Andy:
iPhone G3 full size photo record is 1536 × 2048 - I think the G4 files are
larger
that comes up as 3Mp though
http://www.esato.com/phones/Apple-iPhone+4-622
claims 5Mp.
http://www.esato.com/phones/Apple-iPhone+4S-866
claims 8 for the 4s
My 6 year old old Samart i-Mobile 902 has a 5Mp cam.. at the time Samsung
had an 11Mp on the market
http://www.esato.com/phonephotos/index.php?make=samart&model=i-mobile+902 -
I picked the largely-unheard-of-in-the-west Malaysian phone as it was
manufactured by Sony and had one of the nicest cameras in a phone at the
time. On the whole it's been fantasic as a camera that's been there when I
want to snap, but again - small sensors...
I find though that snapping isn't really my thing I tend to take ages to
make pictures.
k
(esato is a neat site for those wanting to evaluate cameras in phones)