01-03-2017 10:18 PM - edited 01-03-2017 10:21 PM
The display in the 2016 model of the HP Spectre x360 15 4K turned out not to be as advertised, and it is possible that they are using the same display in the new model. The 2016 HP Spectre x360 15 display used the RG/BW Pentile matrix to more or less "cheat" the ability to advertise as 4K UHD 3840x2160, without actually providing the full detail of the resolution.
HP Spectre x360 13 true-QHD demonstration (for comparison, 13.3" model's high res display is true)
The new one could be using a completely different display, but given HP's track record with pentile I would say it is better to wait for reviews in order to confirm that.
I will update this post or make a follow-up post once I am able to confirm the type of display used in this laptop.
03-18-2017 09:43 AM
I checked the test pattern on a 2017 (7th gen i7) x360 w/ 15.6" 4K, nvidia, 16GB ram, 512 GB disk model 15bl0xx and the display does NOT show pentile characteristics using the test patterns from the web at 1:1 pixel mapping and a 6x magnifier.
Looks like the real deal now!