All modern touch screen phones are compatible with a stylus. I'm sure it would be harder to find one that isn't. The accuracy may not be the best on budget models.
Unless you mean _is a stylus / pen included with the phone_?
Opinion here, but capacitive styluses suck. I wouldn't bother with a stylus unless it was something like Wacom or Apple Pencil tech.
I have a Samsung Note. It has the best stylus on a phone.
(I also find it funny the Apple Fanbois decided to downvote my initial comment, when I was clearly showing that Apple is 'behind the curve' in this respect. Gosh, I used to work at Apple. I find this amusing.)
Even though, that is very cool line of work and I’m sure I would be similarly biased for the tech I helped form, but it is simply not a general requirement as shown by very very few phones having them.
Samsung has some phones that have the necessary screen support for their styluses, sometimes even if the phone didn't come with one, but that's only in very few models.
I can currently use the Apple Pencil as a _dumb stylus / pen_ on my iPhone 2022 SE (not that it's necessary but just to see if it can be done).
I have an iPPro + Pencil, and it is astonishingly good. It is no 'dumb stylus' on the iPPro. The exquisite detail one gets from a writing implement is not quite replicated with the Pencil -- but! The fact that Apple does advertise the Pencil and its features is a hopeful sign that we will continued to see more, and more sophisticated Pencils & apps that use them. I hope.
How can you do that? My apple pencil (the new gen) doesn’t even register as a dumb stylus on my iphone 12 pro max.
AND, when you intentionally remove it, by clicking, it pops out and the Notes app is automatically fired up.
Apple just doesn't do this on iPhones. Why not?