Robert wants to get an EKG device to check his heart rate. He can get one for $89. Leo has one called AliveCor, and it lets him send the results directly to the doctor from his mobile phone. Leo says to go for it! The Apple Watch has really brought the price down on these personal health devices and now he can measure oxygen capacity and the EKG. It's not completely accurate, but it's enough for a doctor to see what's going on and if there's a problem. And it can save his life.