Xiaomi 15 Ultra Simulator — Viewport, Resolution & CSS Specs
Test your website on Xiaomi 15 Ultra in one click – no real device required.
- Free
- 9,000+ users
The Xiaomi 15 Ultra is a popular device among web developers and designers for testing responsive layouts and mobile UI behavior.
With an expansive screen and ultra-high pixel density, it quickly reveals image quality and complex layout issues. Year of release: 2025.
Why Test on Xiaomi 15 Ultra?
Viewport
Its expansive viewport reveals complex layout and content hierarchy problems.
Pixel Density (DPR)
Ultra-high DPR quickly exposes low-quality images and rendering flaws.
Performance & Animations
Premium performance expectations make micro-lags and animation issues obvious.
Viewport Size (CSS Resolution)
The CSS viewport defines how media queries, layout breakpoints, and responsive components behave.
For Xiaomi 15 Ultra, the CSS viewport measures:
- Width: 480 px
- Height: 1067 px
ℹ️ The visible height can vary slightly depending on the browser UI (Safari, Chrome, etc.).
Some analytics platforms only display the physical screen resolution (see below) instead of the CSS viewport size, so keep that in mind when interpreting results.
To see exactly how this viewport behaves in real conditions, you can simulate Xiaomi 15 Ultra directly in your browser using Phone Simulator.
Test on Xiaomi 15 Ultra Now
Accurate viewport simulation directly in your browser.
- No account required
- 30+ devices included
- Works offline
- Free
- 9,000+ users
Pixel Density (Device Pixel Ratio)
Xiaomi 15 Ultra has a device pixel ratio of 3.
Each CSS pixel is rendered using 3 physical pixels, resulting in sharper text and images.
For CSS targeting:
@media only screen and (-webkit-min-device-pixel-ratio: 3) {
/* High-DPI specific styles */
}In JavaScript:
window.devicePixelRatio;
// returns: 3Physical Screen Resolution
Physical resolution refers to the actual number of hardware pixels on the display. While it does not affect CSS layouts, it is commonly shown in analytics and device specifications.
- Width: 1440 px
- Height: 3200 px
ℹ️ Physical resolution is not used for CSS layouts but is often shown in analytics tools.
Frequently Asked Questions
What is the viewport size of Xiaomi 15 Ultra?
The Xiaomi 15 Ultra has a viewport size of 480×1,067 CSS pixels.
How can I test my website on Xiaomi 15 Ultra?
You can simulate it instantly using the Phone Simulator Chrome extension - no real device required.
How is Phone Simulator better than Chrome DevTools for Xiaomi 15 Ultra?
DevTools shows an approximate viewport size, but does not emulate the real MIUI browser. Phone Simulator uses exact device characteristics and shows how your site renders in a real Android browser environment.
Do I need to buy a Xiaomi 15 Ultra for testing?
No. Phone Simulator provides accurate device simulation for $0 instead of spending $1,199+ on a physical device.
Does Xiaomi 15 Ultra support responsive design testing?
Yes, you can test responsive designs on Xiaomi 15 Ultra viewport using Phone Simulator without owning the actual device.
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