android
Processor Name	BES2800BP	Snapdragon Wear Elite
Internal Memory	4GB EMMC	64GB
RAM	-	2GB
camera and display features
Display Resolution	464x464	498x498
Display Type	AMOLED	Super AMOLED
Display Size	-	48mm
Other Display Features	-	5,000 nits peak brightness level
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Altimeter	Yes	Yes
Compass	Yes	Yes
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Number of Buttons	2	3
Other Fitness Features	sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring	-
Chronograph	-	Yes
Language	-	English
ratings
Overall NDTV Rating	-	Read Review
Design and comfort Rating	-
Tracking accuracy Rating	-
Companion app Rating	-
Software and ecosystem Rating	-
Battery life Rating	-

Popular Smartwatch Brands