#apple Watch electrocardiogram and irregular heart rate features are available today


Today, with an update to watchOS, Apple is making its electrocardiogram (EKG) reading feature available to Apple Watch Series 4 owners. It’s also releasing an irregular rate notification feature that will be available on Apple Watches going back to Series 1. Both are a part of watchOS 5.1.2.

When the Apple Watch Series 4 was announced this past September, the most significant new hardware feature besides the larger screen was probably the ability to take an EKG directly on the Watch. And while the electrodes on the digital crown and the backside of the Watch were there, the software to support them hadn’t been released. Now it’s here.

To take an EKG, you open up the EKG app on the Watch and lightly rest your index finger on the crown for…

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