A easy cheap solution:
You buy one of these bluetooth adaptors for £6

Then install the torque app (android) on your phone £2 (unsure what iPhone app is)
And it has lots of cool features like real time dials for oil temp etc.. And 0-60/ 60-100 timing.


There you go, easy!
I do have Ross tech for laptop and cable too, but this app is a very quick, Cheap and decent tool worth giving a try.