I am on my 3rd Charge 5 in 3 years. This one has to be reset every 2 to 3 days or it won’t properly track my data. For example I did an hour walk this morning at a good pace and it registered 0 zone minutes and only 48 calories. This should have been about 320 calories and 75 zone minutes per my average. Is this a sign I have to go on to Charge 5 number 4?
