I want to upgrade to gain the heart rate monitor.


However, the Bravo's altimeter / barometer leaves something to be desired. When I worked in a multistory place, it couldn't determine how many stair levels I had traversed during the day. Where I walk now, it has issues with fixing my altitude (there is an uphill segment and a downhill one.)

Does the Charlie resolve this? Perhaps it's my error somehow, but all I do is look at it; there doesn't appear to be a calibration.

Thanks!