See your screen resolution
system_profiler reports every connected display and its resolution in pixels, including whether it is a Retina screen.
Without Terminal
- Open System Settings.
- Choose Displays — the current size is shown for each screen.
In one command
List each display’s resolution:
system_profiler SPDisplaysDataType | grep ResolutionA Retina screen reports its real pixels (like 3024 x 1964); apps lay out as if it were half that in each direction.
Or just ask Titan
What resolution is my screen, and what size should a screenshot for it be?Do it with Titan
Titan is an AI that lives on your computer: tell it what you need and it does it while you watch — you press Return, nothing runs by itself. What is Titan?
Titan isn’t on this computer yet. Get Titan, then press the button again — the task will be waiting, typed in.