I am loving my new Black Stainless Steel LTE Apple Watch Series 3. I bought the first Apple Watch, skipped the second series, and now updated to get the wireless LTE connection with Verizon. One of the new features of the Apple Watch Series 3 is to track your heart rate to alert you when your heart rate is abnormally elevated so you can take action to calm down, or to seek medical attention.
Imagine my dismay to learn I had over 41 elevated heart rate notifications over a two day period! I was never alerted to those multiple notifications, and I was concerned!