Can I navigate through the MoGo 2 Pro (New) interface with a smartphone?

Yes. The MoGo 2 Pro (New) is equipped with the official Google TV system. Therefore, the "Google Home" app is a better option: Please download the "Google Home" app on your phone and pair it with MoGo 2 Pro (New), using the same WiFi connection. You can then use your phone as a remote.