Fingers, Thumbs, and People: Design for How People Touch and Hold Their Devices
Touch guidelines like Apple’s 44px are based too much on technology, and pixel sizes. They are not based on the real world, on people’s hands, fingers and thumbs.
Now we have real research, including thousands of new, original observations on how people hold and touch their phones, phablets and tablets. We can increasingly understand why people act this way, and can use this information to design for the different ways people actually use their mobile devices.