4 Use One-Handed Keyboard
If you have trouble reaching certain keys, or you should want to speed up your one-handing typing, iOS actually has a measure to make either of these scenarios easier. It’s the one-handed keyboard — and it’s particularly handy for larger devices.
You can enable the feature in General > Keyboards > One-Handed Keyboard. When it’s set up, you simply press and hold on the globe (or smile) icon in a keyboard to switch it to one-handed mode. You, of course, have the option of setting it to left-handed or right-handed, depending on your usage.