It is a very sturdy phone, and definitely a dress while holding. Soi is a little closer you will see the technical level, the production level of the Sony is great, every little detail is as sharp and sophisticated. Xperia Z1 but 5 "but bigger, heavier and more dress Z. Sony not only upgrade the camera, but also bring a camera to travel with the Z1 lens, sensor and image-processing chips. Two advanced Sony technology that is used on Sony Bravia TVs now bring the phone Triluminos and X-Reality is quite good. Z1's screen looked greener, the better and very smooth.