The sun is shining, the birds are out, and we're drowning under a pile of smartphones and caffeine tablets in the biggest exhibition hall known to humans. Yes, we're back in Barcelona for MWC 2015.

It's set to be another stonker, but as usual it's Samsung that's trying to steal the headlines. It's gearing up for the launch of the Galaxy S6 and possibly a curvier S6 Edge too.

Expectation are high for the big S, following months of leaks, rumours and speculation surroundings its new phones. Can it deliver a titan flagship for 2015? Will the Edge have, well, the edge over the S6? Does anyone even want three displays?

All of these burning questions are soon to be answered, and we'll be bringing you all the news as it breaks. So keep an eye on this live blog as we'll be updating live from Samsung's Unpacked conference on Sunday March 1 at 17:30 GMT/9:30 PST.

• Everything else going down at MWC 2015 this year (spoiler alert: there's quite a lot)