With the ability to track your workout, play music, and text message, the Timex Ironman One GPS plus will do everything your phone does and then some. A built in connection to ATT's mobile network allows you to text, upload your workout, and track your runs through the Instafix GPS. The intuitive touchscreen display makes navigating the phone convenient and easy, while a built in music player keeps 4GB of your favorite running tunes close at hand literally. The phone free live tracking feature enables your loved ones to track your run, or keep an eye on your progress during your big race. The Ironman One GPS plus includes a heart rate monitor with alerts for when you're interval training, as well as the ability to upload your workout to MapMyFitness, RunKeeper, Strava, and more.