Android is known for its variety of devices. One of the factors that makes it popular, is the choice of budget devices. As more people are able to afford Android devices, so they do. While the high-end Androids have impressive specs and features, the low-end ones make up a significant market share. The same is with Windows Phone and the devices it offers at a variety of prices. Usually smartphones are divided into 3 groups, according to cost (and surely, specs vary): flagships, mid-range and low-range....