Pen(s) for Zbook Studio x360 G5?

[dtronvig]

What pens will work with the Zbook Studio x360 G5?  The only reference I can find anywhere is B&H offering a HP Zbook X360 Pen. This appears to be the HP Rechargeable Active Pen 4KL69AA,(under Business  computers) which is said to be compatible with some ElteBooks.

Is this, like, the only pressure-sensitive pen that'll work?

How well does it work?

Is this just the HP-branded version of some Wacom pen?

[jalbrigo]

My related question is: "Is 4KL69UT the same pen?"  The only difference between the two product numbers is "UT" vs "AA", which from what I've read just denotes a difference in pricing (one being a "Smart Buy").

However, even though the quickspecs documentation (here and here) for 4KL69AA indicate it is compatible with the Zbook Studio x360 G5, the product info for the 4KL69UT (here and here) don't indicate compatibility with the ZBook Studio x360 G5.

The final straw is that only the 4KL69UT is available in the HP store...

[dtronvig]

Well, considering that exactly the same photo is used for the UT on the HP site and the AA on the B&H site I suspect that they are the same pen. I'll probably save the nine bucks and buy it from HP, who presumably have it in stock, which apparrently B&H does not.

I'm not totally shocked that nobody would get around to  updating the list of compatible models.