• support@fourthfrontier.com
  • Loving the sensor and the app. Only a week into it but very useful. Can anyone recommend a source of info for a layman’s guide to ECGs ? Thanks

    1 Comment
    • Yes! The most Basic EKG book published is by Dale Dubin and it’s called Rapid Interpretation of EKG’s.

  • Anyone know how to delete months of data on your phone instead of 1 at a time?

    Profile PhotoProfile Photo liked this
  • Hi community, does anyone know if it’s OK to use the FFX2 device in a Finnish Sauna at around 85-90C degrees?

    1 Comment
  • I very much like the summary of time spent in each heart rate zone. Is it possible to have a weekly summary of time spent in each zone, rather than just the time for a given activity? For example, one might have an aim to spend 80% of overall training (rather than for a single activity) in zone 2.

    Profile PhotoProfile PhotoProfile Photo +2 liked this
  • How do I set the default activity in the APP, when I finish a workout and open the APP to sync the activity seems to be randomly selected and I have to chnage it

  • Load More Posts