My son had chosen this device and I was skeptical whether the combination mobile phone and Windows 8 works well. He has prevailed and is very satisfied with the device. The switch to a different user interface, he had no trouble. Similarly problems was the installation of the necessary apps. The instructions for Windows are explained clearly for parents. I was very pleasantly surprised that the application Complies with parents was needed for some settings. The Farbwiedergebung is brilliant. The operating system is running without interruptions / delays. Personally, I find the device almost a bit unwieldy and bulky, but the user is very satisfied. The criterion "fits in your pocket" is fulfilled. Round I can only recommend the device for the price.