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Xiaomi Watch S4 15th Anniversary Edition vs Noise ColorFit Ultra

Xiaomi Watch S4 15th Anniversary Edition vs Noise ColorFit Ultra comparison

Show Only Differences Highlight Differences	Xiaomi Watch S4 15th Anniversary Edition	Noise ColorFit Ultra
key specs
Display Size	36mm	-
Compatible OS	Android 8.0 or above, iOS 12.0 or above	-
Dial Shape	Round	Rectangle
Display Type	AMOLED	TFT LED
Ideal For	Unisex	Unisex
Strap Material	-	Silicone
general
Brand	Xiaomi	Noise
Model	Watch S4 15th Anniversary Edition	ColorFit Ultra
Release date	May 23, 2025	July 15, 2021
Model Name	Xiaomi Watch S4 15th Anniversary Edition	-
Dial Colour	Black	-
Dial Shape	Round	Rectangle
Size	Regular	Regular
Touchscreen	1.43	Yes
Interchangeable Strap	Yes	Yes
Water Resistant	5 ATM	IP68
Usage	Regular	-
Ideal For	Unisex	Unisex
Strap Material	-	Silicone
Water Resistance Depth	-	1.5
Dial Material	-	Aircraft-grade Aluminium
dimensions
Width	47.3	38.8
Height	47.3	46.6
Thickness	12	11.9
Weight (g)	44.50	47.00
product details
Sensor	Heart Rate Monitor, Stress, Sleep	Heart, SpO2
Compatible Device	Android and iOS	Android, iOS
Battery Type	486mAh	-
Notification	-	Call, Text, Social Media
Battery Life	-	9 days
Charge Time	-	2 hours
Stand By Time	-	30 days
Rechargeable Battery	-	Yes
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.3	5.1
Wi-Fi	Yes	-
GPS	Yes	-
Other Connectivity Features	NFC, Galileo, Glonass, Beidou, QZSS	-
platform and storage features
Operating System	HyperOS 2	-
Compatible Operating System	Android 8.0 or above, iOS 12.0 or above	-
camera and display features
Display Resolution	466 x 466	-
Display Size	36mm	-
Display Type	AMOLED	TFT LED
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Language	English	-
Compass	-	Yes
Calendar	-	Yes
Number of Buttons	-	1
audio and video features
Other Multimedia Features	-	Music Control

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