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.

If you're considering an upgrade to your fitness-tracking technology, this Garmin smartwatch deal is well worth grabbing fast

Get an advanced fitness trackers and running watches for their lowest prices of the year before Amazon's big shopping holiday.