The focus of 4K technology has centered around HDTV, Toshiba is planning to launch two laptops with 4K displays later this year.
The Satellite P50t is also in the 15-inch class, but features touch-screen functionality working in congress with Windows 8.1. Just looking at the images of the two laptops, the Satellite P50t appears considerably thinner than the Tecra W50--no surprise given the latter's workstation pedigree.
Both laptops deliver a 3840 x 2160 resolution at 282 PPI. Unfortunately, there's no word as to pricing just yet.