So it’s looking like the 3.5” and 4” screens of yore will start their inevitable decline very quickly. That means that those of us who’ve gotten comfortable building apps, responsive sites and mobile-optimized web views with the old ways in mind have some learning to do (myself included).
That means that learning how to design for thumbs is now more important than ever. Luckily, it helps that these phone display sizes are going to be practically universal. A
This is especially important for those of us who’ve only been building iOS apps. All those design tradeoffs we thought we never had to worry about are suddenly right here in front of us — in an avalanche of pre-orders.
But this gets complicated. We unconsciously adjust the way we hold our phones to reach certain controls in various areas of the screen. During any given day, I’ll wager that you stretch your grip, choke up on the phone, or angle it in ways that make reaching difficult areas easier.