The Sony Ericsson FH Mobile Phone is probably the only phone that would work better when broken into two pieces. This concept phone was designed by Du Jun as the ultimate multimedia phone.
The FH Mobile Phone is just like a normal phone, with one exception: it flips open vertically. This expands the size of the screen and lets you watch videos and movies without straining your eyes on a small screen.
The FH Mobile Phone can also split into two, becoming a walkie-talkie using Bluetooth connectivity. This phone may seem like a crazy concept, but anything is possible nowadays.