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 question is how old is too old with regards to buying a Garmin watch. The Garmin Forerunner 255 is just $199 at Amazon right now, matching its lowest ever price, but it's three-years-old now and has been superseded by two newer models.

We're not sure if someone at Amazon hit the wrong button, but a bunch of Garmin watches just saw huge markdowns even though Prime Day doesn't kick off till next week. Right now, you can pick up the super smart Garmin Forerunner 255 for a mere $199.