OPPO Watch S vs Noise ColorFit Ultra 2 Buzz comparison

Show Only Differences Highlight Differences	OPPO Watch S	Noise ColorFit Ultra 2 Buzz
key specs
Strap Colour	Green, Black	-
Compatible OS	Android 10 and later, and iOS 14 and newer	iOS 11 or above, Android 9.0 or above
Strap Material	Rubber	Silicone
Dial Shape	Round	Rectangle
Display Type	AMOLED	-
general
Brand	OPPO	Noise
Model	Watch S	ColorFit Ultra 2 Buzz
Release date	October 16, 2025	August 17, 2022
Model Name	Watch S	-
Dial Colour	Silver, Black	-
Dial Shape	Round	Rectangle
Strap Colour	Green, Black	-
Strap Material	Rubber	Silicone
Size	Large	Regular
Touchscreen	1.46-inch AMOLED	Yes
Interchangeable Strap	Yes	-
Water Resistant	5ATM + IP68	IP68
Dial Material	Stainless Steel	-
dimensions
Width	44.98mm	45.6
Height	44.98mm	37.5
Thickness	8.9mm	37.5
Weight (g)	35.00	41.40
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,	SpO2 Sensor, Heart Rate Sensor
Battery Life	Up to 10 days	7 days
Charge Time	90 minutes	2 hours
Charger Type	Wireless	-
Notification	-	Yes
Notification Type	-	Call, Message, Alarms, Reminders
Stand By Time	-	35 days
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.2	5.3
Wi-Fi	Yes	-
GPS	Yes	-
Call Function	-	Yes
Call Features	-	Reject Calls, Take Calls, Call Logs, Dial Pad
platform and storage features
Operating System	ColorOS Watch 7.1	-
Compatible Operating System	Android 10 and later, and iOS 14 and newer	iOS 11 or above, Android 9.0 or above
Processor Name	BES2800BP	-
Internal Memory	4GB EMMC	-
camera and display features
Display Resolution	464x464	-
Display Type	AMOLED	-
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Altimeter	Yes	-
Compass	Yes	-
Calendar	Yes	-
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Number of Buttons	2	-
Other Fitness Features	sleep tracking, sleep snoring assessment, sleep SpO2 level measurement, sleep quality score, sleep breathing rate monitoring	100 Sports Modes, Auto Sports Detection
audio and video features
Speaker	-	Yes
Microphone	-	Yes

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