So I’ve got a new venu 2 and I notice if i select ride or run / walk my heart rate seems fairly accurate goes from 80s to 150-60s
However if I pick cardio and say walk on a treadmill I’m getting readings of 170-220 highly inaccurate, the treadmill heart connector shows me at around 80-90 for the same activity ? Any reason why cardio selection is so wrong