WatchFitTool
Apple Watch SE 3 - GPS · 44mm — case dimensions and design

Apple · 2025

Watch SE 3 - GPS · 44mmSize, Dimensions & Wrist Fit

Case Width

38mm

Thickness

10.7mm

Lug-to-Lug

44mm

Weight

32.9g

The Apple Watch SE 3 - GPS · 44mm sits best on flat wrist widths of about 46–63mm (≈ 12.3–16.8cm wrist circumference). Adjust the slider below to check your wrist.

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The Watch SE 3 - GPS · 44mm in short

The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.

  • Between 0.75 days and 32 hours per charge depending on the power mode — battery saver at best, smartwatch at worst.
  • Water rated to 50 m.
  • 32.9g on the wrist. Lighter than 87% of the 38mm watches we have weights for.
  • 1.78 inches OLED/AMOLED display, always-on capable.

Does the Watch SE 3 - GPS · 44mm fit your wrist?

Drag the slider to your wrist width and see the Watch SE 3 - GPS · 44mm overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.

Watch Fit Tool

For sports watches, Lug-to-Lug (L2L) is what matters most. Bulky is fine — overhang is not.

mm
40.0mm (small)80.0mm (large)
How to Measure
1

Lay arm flat, palm up.

2

Measure the flat width across top of wrist.

Wrist Width Measurement Guide →
Apple Watch SE 3 - GPS · 44mm
Case: 38mmL2L: 44mmThick: 10.7mm
Edge Clearance
+5.5mm
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Balanced Fit5.5mm clearance. Comfortable everyday wear with room to spare.

Happy with the fit? Check current availability for the Watch SE 3 - GPS · 44mm.

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2D Dimension Schematics

The Watch SE 3 - GPS · 44mm drawn to scale — from above, and in profile against the wrist.

Highlight
From above — true scale
From the side — how far it sits off the wrist
  • Apple Watch SE 3 - GPS · 44mm38mm × 44mm · 10.7mm thick

3D preview

Apple Watch SE 3 - GPS · 44mm on a wrist

On an arm sized to your own wrist — the view a product photo never gives you.

Open 3D try-on

Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.

Which Watch SE 3 - GPS size fits you?

This model comes in 4 versions. Set your measurement and each one reports its own verdict — tap any size to open its page.

Which of these fits your wrist?

55.0mm

Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.

All 4 Watch SE 3 - GPS variants fit this wrist. The 38mm · GPS + Cellular gives you the most presence without overhanging; the smallest is the discreet end of the range.

34mm · GPS + Cellular
Balanced Fit
Width
34mm
Thick
10.7mm
Weight
26.4g

7.5mm clear a side

View this size
34mm · GPS
Balanced Fit
Width
34mm
Thick
10.74mm
Weight
26.3g

7.5mm clear a side

View this size
38mm · GPS + CellularBest fit
Balanced Fit
Width
38mm
Thick
10.7mm
Weight
33g

5.5mm clear a side

View this size
38mm · GPSViewing
Balanced Fit
Width
38mm
Thick
10.7mm
Weight
32.9g

5.5mm clear a side

How long the Watch SE 3 - GPS · 44mm lasts, by power mode

Runtime changes by a factor of 2 depending on what you leave switched on. Bars are scaled against the longest mode.

  • Battery Saver32 hours
  • Smartwatch0.75 days

How the Watch SE 3 - GPS · 44mm ranks on battery

Against the 77 Apple watches in our database, ranked on each figure Apple publishes.

  • Everyday use18 hours#15 of 77
  • Power save32 hours#24 of 27

Watch SE 3 - GPS · 44mm specifications

The figures that decide a purchase, followed by every line Apple publishes.

