# Changing Heart Rate Zones

**URL:** <https://wahoox.forum.wahoofitness.com/t/changing-heart-rate-zones/16244>\
**Category:** SYSTM Software\
**Created:** [January 22, 2022, 4:39pm UTC](https://wahoox.forum.wahoofitness.com/t/changing-heart-rate-zones/16244 "2022-01-22T16:39:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![edride](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/edride/32/9222_2.png) [@edride](https://wahoox.forum.wahoofitness.com/u/edride)\
**Post date:** [January 22, 2022, 4:39pm UTC](https://wahoox.forum.wahoofitness.com/t/changing-heart-rate-zones/16244/1 "2022-01-22T16:39:03Z")

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I have been struggling with my Tickr correctly measuring my heart rate. I think it the bluetooth issue is resolved. However I just did a 4DP Test a few days ago and my heart rate was totally wrong, more than 20 beats per minute wrong. The problem I have is that now all of my heart rate zones during workouts are wrong. Can I alter the zones or do I have to do another 4DP Test to correct the zones?