I recently got a fancy Garmin heart rate monitor with a chest band and a built in GPS in the watch by my girlfriend. Being the jerk that I am I thanked her, but made her aware that for about the same amount we could get a smart watch with a much broader usage. I actually convinced her to return the watch and get the money back. I feel a little ashamed and I am not sure if I did the right thing. Can I trust a smart watch for workout? Trying to do som research about the accuracy of the Apple Watch´s heart rate function I ended up summing it up in a blog post. What do you think? Has Apple again nailed a technology that others struggle with?