Since about 2 weeks now I have this smartphone in the 64GB version in use. It is stable and I had only a "crash", somehow the mail app is stuck. Calls are loud and clear, the screen is easy to read, only in strong sunlight will be difficult. The colors and contrast are purely prima feel from her. Movies (Amazon and Youtube) ran absolutely smoothly! The user interface is terribly inconvenient! When looking at specific apps rare but regularly need is on rumblättern to reach such a stupid to Anwendungsikon. I get an immediate alternative plan found. If you can show its installed apps in Appshop app you can sort them to the iPhone on multiple screens. Not quite as comfortable as the iPhone but just as functional! With a little practice, I am now so perfectly clear. Unfortunately the Appshop is very sparse, there is some buisness programs and many, many games. SportApps are absolutely rare! The current offer for Jogging / Running somewhat reminiscent C64 times, nice, but little features. It lacks the leader, here rework me were promised, but that will still take. Now Amazon is beneficial to keep the yes this is the first smartphone of the house and therefore not all apps are ready and waiting. But if announced in advance that you will come across the iPhone wanted from the throne then is but to be expected that one out in advance (!) Inform wobbles which apps the users needs. Sure, I'll go with NEM Fire tablet not jog, but for me the smartphone is paired with a Bluetooth chest strap is the first choice for running and cycling! For many, the 3-D effect to the fire phone offers perhaps only gimmick, but it's absolutely awesome! The lock screens just look Hammer and me is something important too! Just like on an expensive car seat covers and rims ... what really makes her the part and now love Amazon Department, finally brings the Appshop into shape, even as far as the updates of apps. Look at the competition like that has to be! I hope even at the sports apps, and then I can recommend the device also among my friends - and please Think about a different default user interface :) Nevertheless, I would buy it again!