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Watch Ultra 2 vs Galaxy Watch8

Apple Watch Ultra 2 vs Samsung Galaxy Watch8

What Watch Ultra 2 does better (7) and where Galaxy Watch8 wins (3) — every spec side by side.

Apple · 2023Watch Ultra 2

7.5Score

7 advantages≈ $470

Higher score

Samsung · 2025Galaxy Watch8

6.6Score

3 advantages≈ $310

9.4Display9.6

3.4Battery life3.2

8.6Health tracking8.2

3.1Sports & outdoor3.1

7.9Smart features7.9

9.6Build & durability7.2

Dimensions

Size comparison

Watch Ultra 2Galaxy Watch8

	Watch Ultra 2	Galaxy Watch8	Difference
Height	49 mm	46 mm	+3 mm
Width	44 mm	43.7 mm	+0.3 mm
Thickness	14.4 mm	8.6 mm	+5.8 mm
Weight	61 g	34 g	+27 g

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

Why is Watch Ultra 2 better than Galaxy Watch8?

Battery life (smartwatch mode)1.5 days vs 1.2 days+25%
Water resistance10 ATM vs 5 ATM2×
Screen size1.92″ vs 1.47″+31%
Storage64 GB vs 32 GB2×
Battery capacity564 mAh vs 435 mAh+30%
Battery life (hours)36 h vs 30 h+20%
Pixel density338 ppi vs 327 ppi+3%

Why is Galaxy Watch8 better than Watch Ultra 2?

Weight61.4 g vs 34 g+81%
Thickness14.4 mm vs 8.6 mm+67%
Resolution (width)410 px vs 480 px+17%

Specifications

Side by side

Only differences	Apple Watch Ultra 2≈ $4707.5	Samsung Galaxy Watch8≈ $3106.6
Design & durability
Case size	49 mm	46 mm
Weight	61.4 g	34 g
Thickness	14.4 mm	8.6 mm
Height	49 mm	46 mm
Width	44 mm	43.7 mm
Case material	Titanium	Aluminium
Sapphire crystal	Yes	Yes
Lens / cover glass	Sapphire crystal glass	Sapphire crystal
Strap material	Textil	—
Water resistance	10 ATM	5 ATM
Ingress protection	IP6X	IP68
Water resistance (IPx)	—	IPx8
Water rating (maker)	100 m	50 m / 5 bar / 5 ATM
Military-grade (MIL-STD-810)	Yes	Yes
Colours	Titanium, Black	Graphite, Silver
Display
Screen size	1.92″	1.47″
Display technology	OLED	AMOLED
Panel	Retina LTPO2 OLED	Super AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	Yes	—
Touchscreen	Yes	—
Resolution (width)	410 px	480 px
Resolution (height)	502 px	480 px
Pixel density	338 ppi	327 ppi
Peak brightness	3,000 nits	3,000 nits
LTPO display	Yes	—
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	1.5 days	1.2 days
Battery life (hours)	36 h	30 h
Battery capacity	564 mAh	435 mAh
Battery type	Li-Ion	Li-Ion
Wireless charging	Yes	Yes
Charging	—	kabellos, magnetisches Ladekabel, magnetische Ladeschale
Charged in 30 min	40%	—
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 (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)	Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (skin), BioActive, antioxidant index
Sports & navigation
Built-in GPS	Yes	Yes
Dual-band GPS	Yes	Yes
Satellite systems	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS
Barometric altimeter	Yes	Yes
Compass	Yes	Yes
Multisport / triathlon mode	Yes	Yes
Dive mode	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