Bike Computers and iPhones

I have this cheap little wireless bike computer for tracking speed and distance.  I learned today that setting it on top of an iPhone, even briefly, isn’t good for the data that it manages.  The iPhone emits enough wireless signals to confuse it.  The little computer begins recording erratic and erroneous data.  It even said I had hit 56mph!  I wish!

Bike Computer
Bike Computer