I may be subjective in my opinion, so I invite you to test a model to see it with your own eyes
I used three years ago Xperia Ray, which is reliable even today, since it`s used by my father, and right now I`m using Xperia Z2
Generally, Xperia series is enhanced with advanced camera and its battery lasts more than the average models
What you can find unsatisfactory is the reduced number of Sony apps, comparing with Samsung and HTC
