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Galaxy Watch5 Pro vs Watch S3

Samsung Galaxy Watch5 Pro vs Xiaomi Watch S3

What Galaxy Watch5 Pro does better (2) and where Watch S3 wins (4) — every spec side by side.

Samsung · 2022Galaxy Watch5 Pro

6.8Score

2 advantages≈ $120

Xiaomi · 2023Watch S3

7.8Score

4 advantages≈ $120

Higher score

5.3Display4.6

5.0Health tracking5.0

6.4Sports & outdoor4.7

8.4Smart features9.6

5.6Build & durability4.5

Dimensions

Size comparison

Galaxy Watch5 ProWatch S3

	Galaxy Watch5 Pro	Watch S3	Difference
Height	45.4 mm	47 mm	−1.6 mm
Width	45.4 mm	47 mm	−1.6 mm
Thickness	10.5 mm	12 mm	−1.5 mm
Weight	46 g	44 g	+2 g

Drawn to the same scale from the official dimensions (front and side).

Why is Galaxy Watch5 Pro better than Watch S3?

Battery capacity590 mAh vs 486 mAh+21%
Thickness10.5 mm vs 12 mm+14%

Why is Watch S3 better than Galaxy Watch5 Pro?

Battery life (smartwatch mode)3.3 days vs 12 days3.6×
Weight46.5 g vs 44 g+6%
Screen size1.4″ vs 1.43″+2%
Resolution (width)450 px vs 466 px+4%

Specifications

Side by side

Only differences	Samsung Galaxy Watch5 Pro≈ $1206.8	Xiaomi Watch S3≈ $1207.8
Design & durability
Case size	45 mm	47 mm
Weight	46.5 g	44 g
Thickness	10.5 mm	12 mm
Height	45.4 mm	47 mm
Width	45.4 mm	47 mm
Case material	Titanium	Aluminium
Sapphire crystal	Yes	—
Lens / cover glass	Sapphire crystal	Scratch/drop-proof glass
Strap material	—	Fluorelastomer
Water resistance	5 ATM	5 ATM
Ingress protection	IP68	—
Water resistance (IPx)	IPx8	—
Water rating (maker)	50 m / 5 bar / 5 ATM	50 m / 5 bar / 5 ATM
Military-grade (MIL-STD-810)	Yes	—
Colours	Black Titanium, Gray Titanium	Black, Silver, Brown
Display
Screen size	1.4″	1.43″
Display technology	AMOLED	AMOLED
Panel	Super AMOLED	AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	—
Touchscreen	—	Yes
Resolution (width)	450 px	466 px
Resolution (height)	450 px	466 px
Pixel density	321 ppi	326 ppi
Peak brightness	—	600 nits
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	3.3 days	12 days
Battery life (hours)	80 h	—
Battery capacity	590 mAh	486 mAh
Battery type	Li-Ion	Li-Po
Wireless charging	Yes	—
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Temperature sensor	Yes	—
Sleep tracking	Yes	—
Sensors	Accelerometer, gyro, heart rate, barometer, thermometer (body temperature)	Accelerometer, gyro, compass, barometer, heart rate, SpO2
Sports & navigation
Built-in GPS	Yes	Yes
Dual-band GPS	—	Yes
Satellite systems	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS, QZSS
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
Multisport / triathlon mode	Yes	—
Connectivity
NFC payments	Yes	Yes
LTE (cellular)	Yes	Yes
eSIM	Yes	Yes
Wi-Fi	Wi-Fi 4	—
Bluetooth	5.2	5.2
Smart features
Speaker	Yes	Yes
Voice assistant	Yes	—
Music on the watch	Yes	—
Storage	16 GB	—
RAM	1.5 GB	—
Platform
Operating system	Android Wear OS 4	HyperOS
Platform	Android	Proprietary
Works with	Android	iOS, Android
Chipset	Exynos W920	—