When I attempt to calibrate my npe runn device, I find that it’s out by at least 1.5 kph.
Aside from that, my biggest issue is that a comfortable run for me is when my treadmill is set between 5 and 5.5, however the avatar is still showing a very slow walk. It only starts to run when I increase the treadmill speed to a speed that I’m not capable of doing.
Use the Configurez App and it should nail the speed within 0.1
Sometimes a little off as the belt is configured without weight using the app. I have never needed to configure the speed in Zwift with the Runn.