Evaluation of hybrid front- and back-of-device interaction on mobile devices

With the recent trend of increasing display sizes of mobile devices, one-handed interaction has become increasingly difficult when a user wants to maintain a safe grip around the device at the same time. In this paper we evaluate how a combination of hybrid front- and back-of-device touch input can be used to overcome the difficulties when using a mobile device with one hand. Our evaluation shows that, even though such a technique is slower than conventional front-of-device input, it allows for accurate and safe input.