Designer Geontak Oh introduced the Poinf concept device, which solves one of the main problems of large smartphones is the difficulty of using it with one hand.
Poinf attaches to the back panel smartphone using MagSafe or other magnetic technology and connects via Bluetooth. The device has a touchpad on the front panel and a physical key for gesture recognition and presses, and control is carried out using the index and middle Fingers. As in the case of a regular computer mouse, the cursor.
Such a decision is definitely will make controlling large smartphones with one hand more convenient. However, the exact Moving the cursor from item to item on the screen for the first time may seem unusual and perhaps not even as fast as if you worked with smartphone with two hands.
Now Poinf presents is only a concept. It is difficult to say whether this device will ever go on sale.