Sony 4K TV 55" Simulator & Emulator — Viewport, Resolution & CSS Specs
Test your website on Sony 4K TV 55" in one click — no real device required.
- Free
- 20,000+ users
Sony 4K TV 55" is a popular device to simulate and emulate among web developers and designers for testing responsive layouts and mobile UI behavior. Year of release: 2021.
Why Test on Sony 4K TV 55"?
Viewport
55-inch 3840×2160 4K display — the largest viewport in the list, exposes missing breakpoints above 1920 px.
Pixel Density (DPR)
Standard pixel density reveals blurry images and icon scaling issues on screen.
Performance & Animations
Smart TV browsers are intentionally lightweight; heavy scripts and complex animations fail visibly on this platform.
Viewport Size (CSS Resolution)
The CSS viewport defines how media queries, layout breakpoints, and responsive components behave.
For Sony 4K TV 55", the CSS viewport measures:
- Width: 1920 px
- Height: 1080 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 Sony 4K TV 55" directly in your browser using Phone Simulator.
Free Sony 4K TV 55" Simulator & Emulator
Accurate viewport simulation directly in your browser.
- No account required
- 40+ devices included
- Works offline
- Free
- 20,000+ users
Pixel Density (Device Pixel Ratio)
Sony 4K TV 55" has a device pixel ratio of 2.
Each CSS pixel is rendered using 2 physical pixels, resulting in sharper text and images.
For CSS targeting:
@media only screen and (-webkit-min-device-pixel-ratio: 2) {
/* High-DPI specific styles */
}In JavaScript:
window.devicePixelRatio;
// returns: 2Physical 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: 3840 px
- Height: 2160 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 Sony 4K TV 55"?
Sony 4K TV 55" has a viewport size of 1920×1080 CSS pixels.
How can I test my website on Sony 4K TV 55"?
You can simulate it instantly using the Phone Simulator Chrome extension - no real device required.
How is Phone Simulator better than Chrome DevTools for Sony 4K TV 55"?
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 Sony 4K TV 55"?
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 Sony 4K TV 55" for testing?
No. Phone Simulator provides accurate device simulation for $0 instead of spending $699+ on a physical device.
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