I don't own a power meter, so I use some data fields to estimate my power. But I'm a little unsatisfied: I would like to see my average power of one lap, but no power estimator data field out there seems to be able to do this (or maybe it's simply because I only own an edge 130, I don't know). So... does anyone know a data field which can do this? Or is this undiscovered territory, which any developer might want to conquer... Any way, I'd appreciate if I could be helped out.