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The display shows if you are behind or ahead of your personal best (or KOM/QOM if you are doing the segment for the first
time), as well as your speed/pace and distance left.
After you've completed the segment, your watch displays your time, and the difference to your personal best time. The PR
symbol is displayed if you set new personal record.
Wrist ECG measurement
Grit X2 Pro has a wrist ECG sensor that enables electrocardiogram (ECG) signal recording using your watch. The wrist
ECG sensor records the timing and strength of electrical signals generated by your heart using two electrodes, one of
which is on the top left button and the other on the back of the watch. The ECG signal is derived from the voltage
difference between the two electrodes. With the ECG test, you can record your ECG signal at rest in just 30 seconds. As a
result of the test, we give you a graph of your ECG signal, as well as your average heart rate, heart rate variability, beat-to-
beat interval and pulse arrival times (PAT). You can track these to keep an eye on the health of your heart and arteries.
The wrist ECG measurement allows you to perform Orthostatic test, which is based on measuring heart rate and heart rate
variability, without a paired Polar heart rate sensor.
The Wrist-ECG sensor measurement feature is not intended for any medical use, diagnosis or treatment
(including self-diagnosis or consultation with a doctor) and the data should not be used for any medical
purposes.
Performing the test
For accurate measurement, we advise you to wear the watch at least ten minutes before the measurement.
Make sure you wear the watch on the hand chosen in the settings. You can check the setting from Settings >
Physical settings > I wear my watch on (Left hand / Right hand). Take the test sitting down and always at the
same time of day. This feature is only intended for measurements taken at rest. For more information, see the
support document Wrist ECG measurement.
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