For Prime Day Amazon is offering a whopping 43% discount on the Forerunner 255, bringing its price down to just $199 from its regular price of $349. This is the company’s best-selling product, and it has a 4.7 out of 5 rating and it can be purchased as a limited time offer that does not require a Prime membership.

The Garmin Forerunner 55, ideal for new runners and now available for $50 off its original price, offers essential GPS tracking and fitness features.

This year, Prime Day is a four-day event, with shoppers able to save money across all Amazon categories — and there's some seriously good fitness deals to get your hands on, from smartwatches to headphones and much more. Not that it ends there — you can expect discounts on homeware, tech, fashion, beauty and furniture, too.