The Garmin Forerunner 920xt GPS Heart Rate Monitor Watch is a watch that's qualified to guide the training of elite and amateur athletes alike. It is loaded with advanced features including running dynamics, VO2 max estimate, live tracking and smart notifications. It boasts a high-resolution color display; flexible, hinged bands and a watch mode, so you can wear it all day. The activity tracking feature measures your steps, sleep and calories burned all day, giving you a more complete picture of your daily activity. Its great in the water too! It captures detailed swim metrics, including distance, pace, stroke count, stroke rate and SWOLF score. The drill logging feature allows you to easily log swim drills and kick sets at the pool, and the 2 types of rest timers keep you pushing off the wall on time. Use time alerts to help you hold your pace, or distance alerts to let you know when a set is over. There are even alerts for calories and stroke rate. When used with a heart rate monitor (either a standard Garmin HRM or the HRM-Run), Forerunner 920XT offers additional features that can dial in your recovery status as well as your racing potential. First is a recovery check, which is a real-time indication of your recovery state within the first several minutes of an aerobic activity. After the activity, the 920XT provides a recovery time indicating how long before you should attempt another hard effort. The 920XT can also estimate your VO2 max for running when used with a heart rate monitor and for cycling when used with a heart rate monitor and power meter. Based on that data, it can predict your running race times for several distances. Pair the 920XT with your smartphone and the Garmin Connect Mobile app for additional capabilities that can help you stay connected during your cycling and running workouts or races. The live tracking feature lets you invite followers using email or social media so they can see your stats and location on a map in real time. Smart notifications let you see email, text and other alerts on your watch when paired with your compatible Android™ or Apple® device. When the 920XT is paired with your phone and the Garmin Connect Mobile app, your completed workouts can instantly upload.