Magellan GPS just announced a pair of fitness watches, dubbed the Switch and the Switch Up. Both offer the expected GPS-tracking functions, along with nine customizable sport profiles, a high-resolution 1.26-inch screen, and eight hours of battery life. They 're also water-resistant to 50 meters and compatible with ANT+ sensors (for monitoring heart rate, for example). The Switch Up adds some extra features, including vibration alerts, a barometric altimeter that tracks elevation data, and a thermometer for recording temperature. For true endurance enthusiasts, the company also offers an extended battery for up to 24 hours of fitness-mode recording. Magellan's touting the pair's flexibility, pitching the watches at multi-sport customers, but it'll be directly competing with Garmin's Forerunner, along with free smartphone options such as RunKeeper and CardioTrainer. The Switch Series should be available this spring: the Switch will have a MSRP of $249.99 (or $299.99 with a wireless heart monitor); the Switch Up comes with a mounting kit and runs $299.99 (or $349.99 with a wireless heart monitor).