Fitbit Surge is the ultimate fitness super watch, that doesn't look like a fitness watch. Its wrist based heart rate monitor, tracks continuously and helps you to understand your heart rate zones with ease. Connect your smart phone via bluetooth and receive call and text notifications on the display and even control songs from your mobile's playlist. Monitoring your sleep too, it sync stats to your smartphone and displays your trends as detailed charts on the Fitbit dashboard. With up to 7 days of battery life in tracking mode and 10 hours with GPS, it lasts longer than competing trackers.