My Forerunner 35 seems to be calculating calories burned at a very low rate. My sister and I have the same watch, and although we are different builds, height, weight etc. When we do the same workout, my calories burned (for a 50 minute intense workout) are 160 whereas hers is 460.
I have consistently had this issue and have only had the watch about a month. All of my details are inputted correctly. Any insight?