>>51087224Don't leave you're screen on when you aren't using it.
I've got a Samsung Galaxy S4 that's been running strong for two years and the only burn in I've noticed at all is where the status bar is.
Now my Samsung Galaxy Nexus has burn in that would bother a blind man.
The 6Ps screen should be pretty high quality, so don't worry about burn in if you aren't idioticly leaving an image on your screen at all times.