And the best mobile phone camera...
Is still the Nokia 1020.
It's not just the resolution (41 megapixels), it has tremendous dynamic range, very low noise which also had a nice quality to it and produced RAW files something other phones didn't catch up with until years later.
(Go ahead, mock Windows Phone as I am sure every iPhone fanboi and Android droid will but it still the best user interface. The only thing wrong with it is that Microsoft is working very hard to degrade the user experience to the point where people just give up in frustration.)