Beach Camera via eBay offers the refurbished Garmin Vivosmart HR+ Activity Tracker in several colors (Black pictured) for $89.99 with free shipping. That's $5 under our Black Friday mention of a new one and $60 below the best price we could find for a new unit today. This water-resistant tracker monitors heart rate, calories burned, distance traveled, steps taken, stairs climbed, activity intensity, and sleep quality. It features a 160x68 touchscreen LCD, inactivity alert, smart notifications for calls, texts, and e-mails, and 5-day rechargeable lithium battery. It's available in regular size.

Note: A 1-year Garmin warranty applies.