TheoryPhone X4

The TheoryPhone X4 was released in 2012 by Theorysonic. It is the fourth TheoryPhone X series.

Technical specifications

 * 1.9GHz quad-core TheoryCore X4 processor
 * 5.0” inch Full HD (1920x1080) TheoryClear IPS display touchscreen
 * 8 MP camera
 * 1080p Full HD video recording at 30fps