Samsung Galaxy Watch Ultra2

Works with: Android only
Display: AMOLED, 1.52 in
Case sizes: 47 mm
Battery: 2.5 days
GPS battery: 20 hours
Water resistance: 10 ATM
Weight: 61.5 g
Cellular: LTE version

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Samsung Galaxy Watch Ultra2 at a glance

Battery

A few days

Up to 60 hours in smartwatch mode. 20 hours with GPS.
GPS

Multi-band GPS

No maps. Runs and rides without your phone.
Display

AMOLED, 1.52 in

1.52 in, up to 5,000 nits and always-on option.
Health

ECG on the wrist

Measures ECG, blood pressure, blood oxygen and skin temperature.
Phone & smart

Android only

LTE, payments, music and calls.
Build

10 ATM water rating

61.5 g. Sapphire lens. MIL-STD-810.

Samsung Galaxy Watch Ultra2 full specifications

Overview

Brand	Samsung
Model	Galaxy Watch Ultra2
Series	Galaxy Watch
Replaces	Galaxy Watch Ultra
Colours	Titanium Silver, Titanium Gray
Also sold as	Galaxy Watch Ultra 2

Platform & apps

Needs an Android phone, running Wear OS.

It has an app store for extra apps and watch faces.

Operating system	Wear OS
Works with	Android only
Minimum Android	Android 13
Chipset	Snapdragon Wear Elite Platform
Storage	64 GB
App store	Yes

Display

A bright, colourful screen that looks like a phone display.

1.52 in, up to 5,000 nits and always-on option.

Display type	AMOLED
Display name	Super AMOLED
Screen size	1.52 in
Resolution	498 x 498
Pixel density	463 ppi
Peak brightness	5,000 nits
Colour display	Yes
Always-on display	Yes
Controls	touchscreen, buttons, action button

Design & durability

A 47 mm case weighing 61.5 g.

Rated 10 ATM: fine for swimming, snorkelling and water sports. A sapphire lens resists scratches. Tested to MIL-STD-810 for shock, heat and cold.

Case sizes	47 mm
Dimensions	47.4 x 47.1 x 10.7 mm
Thickness	10.7 mm
Weight (case)	61.5 g
Case material	Titanium
Lens	sapphire
Band fitting	proprietary
Water resistance	10 ATM
IP rating	IP69K
Water standard	ISO 22810:2010
MIL-STD-810 tested	Yes
Operating temperature	-20 to 55 °C

Battery

A few days: up to 60 hours in smartwatch mode.

With the always-on display, about 60 hours. With GPS on, up to 20 hours. Makers test with their own settings, so treat these as best-case figures.

Battery (smartwatch mode)	2.5 days
Battery (GPS)	20 hours
All battery modes	Always-on display: 2.5 days; Smartwatch: 3.3 days; GPS: 20 hours; Battery saver: 16 hours
Battery capacity	800 mAh
Charging	puck
Wireless charging	Yes
Fast charging	Up to 40% in 30 mins

GPS & navigation

Built-in multi-band GPS for accurate tracks, even near tall buildings and trees.

Navigation shows a breadcrumb trail, not a full map.

GPS	Built-in
Multi-band GPS	Yes
Satellite systems	GPS, GLONASS, BeiDou, Galileo, QZSS
Maps	Breadcrumb trail
Navigation features	turn-by-turn, back-to-start, climb planner, waypoints, course import

Health & sensors

A health-focused watch: it measures ECG, blood pressure, blood oxygen and skin temperature.

For sleep, it offers sleep coaching. ECG availability can depend on your country.

Sensors	optical HR, ECG electrode, SpO2, skin temperature, accelerometer, gyroscope, barometer, compass, ambient light, depth
Heart-rate sensor	BioActive
ECG	Yes
Blood oxygen (SpO2)	Yes
Skin temperature	Yes
Blood pressure	cuff-calibrated
Sleep tracking	Sleep coaching
Sleep apnea alerts	Yes
Energy score	Energy Score
Body composition	Yes

Safety

Detects hard falls and can call for help if you don't respond.

SOS works over its own LTE connection.

Emergency SOS	From the watch (LTE)
Fall detection	Yes
Siren	Yes

Training

Built for training, with the metrics serious athletes use.

It adds daily suggested workouts.

Training metrics	VO2 max, training load, race predictor
Adaptive coaching	Yes
External sensors	power meter, speed/cadence
Smart trainer control	No

Smart features

Smart extras include an LTE version, contactless payments, music storage and calls on the wrist.

Voice assistant: Gemini. LTE needs a carrier plan.

Notifications	Yes
Message replies	Android
Calls on the watch	Yes
Speaker	Yes
Microphone	Yes
Voice assistant	Gemini
Contactless payments	Yes
Cellular	LTE version available
eSIM	Yes
Music storage	Yes
Offline music apps	Spotify, YouTube Music
Wi-Fi	802.11a/b/g/n 2.4GHz+5GHz
Bluetooth	Bluetooth 6.0

Diving, golf & more

It has a depth gauge for snorkelling and water sports.

Rated to 40 m.

Diving	Depth gauge
Max dive depth	40 m
Dive standard	EN 13319

Specs compiled from Samsung's product pages and datasheets. Manufacturers revise hardware between versions, so check the version on the box. Spotted an error? Tell us.