What Is My Screen Size
Open SiteInstantly discover your device's screen dimensions, resolution, and display specifications. Free tool to check screen size, pixel density, and more.
Added on September 21, 2025
Product Information
What is What Is My Screen Size?
What Is My Screen Size is a free online tool that instantly detects your device’s display dimensions, resolution, pixel density and physical size (in inches or cm). It also lets users browse detailed specs for popular smartphones, tablets and monitors so they can compare and understand screen metrics easily.
How to use What Is My Screen Size?
- Open the website on your device — the tool automatically detects your current screen resolution and physical dimensions.
- Browse the “Popular Devices” section to view screen specs (size, resolution, pixel density) of phones, tablets, or monitors.
Core Features
- Instant detection of your current device’s screen resolution and display dimensions.
- Physical size metrics in both inches and centimeters.
- Large library of device specifications (smartphones, tablets, monitors) to browse.
- Compare function for side-by-side device screen specs.
- Pixel density / PPI display for more technical detail.
Use Cases
- Web designers checking current device’s resolution to tailor responsive layouts.
- Buyers comparing screen specs before purchasing phones, tablets or monitors.
- Developers needing accurate PPI / physical size info for UI design.
- Content creators adjusting media or graphics to match display dimensions.