Needs a MicroSD and Raw support.
This is a genuine question: Why do people request RAW support on a phone?
I used to be a bit miffed about not having it on my Z3, but then I asked myself, apart from wanting "the latest thing," what use will I have for RAW support? I only have a 64GB micro SD card, and 4K video tend to eat space for breakfast so where will I have space for the larger RAW photos? More importantly, will I sit for hours after taking the photos and mess around editing the photos with all the various tweaking options that RAW provides? My answer was no.