Game looks different on device compared to Game View

Hello everyone, I got my 2D game quite working, so I decided to try it on my Android phone.
In Unity I have been checking it by using a 600x1280 resolution and the whole scene fits the screen. When I run the game on my phone, though, the scene is "cutted" in width and the elements aren't fully displayed.
My phone has a resolution of 720x1280, so the scene should fit correctly if it fits in the 600x1280 resolution in Game View.
Where could the problem be? I don't really know what to tweak to fix this.