A friend who always researches these things very thoroughly and goes for the best on the market, has set her heart on the new Samsung Galaxy S4. I don't know much about smartphones as I still use a steam-driven Nokia, but I did look at a few reviews of the S4 and it does seem like a superb piece of kit and well-specced, although most of its assets would be lost on me or useless.
Video: Samsung Galaxy S4 Active review - Telegraph