The Samsung Gear S2 SM-R720 Smartwatch offers enhanced functionality and precise timekeeping. You can view the time and call or message alerts with ease on its 1.2-inch AMOLED face. This smartwatch can track your activities, heart rate, calories burned and number of steps you've taken. It has a dark grey bezel and dark grey, rubber strap. Armed with a built-in rechargeable battery, it offers a battery life up to three days. What's more, this smartwatch is compatible with Android devices.