I've got the Sony xperia z and it's given me 12 months of trouble free use so far. It's been shoved in a jersey pocket during driving rain cycle rides, operated at 3300 meters in -20 degree c, the camera is great, gps (strava) has never failed and I honestly can't fault it. I was nervous returning to Sony after a bad experience (or two) but now the xperia z1 is looking tempting!