WatchFitTool
Samsung Galaxy Watch Ultra — case dimensions and design

Samsung · 2024

Galaxy Watch Ultra Size, Dimensions & Wrist Fit

Case Width

47.4mm

Thickness

12.1mm

Battery

4 days

Weight

60.5g

The Galaxy Watch Ultra looks in proportion on wrists of 17 cm (6.7 in) and up round, and fills the wrist at 18–20 cm (lug-to-lug estimated at ≈54.5mm; Samsung does not publish it).

Check Wrist FitCompareCheck offer

As an Amazon Associate, WatchFitTool earns from qualifying purchases.

Does the Galaxy Watch Ultra fit your wrist?

Wrist round (mm left each side)47.4mm≈54.5mm lug to lug, est.
14 cm / 5.5 inOverhangs (4.7mm over)
15 cm / 5.9 inOverhangs (3.1mm over)
16 cm / 6.3 inOverhangs (1.4mm over)
17 cm / 6.7 inBold (0.2mm)
18 cm / 7.1 inSweet spot (1.8mm)
19 cm / 7.5 inSweet spot (3.4mm)
20 cm / 7.9 inBalanced (5mm)

How the fit model works · Size chart for every wrist

The Galaxy Watch Ultra in short

  • Between 48 hours and 100 hours per charge depending on the power mode — battery saver at best, heavy use at worst.
  • Water rated to 100 m.
  • 12.1mm thick. Thinner than 87% of the 60 smartwatches 47mm across that we track, so it slides under a cuff more easily than most of its size.
  • 1.5 inches AMOLED display, always-on capable.
  • Carries on-board maps rather than breadcrumb navigation only.

Compare with another watch

Size, fit and battery side by side, against any smartwatch we list.

↑ ↓ to move · Enter to open the comparison · Esc to close

Galaxy Watch Ultra battery life

Runtime by power mode

  • Battery Saver100 hours
  • Smartwatch4 days
  • Heavy use48 hours

Where it ranks among Samsung watches

  • Everyday use4 days#1 of 64
  • Power save4.2 days#1 of 11
  • Capacity590 mAh#1 of 64

Top three in the Samsung range for everyday (smartwatch) use, power-saving mode and battery capacity.

See all 64 Samsung watches ranked by battery life

2D Dimension Schematics

Top view
Side view
  • Samsung Galaxy Watch Ultra 47.4mm × ≈54.5mm (est.) · 12.1mm thick

3D preview

Samsung Galaxy Watch Ultra on a wrist

Open 3D try-on

Galaxy Watch Ultra — Frequently Asked Questions

Is the Samsung Galaxy Watch Ultra thick for a 47mm watch?

At 12.1mm, thinner than 87% of the 60 smartwatches 47mm across that we track, so it slides under a cuff more easily than most of its size.

Galaxy Watch Ultra specifications

Battery life
4 days
Display
1.5 inches
Resolution
480 x 480 px
Water rating
10 ATM
Storage
32GB
Show all specificationsSamsung's published specification, for reference · checked September 2026

Design

width
47.4
height
47.4
volume
27.19 cm³
weight
60.5 g
thickness
12.1
ATM rating
10 ATM
resolution
480 x 480 px
screen size
1.5 inches
Display type
OLED/AMOLED
Has a display
Yes
pixel density
327 ppi
maximum altitude
29527 feet
water resistance
Waterproof
Always-On Display
Yes
has a touch screen
Yes
is designed for kids
No
waterproof depth rating
100 m
Watch band is replaceable
Yes
Has sapphire glass display
Yes
maximum operating temperature
55 °C
Ingress Protection (IP) rating
IP68
has branded damage-resistant glass
No
lowest potential operating temperature
-20 °C

Battery

battery life
4 days
battery power
590 mAh
has wireless charging
Yes
has a removable battery
No
Has a solar power battery
No
has a rechargeable battery
Yes
battery life in training mode
48 hours
battery life in power save mode
100 hours

Sensors

has GPS
Yes
has a compass
Yes
Has a barometer
Yes
has a gyroscope
Yes
Has a cadence sensor
No
has an accelerometer
Yes
Monitors perspiration
No
Has a heart rate monitor
Yes
Has a temperature sensor
Yes
Monitors blood oxygenation levels
Yes

Features

RAM
2GB
release date
2024-07-10
Has a stopwatch
Yes
Has smart alarm
No
Has call control
Yes
Has silent alarm
Yes
has HRV tracking
Yes
internal storage
32GB
measures VO2 max
Yes
Has notifications
Yes
Has ECG technology
Yes
Locates your phone
Yes
has a front camera
No
has fall detection
Yes
has voice commands
Yes
Acquires GPS faster
Yes
Has vibrating alerts
Yes
shows readiness level
Yes
Can be used to answer calls
Yes
measures resting heart rate
Yes
has irregular heart rate warnings
Yes
has fast/slow heart rate notifications
Yes
Has a built-in camera remote control function
Yes

Connectivity

has NFC
Yes
SIM cards
1 eSIM
Wi-Fi version
Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
supports ANT+
No
supports Wi-Fi
Yes
supports Galileo
Yes
Bluetooth version
5.4
has a cellular module
Yes
Is compatible with iOS
No
Is compatible with Android
Yes

Miscellaneous

Has passcode
Yes
Has auto pause
Yes
Is compatible with Windows
No
Is compatible with Mac OS X
No
has an external memory slot
No
Compatible with smart scales
Yes
has a battery level indicator
Yes
has a socket for a 3.5 mm audio jack
No
Compatible with external heart rate monitors
Yes

App & Software

Ad-free
Yes
Free app
Yes
Tracks BMI
Yes
Has coaching
Yes
Includes maps
Yes
Supports routes
Yes
Has achievements
Yes
Has goal setting
Yes
Has exercise diary
Yes
Predicts ovulation
Yes
Can be personalised
Yes
Has weight tracking
Yes
Predicts start date
Yes
Tracks water intake
Yes
Has inactivity alerts
Yes
Has period notifications
Yes
Has temperature tracking
Yes
Provides activity reports
Yes
Displays fertile window notifications
Yes
Counts how many calories you've burned
Yes

Activity tracking

Measures pace
Yes
Tracks distance
Yes
Tracks elevation
Yes
Tracks your sleep
Yes
Tracks steps taken
Yes
Designed for diving
No
Has a route tracker
Yes
Has exercise tagging
Yes
Has multi-sport mode
Yes
Tracks calorie intake
Yes
Provides sleep reports
Yes
Detects activities automatically
Yes
Has a stroke counter for swimming
Yes
← All Samsung watchesSamsung watches 44mm & larger →Samsung battery life compared →Browse all brandsHow watch sizing works →Compare watch sizes →