Bought this XPS 13 9310 touch version 2 weeks ago and has these two pen model PN579x for the laptop. Found out the pen buttons are working fine but not the touch.
Dell XPS 13 vs. Dell XPS 15: Which should you buy? | PCWorld
Dell XPS 13 2-in-1 (9365) Stylus Pen, BoxWave® [AccuPoint Active Stylus] Electronic Stylus with Ultra Fine Tip for Dell XPS 13 2-in-1 (9365) - Metallic Silver : Amazon.ca: Electronics
Does Dell's XPS 13 (9300) come with a digital pen or stylus? | Windows Central