It offers a relatively big color display and delivers a ton of useful data. The best OBD-II scanner we used and tested is the Innova CarScan Pro 5210. One of the best OBD-II scanners is no longer an unaffordable luxury, but something you need to have in your car. Whichever type of device you choose, there are several high-performance OBD-II scanners that cost less than $100. Wireless OBD2II scanners plug into the port, but then connect via Bluetooth to a smartphone or tablet.Handheld OBD-II scanners come with their own screen and cable to plug into the car's OBD port.
