> Pixel is also disqualified for me by the same reason.

How so?

I think all pixels starting from 6 or 7 have DisplayPort output through USB C.

I watched a movie the other day with my projector connected to my pixel 10 running grapheneOS. Other than getting a phone call halfway through the movie and a few hiccups selecting the audio Jack output, everything ran smoothly.

This is good to know, but they certainly do not advertise this feature as existing.

On Google Store there is no information about this and other sites, like Gsmarena, also do not have any information on it, unlike for the smartphones from other vendors that have DisplayPort.

On some older Pixel models, it has been discovered that DisplayPort existed in hardware, but it was disabled in software by the Google operating system. It could be enabled only by replacing the OS. I see that you also do not use its native OS, so this condition may have remained true.

About newer models, it was supposed that the hardware support might have been removed.

How did you discover that DisplayPort exists on your Pixel 10?

Was this mentioned in its user manual?

Do you have the plain Pixel 10 or some Pro version?

Do you happen to know whether you have DisplayPort 1.2 or 1.4? I.e. which is the maximum resolution at which you have used it, can it do 4k @ 60 Hz on a monitor or projector?

Did you have to use the audio jack because the smartphone does not know to send the audio through DisplayPort, or was that a limitation of your projector (or perhaps of some DisplayPort/HDMI converter that you may have used)?

Having this feature and not documenting it for the potential buyers is even more stupid than not implementing it, as this can lead to lost sales. Like with Fairphone 6, I have considered buying Pixel 10, which at least has USB 3, but I have eliminated it from the possible choices for the lack of DisplayPort.

EDIT:

Googling now, I have found an article at Google's "Pixel Phone Help":

https://support.google.com/pixelphone/answer/2865484?hl=en

which says "Connect your phone to a display device (Pixel 8 and later)",

So indeed, DisplayPort is supported officially starting with Pixel 8.

Nevertheless, it says nothing about what kind of DisplayPort is supported, i.e. which is the maximum resolution that is achievable on a monitor/projector, and this help answer is well hidden, you have to search specifically for it, instead of having clear technical specification of the Pixel phones, easy to discover by potential buyers.

Moreover, it can do only screen or window mirroring, instead of having a desktop mode like other vendors, so I think that it probably is limited to 1080 lines, which is the resolution of Pixel's screen (non-Pro models, but Pro are only slightly better). In that case, it still does not do what I want, which is a 4k resolution on a monitor/projector (it can record 4k movies after all, so I would have expected to be able to play them).