Xiaomi Watch S4 15th Anniversary Edition vs Realme Watch S comparison

Show Only Differences Highlight Differences	Xiaomi Watch S4 15th Anniversary Edition	Realme Watch S
key specs
Display Size	36mm	33mm
Compatible OS	Android 8.0 or above, iOS 12.0 or above	Android, iOS
Dial Shape	Round	Round
Display Type	AMOLED	-
Ideal For	Unisex	Unisex
Strap Material	-	Silicone
general
Brand	Xiaomi	Realme
Model	Watch S4 15th Anniversary Edition	Watch S
Release date	May 23, 2025	November 2, 2020
Model Name	Xiaomi Watch S4 15th Anniversary Edition	Watch S
Dial Colour	Black	Black
Dial Shape	Round	Round
Size	Regular	Regular
Touchscreen	1.43	Yes
Interchangeable Strap	Yes	Yes
Water Resistant	5 ATM	Yes
Usage	Regular	-
Ideal For	Unisex	Unisex
Strap Material	-	Silicone
dimensions
Width	47.3	-
Height	47.3	-
Thickness	12	-
Weight (g)	44.50	-
product details
Sensor	Heart Rate Monitor, Stress, Sleep	PPG, SpO2
Compatible Device	Android and iOS	-
Battery Type	486mAh	390mAh
Notification	-	Yes
Battery Life	-	15 days
Charge Time	-	2 hours
Charger Type	-	Magnetic
Rechargeable Battery	-	Yes
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.3	-
Wi-Fi	Yes	-
GPS	Yes	-
Other Connectivity Features	NFC, Galileo, Glonass, Beidou, QZSS	-
Call Function	-	No
Third Party App Support	-	Yes
Call Features	-	Call reject
platform and storage features
Operating System	HyperOS 2	-
Compatible Operating System	Android 8.0 or above, iOS 12.0 or above	Android, iOS
camera and display features
Display Resolution	466 x 466	360x360
Display Size	36mm	33mm
Display Type	AMOLED	-
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	-
Heart Rate Monitor	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Language	English	-
Chronograph	-	Yes

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