The Apple Watch Series 4 normally has a standard 14-day return period.
In my opinion, this is the watch's biggest win, and here's why: Have you ever felt something weird happening in your body.only to feel total normal the second you get to the doctor?
Announcing the software upgrade, Apple stated: "Available today as part of a free update to watchOS 5.1.2, the ECG app1 and irregular heart rhythm notification feature2 will help users identify signs of AFib, the most common form of irregular rhythm".
The watch can intermittently check the wearer's heart rhythm in the background and send a notification if it detects irregular heart rhythm.
Some cardiologists and other experts have raised concerns that the Apple Watch's ECG feature is unnecessary for the general population or could cause problems, including false positives. Once the the Apple Watch is done taking the ECG measurement, it will show the user a heart rhythm classification which can be shared with their doctor. At the time of the Watch's debut in September, Apple's native app with which the electrodes communicate wasn't ready for consumer use. To comply with USA regulations, Apple has also announced that it will honor refund requests related to health features for up to 45 days after purchase. It takes about a minute to setup the ECG feature and another few seconds to set up the irregular heartbeat notifications. One of the standout features is the new heart-monitoring hardware that allows the device to take an electrocardiogram (ECG) to monitor electrical activity in the heart. When there are a series of readings that are out of whack, it will give you a notification.
Apple, a well known strong advocate of the user privacy, has assured that all the data and the associated classifications including any noted symptoms will be stored securely in the Health app on iPhone.
When measuring is complete, you'll see a reading on your Apple Watch face. Users can share a PDF of the results with physicians.
"There's a huge opportunity to empower people with more information about their health", Williams said.
The wearable will categorize a hearth rhythm as either sinus rhythm, atrial fibrillation, or inconclusive.