Consider your stride length and more
The stride length, pedal spacing, footpath, and flywheel weight all contribute to how an elliptical feels.
If you’re going to use your elliptical often or for long periods of time, most people feel comfortable with a longer stride, narrow pedal spacing, a flatter footpath, and a heavier flywheel.
Consider trying an elliptical before you buy, to ensure and it feels right for you.