Fitbit (One or Zip model) OR new Polar FT4?
Question: Polar FT4 heartrate monitor (I already have an HrM but this is better) OR... A new Fitbit? And if you say fitbit, is it worth it for the fitbit One or just go with the Zip model?? I know what each one does I'm just trying to make a good decision... I really want both! Haha.. Help a sister out :)
