Here's what your Fitbit heart rate variability actually tells you - Engadget

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Here's what your Fitbit heart rate variability actually tells you

Your usual numbers matter more than anyone else's.

By Husain Parvez Nov. 1, 2026 11:45 am EST Google Add Engadget on Google: Google Discover

Let's say your Fitbit reads 62 beats per minute (bpm) for your resting heart rate and 24 milliseconds (ms) for your heart rate variability (HRV). The first number is easy enough to understand, but the second is a little harder to interpret, particularly if you know someone whose reading is 80 ms.