Six Way Smartphone Camera Shootout
These devices where pitted against each other in a pretty comprehensive camera shootout.
In random order you have : the lumia 1020, iphone 5s, htc one, note 3, lg g2, xperia z1.
Obviously the winner was Nokia's 1020, perhaps that is not such a surprise; a surprise is how relatively poor the 5s camera is. I mean it still records mono among other things.
If you're interested read GMS Arena's shootout here.