If you picked up the iPhone 6 or 6 Plus and are finding the larger screen unwieldy then it may be worth trying out Zoom mode. This enlarges the size of the interface and makes it all look bigger.
To enable, open the Settings app then select Display & Brightness. From here tap the View option and select Zoomed. This gives you a visual representation of how the interface will now look. Swipe across the screenshots to view more examples. If you want to try out this view then tap Set at the top. To swap back, return here and select the Standard option instead.
Note – if you enable Zoomed view then you will not be able to use the extra features when using your device in Landscape view.