Xiaomi Watch S4 vs Xiaomi Watch S2 comparison

Show Only Differences Highlight Differences	Xiaomi Watch S4	Xiaomi Watch S2
key specs
Dial Shape	Round	Round
Display Type	AMOLED	AMOLED
Ideal For	Unisex	Unisex
Strap Colour	-	Black, Light Gold and Silver
Display Size	-	42mm
Compatible OS	-	Android, iOS
Strap Material	-	Leather
general
Brand	Xiaomi	Xiaomi
Model	Watch S4	Watch S2
Release date	October 29, 2024	January 10, 2022
Dial Shape	Round	Round
Size	Regular	Large
Touchscreen	1.43	Yes
Interchangeable Strap	Yes	Yes
Water Resistant	5 ATM	Yes
Usage	Regular	Fitness & Outdoor
Ideal For	Unisex	Unisex
Model Name	-	Xiaomi Watch S2
Dial Colour	-	Black
Strap Colour	-	Black, Light Gold and Silver
Strap Material	-	Leather
Water Resistance Depth	-	5ATM
dimensions
Width	47.3	-
Height	47.3	-
Thickness	12	-
Weight (g)	44.50	-
product details
Sensor	heart rate, SpO2, steps, sleep tracker	Blood Oxygen Monitor, Heart Rate Monitor
Battery Type	486mAh	305
Battery Life	15	12 Days
Closure	-	Strap Buckle
Compatible Device	-	Android, iOS
Notification	-	Message
Rechargeable Battery	-	Yes
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.2	5.2
Wi-Fi	Yes	-
GPS	Yes	Yes
Other Connectivity Features	NFC, Galileo, Glonass, Beidou, QZSS	Notifications
Call Function	-	Yes
Third Party App Support	-	Yes
Call Features	-	call, answer, reject and mute calls
platform and storage features
Operating System	HyperOS 2	MIUI Watch OS
Compatible Operating System	-	Android, iOS
camera and display features
Display Resolution	466 x 466	466X466
Display Type	AMOLED	AMOLED
Display Size	-	42mm
Other Display Features	-	Touch Screen
fitness and watch functions
Step Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Date & Time Display	Yes	Yes
Compass	-	Yes
Calendar	-	Yes
Alarm Clock	-	Yes

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