Apple Watch credited with saving man's life during walk.

An 83-year-old man collapsed during his walk and his Apple Watch detected the fall and called 911. Paramedics found him quickly and took him to the hospital where doctors discovered a large blood clot that could have been deadly if not discovered so soon. The man had no typical blood clot symptoms, but his health tracking app on his phone showed abnormal heart rate. Doctors performed a procedure to remove the blood clot, and the man is now grateful for his Apple Watch and can start walking again.