If you have iDrive, Android units are a direct replacement for your existing iDrive screen. They're an all in one unit that run completely independently from your original iDrive, and add functions like;
- A separate touchscreen Android interface & device to use and download apps to
- Navigation like Google Maps or Waze
- Bluetooth streaming/bluetooth phone calls
- Reverse cameras
- Front facing dash cam
- Apple CarPlay or Android Auto
- Additional USB devices (hard drives, flash drives, DAB, etc)
These can also be added to cars without iDrive (but must have an AUX in) for the same functionality.