Review : FitBit Sense … ✿ ✿ ✿ ✿ ✿ ✿ ✿ [rwp_reviewer_rating_stars id=”0″] Introduction … The following is a review of the FitBit Sense. Bought because, as someone with ME and someone who always has PEM, after reading about aerobic and anaerobic threshold, I decided that I would try and stay within my own threshold in order to avoid…