Originally Posted by
Weston@HPTuners
For Android, the OBDLink MX Bluetooth is what we use the most. The less-expensive OBDLink LX Bluetooth model should work as well. The Bluetooth versions of the PLX Kiwi 1 & 2 will also work, but the newer Kiwi 3 will not work at this time (it uses an odd form of Bluetooth).
For iOS, the GoPoint BT1 or BT1A is the only supported Bluetooth option for that platform. The other iOS options will be WiFi-based, and there is an OBD Link MX WiFi model available, as well as the WiFi versions of the PLX Kiwi 1 & 2 WiFi (the 3 is not WiFi and does not work at this time).