I just got the XA last night. I had a Z3 (broke and no longer replaced at T-Mobile), a Z5 Premium that stopped working (international no warranty) and now this. I'm done spending tons of money on "high end" phones when this little thing does a lot of the same things. Size is perfect, but the only features it's missing that I liked from the Z5P are fingerprint sensor, and screen record. All the extra things like 4k recording, live record to YouTube I can live without. It still has the audio enhancements and a decent camera with the new quicker camera. The Z5 compact is a good little phone don't get me wrong, but what you're gonna get on that isn't worth the extra 250. I wanted the xperia x performance, but gave this a shot and it's great. Just need to do a real day battery life test. It's running out now cuz I can't put it down. Too busy learning what it has and doesn't have from my Z5P. I say keep it my friend. Oh yeah and waterproof on Z5 series was one of my reasons for getting that. These I hear are unofficially water resistent.