To start, I'll give you a small summary of the phones I've had in my possession before passing to Xperia Z3.
I had the chance to try for more than a year the Xperia Z's first name, the HTC one m8 for a few months and LG G3 for a few weeks ..
First, talking about design!
The only real change I observed on this monolith from its ancestor is located at the edges of the phone.
Indeed, these edges have been rounded, which allows a better grip but makes the phone slip, let me explain.
The surface of the phone is now so smooth that he sometimes slip gradually over a surface that at first seem perfectly flat, which has brought me to attend splendid hovers the early days ... (he n 'However, no scratching)
Until I do a little more attention.
I also plan to procure a shell to overcome the problem.
Then compared to the Z position of the speaker in front is a real plus.
Speaker which incidentally is actually far behind the quality of those found on HTC one m8.
The rear camera sensor gives me satisfaction, I can take photos (for my taste being a total stranger to the world of user photo) pretty cool even in low light conditions.
The front sensor is however much less efficient in low light that makes my snap (Snapchat) absolutely ugly from the time that the sun sets.
Interface side is Sony, the overcoat is nice and fluid, nothing new except some news about some applications and profiles improved stamina can actually improve the autonomy of the terminal.
Speaking of autonomy, Z3 is pretty good, I would easily two days with my personal use (lots of SMS, a little surfing on the Web, FB or YouTube).
Finally, as you probably know, it's waterproof! Important parameter for me as a native of Guadeloupe and sometimes go home to enjoy the beach ..
It's a real pleasure not to have to always worry that any dirt or drop of water comes touching their phone.
In summary, this is a good waterproof smartphone (or almost) bringing no real innovation but doing very well his taf.