The new feature is very similar to Apple's
reachability option on the iPhone 6 Plus which allows you to reposition the contents of the screen in the lower half of the screen so that you can reach poorly - placed buttons with one hand while holding the phone.
Here, turn on
the Reachability option by tapping on the toggle.
Not exact matches
The new
option would allow users to be reached via an email address, and help with
reachability.
Even with
Reachability, it's still somewhat cumbersome to have to double tap every time you want a screen to come down to meet your thumb, but at least the iPhone gives an
option if you need to do some things with one hand.