Sony's flagship mobile device packs some powerful imaging features, including a rear triple-cam, Eye AF and 4K HDR video recording. It seems like a natural place to find sophisticated autofocus and video capture features given its pedigree. We were eager to take it for a spin when we received a prototype model (albeit one with essentially final image quality) in the office - take a look at how we got along.

See our Sony Xperia 1 sample gallery

Editor's note: an earlier version of this story omitted the prototype nature of the phone. We've added that information and regret the error.