• support@fourthfrontier.com
  • Can I go into the sauna with this device on?

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    • Thank you for reaching out to us through The Community
      We would like to let you know that the device has been tested and certified okay in a temperature of a maximum of 55 degrees Celsius. We would not suggest it to be used in any environment beyond the tested temperature.

      Operating : 0 – 45 degC,
      Storage : -10 to +55 degC
      We hope your query…Read More

  • So far im liking the hr monitor

  • I am a new X2 user. I am recovering from surgery and so have not had full speed workouts yet. Will X2 calibrate my Zone parameters as I get back to full speed based on my personal data such as highest heart rate. My current zone ranges are reading as follows: 1: 143 (So far the highest heart rate I have recorded is 135.) or are the…Read More

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    • Hi Scot,

      Thank you for your question, and welcome to the Frontier X2 community!

      For your reference and to help you better understand how heart-rate zones work on the Frontier X2, we are sharing the website link for the Heart Rate Zones below. This will give you a clear idea of how the parameters are calculated and when manual adjustments may be…Read More

  • Is there any best practise info on how tight the strap should be for wearing around the house, running and cycling? Should I be able to easily get x amount of fingers underneath the strap when on?

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