Motorola newly announced its new project called Ara. This project is focused on providing modularity and customizing to the smartphones. This project allows component mix-match, so that you don't need to buy the new phone, just upgrade the module which you want to change. This also saves the money in your pocket by not buying the whole new phone. You can customize the whole phone according to your need, for e.g: if you want to upgrade the screen or the battery or camera or speakers or anything or everything.
Technology blog to get an insight of what is going around.