BuyDig offers the Garmin Vivomove Classic Activity Tracker in Black or White for $79.99. Coupon code "C101017X30" cuts that to $49.99. With free shipping, that's the lowest price we could find by $20, although we saw it for $4 less two weeks ago. It tracks steps and movement, monitors sleep, and features a steel case, leather band, Bluetooth, Garmin Connect support, water resistance, and 1-year battery life. Deal ends October 31.