Are there any tips on getting the heart rate to be more accurate?
I have a multisport with a heart rate strap and used to work pretty good but lately my heart rare has been all over the place. I will start a run and it will jump to 190 thirty seconds into a run and then 10 minutes later it will drop to 40. I know these BPM rates are inaccurate. I have washed the strap, changed the battery, etc. Is there anything that is recommended?