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Galaxy Watch4 Classic vs Watch S1 Active

Samsung Galaxy Watch4 Classic vs Xiaomi Watch S1 Active

What Galaxy Watch4 Classic does better (2) and where Watch S1 Active wins (3) — every spec side by side.

Samsung · 2021Galaxy Watch4 Classic

6.2Score

2 advantages≈ $95

Xiaomi · 2022Watch S1 Active

7.5Score

3 advantages≈ $85

Higher score

5.3Display7.5

5.0Health tracking5.0

6.4Sports & outdoor4.7

8.4Smart features6.5

Dimensions

Size comparison

Galaxy Watch4 ClassicWatch S1 Active

	Galaxy Watch4 Classic	Watch S1 Active	Difference
Height	45.5 mm	46.5 mm	−1 mm
Width	45.5 mm	47.3 mm	−1.8 mm
Thickness	11 mm	11 mm	=

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

Why is Galaxy Watch4 Classic better than Watch S1 Active?

LTE (cellular)Yes · Watch S1 Active: No
eSIMYes · Watch S1 Active: No

Why is Watch S1 Active better than Galaxy Watch4 Classic?

Screen size1.4″ vs 1.43″+2%
Battery capacity361 mAh vs 470 mAh+30%
Resolution (width)450 px vs 466 px+4%

Specifications

Side by side

Only differences	Samsung Galaxy Watch4 Classic≈ $956.2	Xiaomi Watch S1 Active≈ $857.5
Design & durability
Case size	46 mm	46 mm
Weight	52 g	—
Thickness	11 mm	11 mm
Height	45.5 mm	46.5 mm
Width	45.5 mm	47.3 mm
Case material	Titanium	Aluminium
Lens / cover glass	Corning Gorilla Glass DX	—
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	Black, Silver, Thom Browne Edition, Bespoke Edition	Moon White, Space Black, Ocean Blue
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	361 mAh	470 mAh
Battery type	Li-Ion	Li-Po
Wireless charging	Yes	—
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	—
Sleep tracking	Yes	—
Sensors	Accelerometer, gyro, compass, barometer, heart rate, SpO2	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	No
eSIM	Yes	No
Wi-Fi	Wi-Fi 4	—
Bluetooth	5	5.2
Smart features
Speaker	Yes	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	—