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.

Our team has tested every watch on this list, so you can shop with confidence knowing you’re getting expert-approved picks. We’re constantly tracking prices and stock, updating this guide as soon as new deals drop.

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