Galaxy Tab S9 screen size
The Galaxy Tab S9 renders websites at 800×1280 CSS pixels in portrait and 1280×800 in landscape. It shares the exact same viewport as the Galaxy Tab S9+, so one test covers them all.
Viewport specs
| CSS viewport (portrait) | 800 × 1280 px |
| CSS viewport (landscape) | 1280 × 800 px |
| Aspect ratio | 5:8 |
| Breakpoint category | tablet |
| Device type | tablet |
| Brand | Tablets |
CSS media query for Galaxy Tab S9
/* Galaxy Tab S9 — portrait */
@media (max-width: 800px) {
/* your styles */
}
/* Galaxy Tab S9 — landscape */
@media (max-width: 1280px) and (orientation: landscape) {
/* your styles */
}Testing tips for Galaxy Tab S9
Viewports this wide are where layouts most often break: check that nothing scrolls sideways, buttons are at least 44px tall, and body text is 16px or larger.
Compare it against a tablet and a desktop width in the same view to catch breakpoint jumps — Responsivly's multi-view does this in one click.
FAQ
What is the Galaxy Tab S9 viewport size?
The Galaxy Tab S9 has a CSS viewport of 800×1280 pixels in portrait orientation and 1280×800 pixels in landscape.
What media query targets the Galaxy Tab S9?
Use @media (max-width: 800px) for portrait styles, or @media (min-width: 800px) and (max-width: 800px) to target this exact width.
How do I test my website on the Galaxy Tab S9?
Open Responsivly, paste your URL and pick Galaxy Tab S9 from the device list — it renders your site at 800×1280 for free, no signup.