Icons too low on screen

[iMore Question]

How do I move my icons up on the screen....there is about an inch and 1/2 above them for some reason?

 

[robertk328]

You're probably experiencing the mode "reachability" which was designed for larger screens to be able to be used one-handed. Double-touch your home key to return to normal.

Here's more info:

How to use the iPhone 6 and 6 Plus one-handed with Reachability | iMore