Xiaomi Smart Band 10 Pro vs Xiaomi Watch S4 15th Anniversary Edition comparison

Show Only Differences Highlight Differences	Xiaomi Smart Band 10 Pro	Xiaomi Watch S4 15th Anniversary Edition
key specs
Compatible OS	iOS, Android	Android 8.0 or above, iOS 12.0 or above
Display Size	-	36mm
Dial Shape	-	Round
Display Type	-	AMOLED
Ideal For	-	Unisex
general
Brand	Xiaomi	Xiaomi
Model	Smart Band 10 Pro	Watch S4 15th Anniversary Edition
Release date	May 21, 2026	May 23, 2025
Model Number	M2551B1	-
Model Name	Xiaomi Smart Band 10 Pro	Xiaomi Watch S4 15th Anniversary Edition
Touchscreen	AMOLED	1.43
Interchangeable Strap	Yes	Yes
Water Resistance Depth	5 ATM	-
Dial Colour	-	Black
Dial Shape	-	Round
Size	-	Regular
Water Resistant	-	5 ATM
Usage	-	Regular
Ideal For	-	Unisex
product details
Sensor	Heart rate sensor and a SpO2 sensor	Heart Rate Monitor, Stress, Sleep
Compatible Device	Android 8.0 or later and iOS 14.0 or later	Android and iOS
Battery Life	21 Days	-
Rechargeable Battery	Yes	-
Battery Type	-	486mAh
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.4	5.3
GPS	Yes	Yes
Messaging Support	Yes	-
Third Party App Support	Yes	-
Wi-Fi	-	Yes
Other Connectivity Features	-	NFC, Galileo, Glonass, Beidou, QZSS
platform and storage features
Operating System	Xiaomi HyperOS	HyperOS 2
Compatible Operating System	iOS, Android	Android 8.0 or above, iOS 12.0 or above
fitness and watch functions
Step Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Alarm Clock	Yes	Yes
Calorie Count	-	Yes
Date & Time Display	-	Yes
Language	-	English
dimensions
Width	-	47.3
Height	-	47.3
Thickness	-	12
Weight (g)	-	44.50
camera and display features
Display Resolution	-	466 x 466
Display Size	-	36mm
Display Type	-	AMOLED

Popular Smartwatch Brands