It is the minimum (that's why it's cheap!) But it does it well. A small flaw: ergonomics is average because buttons are at the top of the screen is difficult to see the screen when you press the buttons (fingers pass before the screen). My only real complaint is valid for all Garmin: Garmin connectors are not standard so you have to buy expensive cables, of around 30 to 50 euros, to be able to connect his GPS DSC VHF for example. For Linux users: quite usable (with USB cable) with OpenCPN software to record and store a track road.