Sat Nav Bluetooth Phone People will not always agree when it comes to the most important features of a mobile phone. Some will say that a smartphone is essential. Others, however, will reason that wanting and needing a smartphone is not universal at this point. There are also people who will say that a 12MP camera is ridiculous and that a 5MP camera is more than perfect. But no matter the points of disagreement, most people will agree that a Sat Nav with Bluetooth phone is not at all useless. Most people will agree that a phone with Sat Nav and Bluetooth has two of the most important features any mobile phone can have.