The startup answer is very simple:
What are the images for?
If you're shooting images that you hope to put on advertising hoardings you'll need a high end camera with a dedicated lens and >£500 in lighting gear (I know you asked about cameras - but lighting is just as important if not more so).
OTOH if you're just shooting for your own fun / records, then your phone will do.
I'm guessing that because you think you might need a proper camera, then the truth is somewhere in between. And if you've read the helpful answer above, you'll now be realising that you'll need to consider lighting too.