Pixel 9 Pro screen size
Pixel 9 Pro: 6.3″, 1280 × 2856, 495 PPI, 427 × 952 CSS viewport at DPR 3.
To proportion
6.3″
- Display size
- 6.3″ (16 cm) diagonalofficial
- Resolution
- 1280 × 2856 pxofficial
- Pixel density
- 495 PPIofficial
- Aspect ratio
- 2.23:1calculated
- Physical size (display)
- 2.58″ × 5.75″ (6.6 × 14.6 cm)calculated
- CSS viewport
- 427 × 952 pxreference
- Device pixel ratio
- 3reference
- Release year
- 2024
For developers
/* Pixel 9 Pro — portrait reference, not a breakpoint */
viewport: 427 × 952 CSS px
panel: 1280 × 2856 · DPR 3
/* Test immediately below and above your layout breakpoints. */Tailwind breakpoint
base
0px-639px
Bootstrap breakpoint
xs
0px-575px
Image slot example
1281 × 720
427px wide at DPR 3
Responsive testing plan
Pixel 9 Pro responsive workflow
Use the 427 × 952 CSS px at DPR 3 as a real QA target, then pair it with nearby widths for regression testing.
Values marked official come from manufacturer specifications; calculated values are derived from them; reference values are developer layout references and can vary with browser, zoom and operating-system settings.
Sources: Google · github.com · Facts reviewed 2026-09-01
Phones with a similar screen size
Devices with a similar viewport
Devices with a similar DPR
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- Responsive Image CalculatorCalculate responsive image export sizes from CSS pixels and DPR. Generate srcset, sizes and CSS image-set snippets for crisp images.
- PPI CalculatorCalculate PPI from resolution and screen size. Instant results with the formula worked through your numbers, plus physical dimensions and dot pitch.