I see how it track your steps, distance, and flights of stairs climbed, which are all pretty cool. I created the lock screen emergency medical ID since I have a heart condition, which is neat feature. I know it will integrate with the Apple watch when that's released, but I really don't plan to buy that right away. So... what else is it good for? Do I need some type of ANT+ device like a heart monitor or cadence sensor for my bike to make it useful? Or some other wearable like a FitBit? What are the other options in that department? I see there's a ton of different things it can track. I assume it's primarily designed for the Apple Watch, but I'd like to get more use out of it now, without spending a lot of money. If this belongs more in the App section, please move it mods. I figured I'd put it here since it's really built into the phone.