In high definition devices there can be multiple pixels per point, thereby increasing the device’s definition. Knowing the logical resolution of a display is essential in designing responsive UI.
A quick reference for iOS devices.
In high definition devices there can be multiple pixels per point, thereby increasing the device’s definition. Knowing the logical resolution of a display is essential in designing responsive UI.
Use this ruler to see the actual points you're seeing on a device. More about logical resolution here.