Battery life
0.75 days
Display
1.78 inches
Resolution
368 x 448 px
Water rating
5 ATM
Storage
64GB

Full specification sheet

109 published lines across 8 groups, unedited

Design

width
38
height
44
volume
17.89 cm³
weight
32.9 g
thickness
10.7
ATM rating
5 ATM
resolution
368 x 448 px
screen size
1.78 inches
Display type
OLED/AMOLED
Has a display
pixel density
326 ppi
maximum altitude
10000 feet
water resistance
Waterproof
Always-On Display
has a touch screen
waterproof depth rating
50 m
Watch band is replaceable
Has sapphire glass display
maximum operating temperature
35 °C
Ingress Protection (IP) rating
IP68
has branded damage-resistant glass
lowest potential operating temperature
0 °C

Battery

battery life
0.75 days
has wireless charging
has a removable battery
Has a solar power battery
has a rechargeable battery
battery life in power save mode
32 hours

Sensors

has GPS
has a compass
Has a barometer
has a gyroscope
Has a cadence sensor
has an accelerometer
Monitors perspiration
Has a heart rate monitor
Has a temperature sensor
Monitors blood oxygenation levels

Features

release date
2025-09-09
Has a stopwatch
Has smart alarm
Has call control
Has silent alarm
internal storage
64GB
measures VO2 max
Has notifications
Locates your phone
has a front camera
has fall detection
has voice commands
Acquires GPS faster
Has vibrating alerts
number of microphones
1
shows readiness level
Can be used to answer calls
measures resting heart rate
has irregular heart rate warnings
has fast/slow heart rate notifications
Has a built-in camera remote control function

Connectivity

has NFC
Wi-Fi version
Wi-Fi 4 (802.11n)
supports ANT+
supports Wi-Fi
supports Galileo
Bluetooth version
5.3
has a cellular module
Is compatible with iOS
Is compatible with Android

Miscellaneous

has aptX
Has passcode
Has auto pause
has crash detection
Is compatible with Windows
Is compatible with Mac OS X
has an external memory slot
Compatible with smart scales
has a battery level indicator
has a socket for a 3.5 mm audio jack
Compatible with external heart rate monitors

App & Software

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

Activity tracking

Measures pace
Tracks distance
Tracks elevation
Designed for golf
Tracks your sleep
Tracks steps taken
Designed for diving
Has a route tracker
Has exercise tagging
Has multi-sport mode
Tracks calorie intake
Provides sleep reports
Detects activities automatically
Has a stroke counter for swimming

Watch SE 3 - GPS · 44mm — Frequently Asked Questions

Will the Apple Watch SE 3 - GPS · 44mm fit my wrist?

The Apple Watch SE 3 - GPS · 44mm looks balanced on flat wrist widths of roughly 46–63mm (about 12.3–16.8cm circumference). Drag the slider above to check it against your own measurement.

How long does the Apple Watch SE 3 - GPS · 44mm battery last?

Between 0.75 days and 32 hours per charge, depending on the power mode. Apple rates Battery Saver at 32 hours and Smartwatch at 0.75 days; the chart above lists all 2 modes.

How does the Apple Watch SE 3 - GPS · 44mm battery compare with other Apple watches?

At 18 hours in everyday use it ranks #15 of the 77 Apple watches in our database — the top 19% of the range. The full ranking, including GPS and power-saving figures, is on our Apple battery life comparison.

Is the Apple Watch SE 3 - GPS · 44mm thick for a 38mm watch?

At 10.7mm, middle of the pack for thickness at this width. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.

Should I get the 34mm or 38mm Watch SE 3 - GPS?

The Watch SE 3 - GPS comes in 2 case sizes — 34mm, 38mm. Which one suits you depends on the flat width of your wrist rather than preference: the larger sizes need a wider wrist to sit inside the edge. Set your measurement in the size picker above and each variant reports its clearance in millimetres.

What other watches are the same size as the Apple Watch SE 3 - GPS · 44mm?

Huawei Watch Fit 4, Certina DS Action Diver 38 Powermatic 80 PVD / Black, Omega Railmaster Omega Co-Axial Master Chronometer 38 Stainless Steel / Grey Gradient, TAG Heuer Formula 1 Solargraph 38 Black Polylight / Black / Rubber all sit within half a millimetre of the Apple Watch SE 3 - GPS · 44mm's 38mm case, so they cover the same amount of wrist.

What is the lug-to-lug of the Apple Watch SE 3 - GPS · 44mm?

44mm, against a 38mm case width. Lug-to-lug is the measurement that decides overhang: if it exceeds the flat width of your wrist, the lugs sit past the edge no matter how modest the case diameter looks.

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