Xiaomi Watch S4 vs Xiaomi Mi Band 9 comparison

Show Only Differences Highlight Differences	Xiaomi Watch S4	Xiaomi Mi Band 9
key specs
Dial Shape	Round	Rectangle
Display Type	AMOLED	-
Ideal For	Unisex	Unisex
general
Brand	Xiaomi	Xiaomi
Model	Watch S4	Mi Band 9
Release date	October 29, 2024	July 19, 2024
Dial Shape	Round	Rectangle
Size	Regular	Regular
Touchscreen	1.43	1.62
Interchangeable Strap	Yes	Yes
Water Resistant	5 ATM	5ATM
Usage	Regular	Regular
Ideal For	Unisex	Unisex
dimensions
Width	47.3	21.6
Height	47.3	46.5
Thickness	12	10.99
Weight (g)	44.50	15.80
product details
Sensor	heart rate, SpO2, steps, sleep tracker	Optical heart rate, blood oxygen, six-axis motion
Battery Type	486mAh	233
Battery Life	15	-
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.2	5.4
Wi-Fi	Yes	-
GPS	Yes	-
Other Connectivity Features	NFC, Galileo, Glonass, Beidou, QZSS	-
platform and storage features
Operating System	HyperOS 2	HyperOS
camera and display features
Display Resolution	466 x 466	192 x 490
Display Type	AMOLED	-
fitness and watch functions
Step Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Date & Time Display	Yes	Yes
Calendar	-	Yes

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