http://wccftech.com/google-stores-trade-program-pixel/

We recently learned about Google’s Project Fi trade-in program for the Moto X4 on Android One in the US. At that time, we assumed that the program is restricted to the Nexus phones trade-in for up to $165 credit, but it later turned out to be open for selective models other manufacturers including Apple, Samsung, Huawei, Motorola, and LG.

Today, the trade-in program has gone live for the Pixel phones (visible to some users though) ahead of Pixel 2 launch, the offers don’t seem as appealing as we had expected but if you have been planning to buy a new Pixel phone then this could help you save some money. The program lets buyers trade-in their existing smartphone to save up to $388 on a brand new Google Pixel or Pixel XL. Google will be adding the upcoming Pixel 2 to the list once it goes official.