I guess mine would be considered a " with sensors " built into the unit .
It gives me numbers, im not super onto power training its just nice to know what im doing . i can see my growth and progress and it makes me happy which gives me the mental boost to keep doing good and just snow ball the energy into progress .
The numbers are innaurate mostly due to tire pressure . i definatey need some on bike sensors . there are so many options .
I like the tacx app set up but the uploads are killing me its so glitched for me i cant tell when it will upload .
I was looking at the iq2 power meters but i dunno if they are any good . ?
But i do think it would be more cost effective to train heart rate first from a pure numbers point .?