Upgrade advice: Camera, GPS & battery quality are all that matter.

Hey guys,

I'm looking for some advice on upgrading.

I don't care about platform, or UI quality really. If this was my fantasy world, I'd rather an embedded OS with proper GPS software, basic photo preview, call and text ability on low-res, black & white screen.

In fact, I'm not really bothered by the touchscreen either.

You can probably tell I'm a tightass; but could you point me in the right direction? I know of the Lumia 1020, but its priced at the top end and wonder whether there's anything else worthwhile but cheaper?