Magellan has introduced Echo Fit, an iOS-compatible sports smart watch. It comes in two models — the base Echo Fit ($150) and Echo Fit with Heart Rate Monitor ($200), which includes a Bluetooth Smart heart rate monitor. The ruggedized, water-resistant watch is an upgraded version of its Echo smart watch, adding activity and sleep tracking. Echo Fit tracks steps, distance, calories, and hours slept, wirelessly uploading data to the Magellan Active…