Cardiologist Questions Heart Rate

How accurate is the heart rate shown on the fitness trackers?

My fitness tracker shows an increased heart rate for me even while I am resting. Can this reading be treated as accurate? Should I go for a detailed heart check up on the basis of these readings?

3 Answers

They are not very accurate. You can start with an ECG or a holter to see what are your average heart rates.
I think they are good