How to Check Your Screen Size and Device Details
Developer · Step-by-step guide · 3 steps · 2 min read
Device Info shows facts about the device and browser you use right now. It shows your screen size, browser and system. This helps when tech support asks what you are using.
Open the Device Info & Screen Size Detector
In the pictures, orange letters like A show where to look. Each step tells you its letter.
Step 1: Open the tool and look at the top
The badges at the top show your device type, screen size, browser and system. You do not need to type anything. See A in the picture.
Step 2: Check the details
The tables below list more facts. They show your screen size, window size and pixel ratio. They also show which web features your browser has. See B in the picture.
Step 3: Copy the report
Press Copy Full Report to copy it all as text. Then paste it into a support chat. Press Refresh Details after you resize the window or turn your phone. See C in the picture.
Tips and questions
Why is the size smaller than my screen's resolution?
Browsers count size in their own pixels. On sharp screens, one browser pixel covers several real pixels. The device pixel ratio says how many.
What is the viewport?
It is the part of the browser window that shows the page.
Can it tell my exact phone model?
Not always. Browsers share only a few details. So it may just say "iPhone".
Privacy
All facts are read from your own browser and shown only to you. Nothing is sent to us.
Try it now
The Device Info & Screen Size Detector is free. You do not need an account.
Open the Device Info & Screen Size Detector