I needed this because my older phone was getting outdated and I found it too small. I love the speed and the privacy that it gives you.
Allows you to choose what permissions you want to give the different applications. I purchased this as an unboxed piece from ebay so the price was a bit lower than the new device but I did not have any issues. I chose this over other devices as this is rated as the best device in that price range and had all the features that I needed. No wonder it was called the flagship killer!