The summer is a fantastic time to get outside and be active, and if you're planning on getting serious about fitness this season, you might want to add a good fitness tracker to your repertoire to keep yourself in sync with your goals.

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255 is just $199 at Amazon right now, matching its lowest ever price, but it's three-years-old now and has been superseded by two newer models.