idk.dev
Compare
Galaxy Watch6 Classic vs Watch S4 Sport

Samsung Galaxy Watch6 Classic vs Xiaomi Watch S4 Sport

What Galaxy Watch6 Classic does better (4) and where Watch S4 Sport wins (4) — every spec side by side.

Samsung · 2023Galaxy Watch6 Classic

8.4Score

4 advantages≈ $320

Xiaomi · 2024Watch S4 Sport

9.0Score

4 advantages≈ $270

Higher score

9.1Display8.1

8.6Health tracking5.0

6.4Sports & outdoor4.7

7.9Smart features9.6

4.6Build & durability5.5

Dimensions

Size comparison

Galaxy Watch6 ClassicWatch S4 Sport

	Galaxy Watch6 Classic	Watch S4 Sport	Difference
Height	46.5 mm	46.9 mm	−0.4 mm
Width	46.5 mm	46.9 mm	−0.4 mm
Thickness	10.9 mm	12.6 mm	−1.7 mm
Weight	59 g	49 g	+10 g

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

Why is Galaxy Watch6 Classic better than Watch S4 Sport?

Screen size1.5″ vs 1.43″+5%
Pixel density453 ppi vs 326 ppi+39%
Thickness10.9 mm vs 12.6 mm+16%
Resolution (width)480 px vs 466 px+3%

Why is Watch S4 Sport better than Galaxy Watch6 Classic?

Weight59 g vs 49 g+20%
Storage16 GB vs 32 GB2×
Peak brightness2,000 nits vs 2,200 nits+10%
Battery capacity425 mAh vs 586 mAh+38%

Specifications

Side by side

Only differences	Samsung Galaxy Watch6 Classic≈ $3208.4	Xiaomi Watch S4 Sport≈ $2709.0
Design & durability
Case size	46 mm	47 mm
Weight	59 g	49 g
Thickness	10.9 mm	12.6 mm
Height	46.5 mm	46.9 mm
Width	46.5 mm	46.9 mm
Case material	Stainless steel	—
Sapphire crystal	Yes	Yes
Lens / cover glass	Sapphire crystal	Sapphire crystal glass
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	Titanium
Display
Screen size	1.5″	1.43″
Display technology	AMOLED	AMOLED
Panel	Super AMOLED	AMOLED
AMOLED / OLED display	Yes	Yes
Resolution (width)	480 px	466 px
Resolution (height)	480 px	466 px
Pixel density	453 ppi	326 ppi
Peak brightness	2,000 nits	2,200 nits
Refresh rate	60 Hz	60 Hz
Battery
Battery capacity	425 mAh	586 mAh
Battery type	Li-Ion	Li-Po
Wireless charging	Yes	—
Charging	kabellos, Schnellladefunktion, magnetisches Ladekabel	—
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	—
Skin temperature	Yes	—
Temperature sensor	Yes	—
Sleep tracking	Yes	—
Sensors	Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (skin)	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	5.3	5.2
Smart features
Calls from the wrist	Yes	—
Speaker	Yes	Yes
Voice assistant	Yes	—
Music on the watch	Yes	—
Storage	16 GB	32 GB
RAM	2 GB	—
Platform
Operating system	Android Wear OS 4	HyperOS
Platform	Android	Proprietary
Works with	Android	—
Chipset	Exynos W930	—