![Accuracy of the Apple Watch 4 to Measure Heart Rate in Patients with Atrial Fibrillation - IEEE Journal of Translational Engineering in Health and Medicine (JTEHM) Accuracy of the Apple Watch 4 to Measure Heart Rate in Patients with Atrial Fibrillation - IEEE Journal of Translational Engineering in Health and Medicine (JTEHM)](https://www.embs.org/wp-content/uploads/2020/02/2020-02-05-18_09_08-Graphical_Abstract_AW4_HR_IEEE_102619.pptx-Read-Only-WPS-Office.png)
Accuracy of the Apple Watch 4 to Measure Heart Rate in Patients with Atrial Fibrillation - IEEE Journal of Translational Engineering in Health and Medicine (JTEHM)
![Apple Watch News: Apple Watch flashes red alert, saves woman's life whose heartbeat had later stopped for 19 secs while sleeping - The Economic Times Apple Watch News: Apple Watch flashes red alert, saves woman's life whose heartbeat had later stopped for 19 secs while sleeping - The Economic Times](https://m.economictimes.com/thumb/msid-97049524,width-1200,height-900,resizemode-4,imgsize-30544/smartwatch_heart-rate_istock.jpg)
Apple Watch News: Apple Watch flashes red alert, saves woman's life whose heartbeat had later stopped for 19 secs while sleeping - The Economic Times
![Has anyone gotten a high heart rate alert on their watch from stress? Heart rate reached 150 today apparently from a challenging colleague 🤣 : r/ AppleWatch Has anyone gotten a high heart rate alert on their watch from stress? Heart rate reached 150 today apparently from a challenging colleague 🤣 : r/ AppleWatch](https://i.redd.it/qqnc67i1ttt91.jpg)