What you’re experiencing is related to how the biosensor is picking up your HRV signal, and small setup details can make a big difference.
To improve your HRV readings, please try the following:
Make sure the chest strap sits flat, snug, and level on your body
Fully soak the ECG pads (5–10 seconds, rubbing water in well)
Position the belt slightly higher on the chest so it maintains consistent contact
Lie still in a quiet environment during the assessment (no movement or talking)
You can also try briefly plugging the sensor into the charger to help reset it, then start a new
assessment.
These adjustments help ensure a stable signal and more accurate HRV readings.