Magellan has long been a main player in GPS devices made for the outdoors. This year, the company is jumping into the world of fitness.
Two wristwatch products in the company’s line target runners and bikers. They have built-in GPS and small screens to view data on items from your heart rate to distance traveled on a run through the woods.
For the past couple months, we have been testing the company’s Switch model. It sits on the wrist unobtrusively but not small — its rectangle face measures about 1.7 X 2.3 inches, requiring the entire width of my arm.

It’s 0.67-inch thick, too. But inside the box are circuit boards and sensors that can measure and assess a person’s efforts and motions as they exercise outside.
Like other GPS-based watches, it can be frustrating to stand around before a workout and wait for a signal. I often set the Switch outside for a few minutes before a run to let it find a hookup from above.
Once it’s synced to satellites, the watch records speed in real-time as well as your distance traveled. In my tests, the watch was at most times highly accurate and easy to use in the GPS mode.
Though this is a GPS watch, navigation is not its strength. There are no built-in maps, just arrows and line graphics to point toward plotted points. You can save a location and make “breadcrumb” trails, but don’t expect to chart a path through the wilds.
Fitness, not outdoor adventure, is this product’s purview. There are a litany of modes and workout measurement tools. At its simplest, you can record time and distance information to compare your exercise sessions over a period and assess fitness gains.

Workout geeks have all sorts of options for measuring speed, calories burned, lap times, heart rate, and other session data. The watch can be set to work with heart-rate monitor straps, foot pods, and cadence sensors on a bike.
