Apple Watch Electrocardiogram App and Irregular Heart Rhythm Notifications Available Today

Apple Watch ECg

Using the ECG on Apple Watch Series 4 is dead easy

While the ECG mechanism is limited to Apple Watch Series 4 models, watchOS 5.1.2 brings to almost all Apple Watch models (Series 1, 2 & 3) a useful new notification feature created to inform wearers if they have an abnormal heart rhythm in the first place - which is among the most paramount symptoms indicative of Afib, and/or a host of other underlying health anomalies.

But although the hardware introduced a futuristic new aesthetic to users, the device's headline act was certainly the new health features it brought to the table. However, the ECG and irregular heart rhythm detection are only rolling out to the US. The study found the ECG app on Apple Watch demonstrated 98.3 percent sensitivity in classifying AFib and 99.6 percent specificity in classifying sinus rhythm in classifiable recordings.

As helpful as these features are, Apple has made it clear that they are in no way, replacements for actual medical personnel. We won't be getting it in Australia. On Thursday, Apple will release a software update for Apple Watch owners that adds an ECG app to the company's latest smartwatch. You'll find an option to export a PDF of it, which you can share with your doctor.

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Just take your results with a mild dose of healthy scepticism.

However, it's worth noting that the Watch only records a basic single-lead ECG, and so can't detect a stroke, heart attack or other heart conditions like the 12-lead ECGs taken at a doctor's office. Keep in mind that this feature is only limited to those with Series 4 watches and those residing in the United States only. You must have the Watch placed on its charger, connected to Wi-Fi or LTE, with at least 50-percent battery to download the update. It would alert the user with a notification if it detects an irregular rhythm on five rhythm checks over a minimum of 65 minutes. If you don't see the update right away, it might take a hot second for the rollout to reach you-I haven't gotten it yet despite multiple refreshes.

The feature was first announced by Apple back in September, alongside FDA approval for De Novo classification for the ECG app.

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