As a long-time AFib patient, I have worn an Apple Watch for several years. I have also taken and charted my Blood Pressure weekly for several years. After a hospital stay, I recently added a pulse oximeter. (I am a professor, so I track lots of things!)

David, it is not always accurate. If you want a more accurate measure of your heart rate, get a pulse oximeter. I would not worry about this if it only happens occasionally, but let your doctor know if it starts to happen more often so they can order a Holter monitor for you to wear. Hugs🤗

I use to use a fitbit until the doctor had said that same thing that it was not always accurate.

FitBit may not be a medical device but it informed me of Afib as it started and led me to a successful Ablation before I would have gone to a doctor because of symptoms. Anytime I question FitBits readings I take my pulse on my neck with thumb and middle finger and find it quite accurate. FitBit gives me a daily sleeping blood /ox reading. My old Android phone can measure blood ox on the fly and our medical meter confirms reasonable accuracy.

These are tools to be used appropriately.

FWIW … FitBit was more timely, too the point, less confusing and just as accurate as my first cardiologist at a far lower cost. 😁