Fitbit Surge Fitness Watch (Small): Built with GPS tracking and continuous, wrist-based heart rate monitoring, Surge displays real-time workout stats like distance, pace, elevation climbed, and heart rate intensity, so you can make the most of your training.
I was so excited to get this watch because of all the features but it is to huge to wear throughout the day to correctly track all my activities. I love to run/workout so I wanted something to track everything to include my sleep. Wearing it while sleeping was a pain and uncomfortable. After a week I decided to return it because it was just too bulky. I loved that it had the gps and heart rate monitor which seemed to work perfectly though. The app/website was great as well. I would totally buy this watch if it was smaller/slimmer but as is I wouldn't recommend because of the size. I give this a 3 star only because of all the useful features.