The joule gps does everything the original joule gps did and then some the latest powertap cycling computer acquires gps in the blink of an eye seamlessly connects directly to the powertap mobile app for automated ride downloads and comes with an eye catching powertap orange back case using the powertap mobile app the gps gives you freedom to choose between ant or bluetooth smart without having to think about it later in 2015 the joule gps will be ready to pair directly to bluetooth s