Apple Watch
Apple Watches were introduced with a heavy mix of enthusiasm and speculation. Some folks thought that it was a bit much to have something like this on your wrist, but others saw the benefits for health and physical reasons. Now, it's pretty much the norm to see an Apple Watch on someone's wrist! Especially if they're more fitness-focused. Plus, you can access your social media and messages on the watch which is pretty convenient!
FitBit
Although it's similar to the Apple Watch, the Fitbit is way more fitness and health based and offers a deeper insight into your body. Plus, it's a bit more cost effective since you don't have to pay for all of the extra features.