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Watch Series 9 vs Galaxy Watch Ultra2

Apple Watch Series 9 vs Samsung Galaxy Watch Ultra2

What Watch Series 9 does better (2) and where Galaxy Watch Ultra2 wins (4) — every spec side by side.

Apple · 2023Watch Series 9

5.9Score

2 advantages≈ $680

Samsung · 2026Galaxy Watch Ultra2

9.4Score

4 advantages≈ $670

Higher score

8.2Display9.7

8.6Health tracking8.2

6.4Sports & outdoor3.1

7.9Smart features7.9

6.0Build & durability9.3

Dimensions

Size comparison

Watch Series 9Galaxy Watch Ultra2

	Watch Series 9	Galaxy Watch Ultra2	Difference
Height	45 mm	47.4 mm	−2.4 mm
Width	38 mm	47.1 mm	−9.1 mm
Thickness	10.7 mm	10.7 mm	=
Weight	42 g	62 g	−19 g

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

Why is Watch Series 9 better than Galaxy Watch Ultra2?

Weight42.3 g vs 61.5 g+45%
Screen size1.9″ vs 1.52″+25%

Why is Galaxy Watch Ultra2 better than Watch Series 9?

Peak brightness2,000 nits vs 5,000 nits2.5×
Water resistance5 ATM vs 10 ATM2×
Battery capacity308 mAh vs 800 mAh2.6×
Resolution (width)396 px vs 498 px+26%

Specifications

Side by side

Only differences	Apple Watch Series 9≈ $6805.9	Samsung Galaxy Watch Ultra2≈ $6709.4
Design & durability
Case size	45 mm	47 mm
Weight	42.3 g	61.5 g
Thickness	10.7 mm	10.7 mm
Height	45 mm	47.4 mm
Width	38 mm	47.1 mm
Case material	Stainless steel	Titanium
Sapphire crystal	Yes	Yes
Lens / cover glass	Sapphire crystal glass	Sapphire crystal glass
Strap material	—	Silikon
Water resistance	5 ATM	10 ATM
Ingress protection	IP6X	IP68
Water resistance (IPx)	—	IPx8
Water rating (maker)	50 m / 5 ATM	100 m / 10 bar / 10 ATM
Military-grade (MIL-STD-810)	—	Yes
Colours	Graphite, Silver, Gold, Red	Titanium Gray, Titanium Silver
Display
Screen size	1.9″	1.52″
Display technology	OLED	AMOLED
Panel	Retina LTPO OLED	Super AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	Yes
Resolution (width)	396 px	498 px
Resolution (height)	484 px	498 px
Pixel density	326 ppi	327 ppi
Peak brightness	2,000 nits	5,000 nits
LTPO display	Yes	—
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	0.8 days	—
Battery life (hours)	18 h	—
Battery capacity	308 mAh	800 mAh
Battery type	Li-Ion	Si/C
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 (body), temperature (water), BioActive
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	6
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	64 GB
RAM	—	2 GB
Platform
Operating system	watchOS 10	Android Wear OS 7
Platform	watchOS	Android
Works with	iOS	Android
Chipset	Apple S9	Snapdragon SW6100 Wear Elite