The Garmin Forerunner 245 SmartWatch allows you to concentrate on your workout whilst the Forerunner 245 does the thinking. This GPS running smartwatch evaluates your performance stats such as VO2 max, aerobic and anaerobic training effect and training status, and will indicate if you're undertraining or overdoing it. You can also track advanced running dynamics such as ground contact time balance and stride length. Garmin Forerunner 245 SmartWatch Features Take the guesswork out of training for your next 5K when you team this watch with the Garmin Coach app Select free training plans that adapt to your goals, or take training into your own hands by creating custom workouts at Garmin Connect, our free online fitness community Safety and Tracking features make it easy to share your location with chosen contacts Customize your watch with free watch faces, apps and more from our Connect IQ store GPS, GLONASS and Galileo satellite network capability helps you track how far, fast and hard you've run - on or off the city streets Connected features include built in WiFi connectivity, smart notifications, automatic uploads to the Garmin Connect online fitness community and the ability to track your runs with the LiveTrack feature There are additional features available with Forerunner 245 Music Sync your favourite music from select streaming services, and even store up to 500 songs right on your watch for phone free listening Battery life is up to 7 days in smartwatch mode and 10 hours in GPS mode or 6 hours in GPS mode with Music