Open dataset · CC BY 4.0

Apple Watch Series 9 45mm vs Apple Watch Series 8 45mm screen size

Same layout size: both are 198 × 242 points at @2x.

Side by side

Apple Watch Series 9 45mm vs Apple Watch Series 8 45mm screen specs
Spec	Apple Watch Series 9 45mm	Apple Watch Series 8 45mm	Difference
Points	198 × 242 pt	198 × 242 pt	Same
Pixels	396 × 484 px	396 × 484 px	Same
Scale	@2x	@2x	Same
PPI (Apple)	326	–	Only one listed
Case size	45 mm	45 mm	Same
Aspect ratio	9:11 (1.2222)	9:11 (1.2222)	Same
Display type	OLED	OLED	Same
ProMotion	No	No	Same
Always-On	Yes	Yes	Same
Cutout	None	None	Same
Home button	No	No	Same
Release year	2023	2022	Different

Drawn to scale

Solid: Apple Watch Series 9 45mm (198 × 242 pt). Dashed: Apple Watch Series 8 45mm (198 × 242 pt). Drawn to scale in points from the same corner.

Device pages

Other comparisons

Sources

Apple Watch Series 9 45mm

Apple Watch Series 9 - Tech Specs, Apple: diagonal, resolution, ppi, display_type, refresh_rate, features
HIG Layout: watchOS device screen dimensions (snapshot 2026-07-02), Apple: resolution (archived copy)
Xcode 27.1 (27A9275) Simulator: UIKit probe app (scripts/simulator/Measure.swift) and device-type capabilities.plist, measured 2026-10-27, Apple: corner_radius (unofficial), logical_resolution, scale

Apple Watch Series 8 45mm

Apple Watch Series 8 - 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: corner_radius (unofficial), logical_resolution, scale

Download and cite

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

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HTML

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Markdown

[Apple Watch Series 9 45mm vs Apple Watch Series 8 45mm screen size](https://bestlatestapps.com/tools/apple-device-screen-sizes/compare/apple-watch-series-9-45mm-vs-apple-watch-series-8-45mm/) – Apple Watch Series 9 45mm vs Apple Watch Series 8 45mm: points, pixels, PPI and corner radius side…

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

Is the Apple Watch Series 9 45mm screen bigger than the Apple Watch Series 8 45mm?

No, they are the same size: both are 198 × 242 points.

Do apps lay out the same on Apple Watch Series 9 45mm and Apple Watch Series 8 45mm?

Yes. Both are 198 × 242 points at @2x, so UIKit, SwiftUI and CSS layouts match.

Data version 0.1.0, generated 2026-10-27.