Google's future phone

Google is moving to it's next harware project "Project Ara", it's a modular smartphone that can be customized by swapping out individual pieces, such as the battery and the camera.

The phone will come in three sizes, ranging from mini to "phablet," and it will run Android OS.

The objective is to let users customize their own devices, wich leads them to create a phone that lasts longer than current smartphones.
Instead of remlplacing your old phone by a new one, you could just upgrade the parts you care about, like adding a fingerprint sensor or a better camera...