I've been using a Garmin Forerunner 305 with GPS to track virtually all my runs for the past decade. I've had three units. I'm a fan. I really like the customizable three-screens data array. The third unit is now on the blink.
I'd like suggestions from somebody who knows and has used the 305 and has moved on to a newer Garmin model. What are my options? What do you use?