Suunto X3HR combines the benefits of a heart rate monitor and an altimeter in a unique way; making it a perfect training partner for the active outdoor enthusiast. Measuring body performance and environmental data during an exercise gives you the advantage of getting the best out of your training. To maximize the effect of training, Suunto X3HR also introduces two new ways of controlling the exertion level in relation to the target heart rate zone. The altimeter functions make Suunto X3HR particularly well suited for sports in variable terrain, such as running, mountain biking and hiking. In these types of activities, the cumulative ascent is an especially useful gauge of performance. Additionally, the weather functions assist in forecasting the conditions and planning the day’s activities.Features:General : Operating temperature –20 °C to +50 °C/-4 °F to +120 °F Storage temperature –20 °C to +60 °C/-4 °F to +140 °F Weight 50 g Water resistant to 30m / 100ft (ISO 2281 standard)

Suunto X6 Heart Rate Monitor Truly the next generation in sports watches packed with all of the technology that Suunto enthusiasts have been craving. Designed for "Cross Sports" applications with added benefits of a heart rate monitor.