Sleep Tracking Heart Rate Monitors

How to Choose and Use Heart Rate Monitors

Learn how to choose and use a heart rate monitor to track HR target zones for training, weight-loss and overall cardiovascular fitness.

How to Train for a Marathon

Thinking about running a marathon? This article will help you get started with tips on training, hydrating, fueling and more.

How to Train Using Heart Rate Zones

Learn how to train using a heart rate monitor, what your HR max is and how to determine it, and how to calculate and use heart rate training zones.

Tips for Your First Ultramarathon Trail Race

Learn how to select and prepare for your first trail ultramarathon, with tips on nutrition, hydration, mental and physical prep and more.

How to Measure and Improve Your VO2 Max

Learn what VO2 max is, how you can measure it and why it’s key to improving fitness. Also get tips on training routines that can help you improve it.