If you would have gotten the Latitude 14 7000 instead of the XPS, then you get the Intel wireless + BT out of the box which always seems to just work.
It also has an option for an insane 10-hour battery; the default is like 6.
Unfortunately Dell never puts the Latitude line front and center on the website, so you have to know to look for them.
Latitude isn't entry-level, it's just the business line. Yes, they have the high end Precision workstation line, but Latitude models typically are built as good as or better than XPS models.
Unfortunately Dell never puts the Latitude line front and center on the website, so you have to know to look for them.