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Galaxy Watch5 vs Watch S2

Samsung Galaxy Watch5 vs Xiaomi Watch S2

What Galaxy Watch5 does better (3) and where Watch S2 wins (3) — every spec side by side.

Samsung · 2022Galaxy Watch5

6.4Score

3 advantages≈ $180

Xiaomi · 2022Watch S2

7.6Score

3 advantages≈ $160

Higher score

5.3Display7.5

8.6Health tracking9.6

6.4Sports & outdoor4.7

7.9Smart features6.5

7.4Build & durability6.7

Dimensions

Size comparison

Galaxy Watch5Watch S2

	Galaxy Watch5	Watch S2	Difference
Height	44.4 mm	46 mm	−1.6 mm
Width	43.3 mm	46 mm	−2.7 mm
Thickness	9.8 mm	10.7 mm	−0.9 mm

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

Why is Galaxy Watch5 better than Watch S2?

LTE (cellular)Yes · Watch S2: No
eSIMYes · Watch S2: No
Thickness9.8 mm vs 10.7 mm+9%

Why is Watch S2 better than Galaxy Watch5?

Screen size1.4″ vs 1.43″+2%
Battery capacity410 mAh vs 500 mAh+22%
Resolution (width)450 px vs 466 px+4%

Specifications

Side by side

Only differences	Samsung Galaxy Watch5≈ $1806.4	Xiaomi Watch S2≈ $1607.6
Design & durability
Case size	44 mm	46 mm
Weight	33.5 g	—
Thickness	9.8 mm	10.7 mm
Height	44.4 mm	46 mm
Width	43.3 mm	46 mm
Case material	Aluminium	Stainless steel
Sapphire crystal	Yes	Yes
Lens / cover glass	Sapphire crystal	—
Water resistance	5 ATM	5 ATM
Ingress protection	IP68	—
Water resistance (IPx)	IPx8	—
Water rating (maker)	50 m / 5 bar / 5 ATM	—
Military-grade (MIL-STD-810)	Yes	—
Colours	Graphite, Silver, Pink Gold, Sapphire	Black, Silver, Light Gold
Display
Screen size	1.4″	1.43″
Display technology	AMOLED	AMOLED
Panel	Super AMOLED	AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	—
Resolution (width)	450 px	466 px
Resolution (height)	450 px	466 px
Pixel density	321 ppi	326 ppi
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	1.7 days	—
Battery life (hours)	40 h	—
Battery capacity	410 mAh	500 mAh
Battery type	Li-Ion	Li-Po
Wireless charging	Yes	Yes
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	—
Skin temperature	Yes	Yes
Temperature sensor	Yes	Yes
Sleep tracking	Yes	—
Sensors	Accelerometer, gyro, heart rate, barometer, thermometer (skin temperature)	Accelerometer, gyro, compass, barometer, heart rate, SpO2, thermometer (skin temperature), body composition (BMI)
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	No
eSIM	Yes	No
Wi-Fi	Wi-Fi 4	—
Bluetooth	5.2	5.2
Smart features
Calls from the wrist	Yes	—
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	Proprietary OS
Platform	Android	Proprietary
Works with	Android	—
Chipset	Exynos W920	—