The delivery of course, includes not only the smartphone itself with a battery power supply, a USB cable, earphone and a very brief Quick Start Guide. To operate the unit you need a micro-SIM card, and it is possible to extend the memory available on your smartphone through a memory card.
This Smartphone I have now for several weeks and am very happy with it. I am at all familiar with smartphones only recently and knew before the Y550 only a smartphone with a different operating system. The Y550 with Android is as Erstsmartphone in my view highly recommended. Even for me as a layman commissioning, settings and handling were hereby easily and all is well. Nevertheless, I find it a pity that included only one quick guide. Here I would have liked a detailed manual in printed form during the delivery. By design, the Y550 is nicely done: Even if it is only made of plastic, it does not look cheap. The smartphone fits comfortably in your hand and with its 13.3cm x 6,8cm x 0,95cm also in terms of size is a good choice. With approximately 155g the weight of the device is okay. The whole process from the housing to the side buttons is impeccable. The touch screen covers almost the entire size of the device and reacts immediately to touch. The sound quality for calls in both directions very well and the images that the camera delivers, are also good. The Y550 you can quickly browse the Internet, and this is also very good quality, completely smooth with no dropouts. Also I like good that the battery lasts for a relatively long smartphone: this is of course dependent on the type of use, but with daily phone calls, SMSs so excessive in the Internet reaches the battery with me 2 or 3 days. For the price definitely a very good smartphone and thus full of me 5 stars.
SUPPLEMENTARY 02/16/2015: I just saw that there are now download on the manufacturer's website is also a German detailed instruction manual as PDF.