I think both the Pixel and iPhone Plus take some of the best mobile camera photos out there. The Pixel is much, much better at low light. However, the iPhone reproduces colors in a more realistic way. Most Pixel photos usually seem to have a harsher color tone, brighter/whiter, very cool like LEDs. The iPhone seems to favor a more warm color temperature, which I think generally produces worse low light photos, but more accurate color reproduction.
I think both the Pixel and iPhone Plus take some of the best mobile camera photos out there. The Pixel is much, much better at low light. However, the iPhone reproduces colors in a more realistic way. Most Pixel photos usually seem to have a harsher color tone, brighter/whiter, very cool like LEDs. The iPhone seems to favor a more warm color temperature, which I think generally produces worse low light photos, but more accurate color reproduction.