For LoDPI, a DPI range of 90–150 is ideal for desktops while 124–156 is ideal for laptops.
For HiDPI, 180–300 is ideal for desktops while 248–312 is ideal for laptops.
Text and UI are likely to be too big for typical viewing distances. Avoid if possible.
Text and UI might be too big for typical viewing distances, but it's largely up to user preference and physical distance from the display.
Not HiDPI, but a nice sweet spot. Text and UI should be legible at typical viewing distances.
Relatively high resolution, but not quite HiDPI. Text and UI may be too small by default, but forcing HiDPI would make them appear too large. The experience may be slightly improved by increasing the text size.
HiDPI by default, but text and UI may appear too large. Turning off HiDPI and increasing the text size might help.
Crisp HiDPI text and UI along with a readable size at typical viewing distances. This is the jackpot.
Text and UI are likely to appear too small for typical viewing distances. Increasing the text size may help.
Text and UI will appear too small for typical viewing distances.
This display is in a very tricky range and is not likely to work well with integer scaling out of the box.
Dippi is primarily a native app designed for elementary OS. Get it on AppCenter to calculate display info any time, online or off. It has extra features like logical resolution, scaling factor, aspect ratio, live calculation, and a nice diagram to help you out.