ECG+ | Your Watch ECG Reader

I have been an ECG+ subscriber since March 2020. I did not have any reason to buy the premium subscription, I was just curious. I was 64 then. Both my parents had significant heart problems. Because of the pandemic I decided to keep an eye on my heart. From March 27, 2020 until January 27, 2026 I did not have any significant issues other than an occasional PVC or skipped beat. On January 28th my watch picked up an atrial fibrillation event. I initiated 3 more readings, all resulting in an AF indication. 6 more scans on the 29th, with 5 AF readings. I notified my doctor who had me in the very next afternoon. Their ECG machine verified what ECG+ and my Apple Watch had reported. I was in the ER an hour later and was diagnosed with Atrial Flutter. The following week I was at my cardiologist who verified my watch and app readings, plus my doctor and the ER’s readings. Yesterday, February 24, 2026 I had a cardio version, which shocked my heart back into a normal sinus rhythm. This was after nearly a month of continuous AFlut readings every day, new meds to thin my blood and stabilize my heart for the procedure! I absolutely believe ECG+ saved my life by reading my Apple Watch’s sensors and reported my AF reading. I would not have known until it might have been almost too late. Needless to say, Great Job with the app, 5 Stars!!!, and thank you!

This software seems to be based entirely off of Apple Watch ECG feature of putting your finger on the crown for 30 seconds. During that time you have to be still, which means you can’t use it during heavy exercise. I was also under the impression Apple Watch couldn’t detect PVCs. So just how useful the ECG feature is on Apple Watch is still a mystery to me. I do own Apple Watch 9, and every usage of ECG says “this ecg doesn’t show any signs of…”. In contrast, hospital grade devices, like Holter, are worn over the heart for 48 hours as you live your life normally, exercise and all. The entire period of time is later analyzed. In terms of some metrics a consumer grade chest strap, like Polar H10, is considered superior to wrist worn devices, such as staying connected while moving around, providing continuous readings, etc. Why doesn’t ECG+ have an option of directly collecting chest strap readings for a variable duration, like hours, even while exercising? In my opinion, this ECG+ isn’t built on the strongest foundation and I can’t see how it’s worth $120.

I am new to Apple Watch. Little did I know that the day after I got the watch and had put this app on it, I would be using it to check my heart. I had a slow heart rate with some premature ventricular contractions that did not perfuse and was short of breath and did not feel well. I know that you can’t use a strip like this to diagnose but I ended up going to the hospital and it let the doctor know more about what I was experiencing. I had printed copies of several of my episodes. The doctors and nurses were impressed that the ecg tracing was so good coming from a watch. Thank you!!