At the end of October, the Grandmother of an Apple user in China felt uncomfortable in her heart, so she tested it with the ECG function of Apple Watch and found that it was atrial fibrillation. So the family immediately sent her grandma to the hospital, and immediately underwent surgery.
Apple Watch users specially write an email to Apple CEO Tim Cook, thanking getting timely treatment because of this feature of the Apple watch ECG.
And on November 23rd, Apple CEO Tim Cook replied to the email that was written to Tim Cook in Chinese.
The email said: I am so glad you were there for your Grandmother and sought medical attention. Thanks for sharing your story with us — it inspires us to keep pushing forward. Be well. Best, Tim.