My 6P arrived with a sticker on the back with the serial and model numbers of the phone and a barcode; how difficult is it to remove? I don't want to pull at it only to find it's taking the finish off the phone or some nonsense.
Mines is still on since I have a case covering it but it is no big deal removing it if I go caseless. S/N is inside of phone and on box and I have receipt of purchase so no worries about support.
No worries of support as that sticker fades over time and you can no longer read it. Kept it on my Nexus 4 and got to the point that there was no ink on it.