iPhone SE (3rd gen) screen size

iPhone SE (3rd gen): 4.7″ display, 750 × 1334 resolution, 326 PPI, 375 × 667 CSS viewport at DPR 2.

To proportion

4.7″

Display size: 4.7″ (11.9 cm) diagonal official
Resolution: 750 × 1334 px official
Pixel density: 326 PPI official
Aspect ratio: 16:9 calculated
Physical size (display): 2.3″ × 4.1″ (5.8 × 10.4 cm) calculated
CSS viewport: 375 × 667 px reference
Device pixel ratio: 2 reference
Release year: 2022

For developers

/* iPhone SE (3rd gen) — portrait */
@media (width: 375px) and (min-resolution: 2dppx) { }

/* viewport: 375 × 667 CSS px · DPR 2 · panel: 750 × 1334 */

Tailwind breakpoint

base

0px-639px

Bootstrap breakpoint

0px-575px

Image slot example

750 × 422

375px wide at DPR 2

Test this device viewport

iPhone SE (3rd gen) responsive workflow

Use the 375 × 667 CSS px at DPR 2 as a real QA target, then pair it with nearby widths for regression testing.

Open checklist Image assets for DPR Compare screen size

Values marked official come from the manufacturer's specifications (source) ; calculated values are derived from them; reference values are standard developer references for this model.