BPI-R2 can run Android 5.1 smoothly, it also can run OpenWrt, Debian, Linux, Ubuntu Linux, Raspbian and
other Linux distributions.

The BBPI-R2 is a small and compact device, it is only 1.5 inches wide and 0.7 inches tall. It weighs only 0.5 ounces. The BBPI-R2 is powered by a single AAA battery.

The BBPI