idk.dev
Compare
Galaxy Watch Ultra vs Galaxy Watch4

Samsung Galaxy Watch Ultra vs Samsung Galaxy Watch4

What Galaxy Watch Ultra does better (5) and where Galaxy Watch4 wins (2) — every spec side by side.

Samsung · 2024Galaxy Watch Ultra

9.2Score

5 advantages≈ $230

Higher score

Samsung · 2021Galaxy Watch4

6.7Score

2 advantages≈ $120

9.0Display5.3

8.6Health tracking9.2

3.1Sports & outdoor6.4

7.9Smart features8.4

9.4Build & durability7.5

Dimensions

Size comparison

Galaxy Watch UltraGalaxy Watch4

	Galaxy Watch Ultra	Galaxy Watch4	Difference
Height	47.4 mm	44.4 mm	+3 mm
Width	47.4 mm	43.3 mm	+4.1 mm
Thickness	12.1 mm	9.8 mm	+2.3 mm
Weight	60 g	30 g	+30 g

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

Why is Galaxy Watch Ultra better than Galaxy Watch4?

Water resistance10 ATM vs 5 ATM2×
Storage64 GB vs 16 GB4×
Screen size1.5″ vs 1.4″+7%
Battery capacity590 mAh vs 361 mAh+63%
Resolution (width)480 px vs 450 px+7%

Why is Galaxy Watch4 better than Galaxy Watch Ultra?

Weight60.5 g vs 30.3 g+100%
Thickness12.1 mm vs 9.8 mm+23%

Specifications

Side by side

Only differences	Samsung Galaxy Watch Ultra≈ $2309.2	Samsung Galaxy Watch4≈ $1206.7
Design & durability
Case size	47 mm	44 mm
Weight	60.5 g	30.3 g
Thickness	12.1 mm	9.8 mm
Height	47.4 mm	44.4 mm
Width	47.4 mm	43.3 mm
Case material	Titanium	Aluminium
Sapphire crystal	Yes	—
Lens / cover glass	Sapphire crystal glass	Corning Gorilla Glass DX+
Strap material	Silikon	Fluorelastomer
Water resistance	10 ATM	5 ATM
Ingress protection	IP68	IP68
Water resistance (IPx)	IPx8	IPx8
Water rating (maker)	100 m / 10 bar / 10 ATM	50 m / 5 bar / 5 ATM
Military-grade (MIL-STD-810)	Yes	Yes
Colours	Titanium Sliver, Titanium Gray, Titanium White, Titanium Blue	Black, Pink Gold, Silver, Green, Thom Browne Edition, Bespoke Edition, PXG Golf Edition
Display
Screen size	1.5″	1.4″
Display technology	AMOLED	AMOLED
Panel	Super AMOLED	Super AMOLED
AMOLED / OLED display	Yes	Yes
Always-on display	—	Yes
Resolution (width)	480 px	450 px
Resolution (height)	480 px	450 px
Pixel density	327 ppi	321 ppi
Refresh rate	60 Hz	60 Hz
Battery
Battery life (smartwatch mode)	—	2.2 days
Battery life (hours)	—	52 h
Battery capacity	590 mAh	361 mAh
Battery type	Li-Ion	Li-Ion
Wireless charging	Yes	Yes
Charging	kabellos, magnetisches Ladekabel, magnetische Ladeschale	—
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Skin temperature	Yes	Yes
Temperature sensor	Yes	—
Sleep tracking	Yes	Yes
Sensors	Accelerometer, gyro, heart rate, barometer, altimeter, compass, SpO2, temperature (body), temperature (water), BioActive	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
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
Smart features
Calls from the wrist	Yes	—
Speaker	Yes	Yes
Voice assistant	Yes	—
Music on the watch	Yes	Yes
Storage	64 GB	16 GB
RAM	2 GB	1.5 GB
Platform
Operating system	Android Wear OS 5	Android Wear OS 4
Platform	Android	Android
Works with	Android	Android
Chipset	Exynos W1000	Exynos W920