Microsoft Store offers the Microsoft Band Fitness Tracker / Smartwatch
in Small, model no. 4M5-00001, for $79
with free shipping
. That's tied with last week's mention as the lowest total price we've seen. (It's the best deal today by $26, outside of the mention below.) This water-resistant band features an optical heart rate sensor, built-in GPS, exercise tracking, sleep tracking, email/text message notifications, and is compatible with Windows Phone, iOS, and Android.
A close price: Best Buy
offers it for $79.99 with free shipping.