
OnePlus 13 Simulator & Emulator — Viewport, Resolution & CSS Specs
Test your website on OnePlus 13 in one click — no real device required.
- Free
- 10,000+ users
OnePlus 13 is a popular device to simulate and emulate among web developers and designers for testing responsive layouts and mobile UI behavior. Year of release: 2024.
Why Test on OnePlus 13?
Viewport
Its modern viewport helps catch responsive layout inconsistencies.
Pixel Density (DPR)
Ultra-high pixel density makes any rendering issue, blurry asset or scaling issue instantly visible.
Performance & Animations
Fast animations and scrolling expose performance regressions.
Viewport Size (CSS Resolution)
The CSS viewport defines how media queries, layout breakpoints, and responsive components behave.
For OnePlus 13, the CSS viewport measures:
- Width: 412 px
- Height: 905 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.
To see exactly how this viewport behaves in real conditions, you can simulate OnePlus 13 directly in your browser using Phone Simulator.
Free OnePlus 13 Simulator & Emulator
Accurate viewport simulation directly in your browser.
- No account required
- 40+ devices included
- Works offline
- Free
- 10,000+ users

Pixel Density (Device Pixel Ratio)
OnePlus 13 has a device pixel ratio of 3.5.
Each CSS pixel is rendered using 3.5 physical pixels, resulting in sharper text and images.
For CSS targeting:
@media only screen and (-webkit-min-device-pixel-ratio: 3.5) {
/* High-DPI specific styles */
}In JavaScript:
window.devicePixelRatio;
// returns: 3.5Physical 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: 3168 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 OnePlus 13?
OnePlus 13 has a viewport size of 412×905 CSS pixels.
How can I test my website on OnePlus 13?
You can simulate it instantly using the Phone Simulator Chrome extension - no real device required.
How is Phone Simulator better than Chrome DevTools for OnePlus 13?
DevTools shows an approximate viewport size, but does not emulate the real mobile browser. Phone Simulator uses exact device characteristics and shows how your site renders in a real mobile browser environment.
Can I test localhost with Phone Simulator on OnePlus 13?
Yes. Phone Simulator works with any local URL, including localhost:3000, 127.0.0.1, and similar development setups.
Do I need to buy a OnePlus 13 for testing?
No. Phone Simulator provides accurate device simulation for $0 instead of spending $799+ on a physical device.
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