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7mm 2<br />
Interaction <br />
Touch Targets<br />
ustwo studios 2013 / PPP<br />
Naughty Nice<br />
When designing for touch-based devices it’s<br />
important to consider how easy it is to operate<br />
using fingers and thumbs. We usually base our<br />
designs on a minimum touch area of 7mm 2 ,<br />
which is the rough size of the contact area<br />
between a finger and screen, and then leave<br />
at least a 2mm gap between items so they<br />
don’t get accidentally pressed. If you’ve got<br />
components that are intended to be primarily<br />
thumb operated then it’s a good idea to make<br />
those wider, as the average width of an adult<br />
thumb is 25mm.<br />
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