Don’t just start. Surge with run time, distance, pace and elevation stats on display. See split times real time. Scroll through workout summaries and review routes after you run them to stay on track while you train. Check heart rate at a glance to gauge your effort and adjust workouts on the spot.

Don’t just start. Surge with run time, distance, pace and elevation stats on display. See split times real time. Scroll through workout summaries and review routes after you run them to stay on track while you train. Check heart rate at a glance to gauge your effort and adjust workouts on the spot. Set a target heart rate zone to ensure you're pushing yourself hard enough, but not overtraining. See your time spent in each heart rate zone and review exercise summaries. Maximize training, maintain intensity and monitor calorie burn with automatic wrist-based heart rate monitoring. With continuous heart rate readings, Surge keeps you in the zone all day and during workouts. No straps. No clips. No guessing. See calories burned 24/7 and during fitness activities like indoor cycling, elliptical and more. To get the most of PurePulse during workouts, read these tips. Evaluate calorie burn over time or enter exercise mode to view calories burned during workouts. Use with Fitbit Calorie Coaching by setting weight goals and comparing calories in vs. calories out.