iPhone 6S Plus space grey spot fading

[jkeating2005]

I use my phone without a case and recently I've noticed these "fading" spots on the back. Has anyone else experienced this? does anyone know the cause?

 

[duction]

Looks like where your fingers hold the phone, sweat maybe?

 

[zawark8]

Replace it

 

[rugmankc]

Looks like where your fingers hold the phone, sweat maybe?

Or left overs from that last cheesburger

 

[Anand953]

Unheard of in the 6/6s lineup.. Get it replaced if it isn't your fault
[doublepost=1452873848][/doublepost]Unheard of in the 6/6s lineup.. Get it replaced if it isn't your fault

 

[arggg14]

Never seen that before... Have it replaced.