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Xiaomi Watch S4 41mm vs Noise ColorFit Ultra 2 Buzz

Xiaomi Watch S4 41mm vs Noise ColorFit Ultra 2 Buzz comparison

Show Only Differences Highlight Differences	Xiaomi Watch S4 41mm	Noise ColorFit Ultra 2 Buzz
key specs
Display Size	41mm	-
Strap Material	Milanese	Silicone
Dial Shape	Round	Rectangle
Ideal For	Unisex	-
Compatible OS	-	iOS 11 or above, Android 9.0 or above
general
Brand	Xiaomi	Noise
Model	Watch S4 41mm	ColorFit Ultra 2 Buzz
Release date	September 24, 2025	August 17, 2022
Dial Shape	Round	Rectangle
Strap Material	Milanese	Silicone
Size	Regular	Regular
Touchscreen	1.32	Yes
Water Resistant	5ATM	IP68
Water Resistance Depth	50 m	-
Usage	Regular	-
Dial Material	Stainless steel	-
Ideal For	Unisex	-
dimensions
Width	41.2	45.6
Height	41.2	37.5
Diameter	9.5	-
Weight (g)	32.00	41.40
Thickness	-	37.5
product details
Sensor	Heart rate sensor (with blood oxygen sensor), Accelerometer, Gyroscope, Ambient light sensor, Electronic compass, Barometer sensor, Temperature sensor	SpO2 Sensor, Heart Rate Sensor
Battery Type	320mAh	-
Battery Life	8 days	7 days
Notification	-	Yes
Notification Type	-	Call, Message, Alarms, Reminders
Charge Time	-	2 hours
Stand By Time	-	35 days
connectivity features
Call Function	Yes	Yes
Bluetooth	Yes	Yes
Bluetooth Version	5.4	5.3
GPS	Yes	-
Call Features	-	Reject Calls, Take Calls, Call Logs, Dial Pad
platform and storage features
Operating System	Xiaomi HyperOS 3	-
Compatible Operating System	-	iOS 11 or above, Android 9.0 or above
camera and display features
Display Resolution	466 × 466	-
Display Size	41mm	-
Other Display Features	1500nits, 60Hz refresh rate	-
fitness and watch functions
Step Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Altimeter	Yes	-
Compass	Yes	-
Calendar	Yes	-
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Language	English	-
Calorie Count	-	Yes
Other Fitness Features	-	100 Sports Modes, Auto Sports Detection
audio and video features
Speaker	Yes	Yes
Microphone	Yes	Yes

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