The Orion is a hobbywing but not the v3 it is almost same but not quite there and is not running new software so has less adjustments.
The hpi flux is a hobbywing v3 just rebadged.
I have 2 hpi flux speedos that I have just replaced my LRP sxx with and the hpi/hobbywing v3 is by far the best speedo I have ever seen or used.
The throttle response is super smooth and the adjustments are out this world.
Also don't forget the special on/off button inbuilt to speedo its worth just buying for that lol
