DrivenGPS via eBay offers the refurbished Garmin Vivoactive GPS HR Smartwatch with Heart Rate Monitor in Black for $134.99 with free shipping. That's the lowest price we could find for a refurb by $16, although we did see this for $5 less in March. It features a heart rate monitor, sports apps and display alerts for incoming calls, texts, emails, and social media. texts, emails, and social media.
Note: A 1-year Garmin warranty applies.