25 percent off a Garmin fitness tracker and other great deals happening today

This Garmin Fenix 5 Performer fitness tracker bundle—which was featured in our best gifts for nerdy runners gift guide—is 25 percent off today. The 47mm GPS watch comes with a chest strap, so it can more accurately tell you info about your heart rate and calorie burn. It's also water-resistant and comes with an interchangeable rubber strap, so you don't have to worry when you swim (or sweat buckets). The watch tracks activities like golf or paddle boarding and biometrics like heart rate, sleep quality, steps, calories, and pool laps. If you've been inactive for too long, the watch will vibrate and alert you to move. $427. REI