Trusted Reviews have released their review on the Z1
Dedicated camera button for underwater shooting
Curvy. more comfortable design
Speedy, overall performance
Disappointing low-light camera performance
Average viewing angles
Flimsy latches protecting ports and connections
Should I buy the Sony Xperia Z1?
The Sony Xperia Z1 is a phone that addresses the key issue that plagued its predecessor, the design. The curvy look is a subtle change and makes the 5-inch smartphone so much more comfortable to hold and operate, but that's not to say it's not big. Adding a camera button makes having a waterproof design more useful now that you can actually take pictures and shoot video underwater. It’s one of the most powerful smartphones we’ve had the pleasure to test. The camera is not as ground-breaking as the Nokia Lumia 1020, but it's still a great performer. Throw in the option of the QX100 and QX10 lens accessories and you can get something closer to a high end compact camera. Putting it up against its 5-inch rivals it more than matches the Galaxy S4 and the HTC One it in terms of performance and design. Sony’s take on Android is a great alternative to Samsung's TouchWiz and HTC's Sense UI once you get to grips with it.
The Sony Xperia Z1 is powerful smartphone with an improved camera and elegant design to make it one of the best 5-inch smartphones to currently buy.