WheelVillage.com

Finally, a GPS-enabled training device that isn't afraid of the water. The rugged Forerunner 310XT is the triathlete's indispensable training tool — a GPS-enabled trainer that is water-resistant to 164 ft (50 m), tracks biking and running data and sends it wirelessly to your computer. This multi-sport device has up to 20 hours of battery life, tracks distance, pace and heart rate (optional), and goes from wrist to bike in seconds.

The Forerunner 310XT is waterproof to a depth of 164 ft (50 m), so you can wear it in the pool or the lake to time your swim. And its slim design and flexible wristband mean Forerunner is easy to wear in any conditions.

Forerunner 310XT tracks your position precisely with GPS satellite data and records distance, pace, heart rate (optional), power data (from ANT+™-enabled third-party power meters) and more. High-sensitivity GPS and HotFix® satellite prediction mean Forerunner acquires satellites quickly and tracks your movement even near tall buildings or under tree cover. And using innovative ANT+ wireless technology, Forerunner 310XT connects seamlessly to an optional heart rate monitor, foot pod and cadence sensor. When paired with the optional wireless heart rate monitor, Forerunner 310XT continuously tracks beats per minute and uses heart rate data in advanced calorie computation. Train in a certain heart rate zone to improve fitness and monitor your level of exertion.