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dean karnazes

How Dean Karnazes Uses Heart Rate Data While Training

Ultramarathoner Dean Karnazes shares some of his favorite recipes

PurePulse Heart Rate is a new technology at Fitbit that we’re really proud of. Included in both the ChargeHR and Surge, it offers continuous, automatic, wrist-based heart rate and simplified heart rate zones. Tracking your heart rate allows you to accurately track your calorie burn, maintain workout intensity, maximize training, and optimize...

Free Run with Dean Karnazes at The North Face on Sept 8


Join Fitbit ultramarathoner Dean Karnazes as he leads a free training run from The North Face Store in Corte Madera, CA on Monday September 8 at 6pm just north of the Golden Gate Bridge. The North Face will host a demo and shoe clinic where you can test out North Face shoes for your run, like the Ultra Protection Series. You can try on some new...