Open dataset · CC BY 4.0

Apple Watch Series 3 42mm screen size

Apple Watch Series 3 42mm: 156 × 195 points at @2x, which is 312 × 390 pixels on an OLED display (42 mm case).

Screen specs

Apple Watch Series 3 42mm screen specs
Points	156 × 195 pt
Pixels	312 × 390 px
Scale	@2x
Case size	42 mm
Aspect ratio	4:5 (1.25)
Display type	OLED
ProMotion	No
Always-On	No
Cutout	None
Home button	No
Release year	2017

Safe area insets

Safe areas haven't been measured for this device yet.

For iOS developers

A 1 pt line is 2 pixels thick.
A 44 pt tap target is 88 × 88 pixels.
Assets: @2x.
WKInterfaceDevice.current().screenBounds: 156 × 195 points (portrait).

Same layout size

Same points and scale (156 × 195 pt at @2x):

Apple Watch Series 2 42mm

Compare

Previous Apple Watch Series model: Apple Watch Series 2 42mm
Next Apple Watch Series model: Apple Watch Series 4 44mm

Sources

Apple Watch Series 3 - Tech Specs, Apple: diagonal, resolution, ppi, display_type, refresh_rate, features
Xcode 27.1 (27A9275) Simulator: UIKit probe app (scripts/simulator/Measure.swift) and device-type capabilities.plist, measured 2026-10-27, Apple: logical_resolution, scale

Download and cite

/api/devices/apple-watch-series-3-42mm.json: this device as JSON.
/api/devices.json: every device.
/api/devices.csv: every device as CSV.
github.com/aryansbtloe/apple-device-screen-specs: the dataset, JSON Schema and validator.

Data: Apple device screen specs by bestlatestapps.com (https://bestlatestapps.com/tools/apple-device-screen-sizes/), licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Built from Apple's published tech specs and Human Interface Guidelines, Wikipedia for model identifiers, and our own Xcode Simulator measurements.

Cite as: Singh, A. (2026). Apple Device Screen Specs (v0.1.0). Zenodo. https://doi.org/10.5281/zenodo.23819103

Also on: Zenodo and Kaggle

Link to this tool

Found it useful? You're welcome to link to it from your README, docs or blog.

HTML

<a href="https://bestlatestapps.com/tools/apple-device-screen-sizes/apple-watch-series-3-42mm/">Apple Watch Series 3 42mm screen size</a> – Apple Watch Series 3 42mm: OLED screen, 156×195 points at @2x, 312×390 px.

Markdown

[Apple Watch Series 3 42mm screen size](https://bestlatestapps.com/tools/apple-device-screen-sizes/apple-watch-series-3-42mm/) – Apple Watch Series 3 42mm: OLED screen, 156×195 points at @2x, 312×390 px.

Dataset credit (CC BY 4.0)

Data: [Apple device screen specs](https://bestlatestapps.com/tools/apple-device-screen-sizes/) by bestlatestapps.com, CC BY 4.0

Questions

What is the Apple Watch Series 3 42mm screen resolution?

312 × 390 pixels, shown as 156 × 195 points at @2x.

Does the Apple Watch Series 3 42mm have the same screen size as the Apple Watch Series 2 42mm?

Yes, for layout: both are 156 × 195 points at @2x, so apps and web pages lay out the same. Both have 312 × 390 pixels.

Data version 0.1.0, generated 2026-10-27.