I have a precision and an XPS,

Chassis is the same, keyboard, touch screen, pad are the same. Processor, disk, Wi-Fi and memory options are the same. Warranty and on premises technician same.

Prices are not the same, and sometimes precision has more GPU options. And I think a 17 inch screen, but that what a different line under the same brand name.

But one has official Linux support and the other doesn’t. But since all hardware is the same, surprise, it just works.