According to customer purchasing experience, the bmw icom A2 was asked more than the other two, how come it the best one, the BMW ICOM A2 it is the new generation for icom, this is no doubt. BMW ICOM now the latest Version is: 2015.08, for the ISTA-D version is: 3.50.10 ISTA-P: 3.56.1.002. The hardware also is the latest version, and the software ICOM A2 HDD system is: windows 7, 64bit, this basic parameters can be sufficient for buyer to use on their computer, cause now the laptop all are windows system, therefore, I think this also the best choice for you.
The BMW ICOM A and A2 diagnostic tool from obdmore.com are in high quality and nice service. You can use them to works on latest bmw group vehicles with latest BMW diagnostic software Rheingold BMW ISTA ISID and so on.
BMW ICOM A2+B+C ISID Diagnostic Tool Advantages:
1.Faster processor and bigger storage for better expression.
2.Robust construction makes it can works in compilicated enviroment.
3.The Part B of A2 will be covered by a soft gap, it is for avoiding dust & oil & water.