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Watch Series 9 vs Galaxy Watch8

Apple Watch Series 9 vs Samsung Galaxy Watch8

What Watch Series 9 does better (2) and where Galaxy Watch8 wins (7) — every spec side by side.

Apple · 2023Watch Series 9

5.9Score

2 advantages≈ $680

Samsung · 2025Galaxy Watch8

6.6Score

7 advantages≈ $310

Higher score

8.2Display9.6

2.4Battery life3.2

8.6Health tracking8.2

6.4Sports & outdoor3.1

7.9Smart features7.9

6.0Build & durability7.2

Dimensions

Size comparison

Watch Series 9Galaxy Watch8

	Watch Series 9	Galaxy Watch8	Difference
Height	45 mm	46 mm	−1 mm
Width	38 mm	43.7 mm	−5.7 mm
Thickness	10.7 mm	8.6 mm	+2.1 mm
Weight	42 g	34 g	+8 g

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

Why is Watch Series 9 better than Galaxy Watch8?

Screen size1.9″ vs 1.47″+29%
Storage64 GB vs 32 GB2×

Why is Galaxy Watch8 better than Watch Series 9?

Battery life (smartwatch mode)0.8 days vs 1.2 days+50%
Peak brightness2,000 nits vs 3,000 nits+50%
Weight42.3 g vs 34 g+24%
Battery life (hours)18 h vs 30 h+67%
Battery capacity308 mAh vs 435 mAh+41%
Thickness10.7 mm vs 8.6 mm+24%
Resolution (width)396 px vs 480 px+21%

Specifications

Side by side

Only differences	Apple Watch Series 9≈ $6805.9	Samsung Galaxy Watch8≈ $3106.6
Design & durability
Case size	45 mm	46 mm
Weight	42.3 g	34 g
Thickness	10.7 mm	8.6 mm
Height	45 mm	46 mm
Width	38 mm	43.7 mm
Case material	Stainless steel	Aluminium
Sapphire crystal	Yes	Yes
Lens / cover glass	Sapphire crystal glass	Sapphire crystal
Water resistance	5 ATM	5 ATM
Ingress protection	IP6X	IP68
Water resistance (IPx)	—	IPx8
Water rating (maker)	50 m / 5 ATM	50 m / 5 bar / 5 ATM
Military-grade (MIL-STD-810)	—	Yes
Colours	Graphite, Silver, Gold, Red	Graphite, Silver
Display
Screen size	1.9″	1.47″
Display technology	OLED	AMOLED
Panel	Retina LTPO OLED	Super AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	—
Resolution (width)	396 px	480 px
Resolution (height)	484 px	480 px
Pixel density	326 ppi	327 ppi
Peak brightness	2,000 nits	3,000 nits
LTPO display	Yes	—
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	0.8 days	1.2 days
Battery life (hours)	18 h	30 h
Battery capacity	308 mAh	435 mAh
Battery type	Li-Ion	Li-Ion
Wireless charging	Yes	Yes
Charging	—	kabellos, magnetisches Ladekabel, magnetische Ladeschale
Charged in 30 min	53%	—
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Skin temperature	Yes	Yes
Temperature sensor	Yes	Yes
HRV tracking	—	Yes
Sleep tracking	Yes	Yes
Sensors	Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)	Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (skin), BioActive, antioxidant index
Sports & navigation
Built-in GPS	Yes	Yes
Dual-band GPS	—	Yes
Satellite systems	GLONASS, GALILEO, BDS, QZSS	GLONASS, GALILEO, BDS
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
Multisport / triathlon mode	Yes	Yes
Connectivity
NFC payments	Yes	Yes
LTE (cellular)	Yes	Yes
eSIM	Yes	Yes
Wi-Fi	Wi-Fi 4	Wi-Fi 4
Bluetooth	5.3	5.3
Ultra Wideband	Yes	—
Smart features
Calls from the wrist	Yes	Yes
Speaker	Yes	Yes
Microphone	Yes	—
Voice assistant	Yes	Yes
Music on the watch	Yes	Yes
Storage	64 GB	32 GB
RAM	—	2 GB
Platform
Operating system	watchOS 10	Android Wear OS 6
Platform	watchOS	Android
Works with	iOS	Android
Chipset	Apple S9	Exynos W1000