I would like a phone which will allow me to take meeting notes or scribble any ad-hoc note with a stylus pen.
I have tried out the Samsung Note5 but am struggling to find any other phone which has a built in stylus.

I had been waiting for the Microsoft 950 but whilst it was generally reported there would be a pen, it didn't eventuate.

So, I am thinking can I use a stylus on say the Nexus 6P (since there is the special Geekzone offer which has just been advertised).
Naturally, the pen would not have a holder for it but my questions are:

Can I use a pen such as that found on the Note5 and if so what technical specs. should I look for.
Which brand of pen would be good to buy?

PS At present I have a Nexus 7 (2012) and some time ago bought a pen, but that has a big rubber tip and not suitable for taking notes.