We see the USB-C port and a right cutout that looks to be a speaker and not the SIM card slot. (If Google is testing these devices, the tray would presumably be in place.) As such, this rules out the ...

Are the Google Pixel 6 Pro and Pixel 8 Pro waterproof? Yes, to a degree, since they share an IP68 rating. You shouldn’t swim or shower with them though, at least not without a water-sealed case.