The Samsung Galaxy Gear can run full Android apps

Obviously, there are limitations to what the Gear can do since it is has just a 1.6-inch screen, 800MHz processor, 512MB of RAM, 4GB of storage, and no native data connection. But, it looks like it is very easy to turn on USB debugging, which will then allow you to use ADB to sideload apps on the device. Ron Amadeo over at Ars Technica was able to get apps running, play a game of Candy Crush, listen to music with the device's built-in speakers, and even watch some video. 

None of these things are really ideal functions of the device, but this is really just about the potential of the Gear. The device hasn't yet been rooted, but that seems to be on the way, and after that there could be some pretty interesting things happening with the Gear. Also it should be mentioned that the tiny battery in the Gear probably won't last too long with some of these more advanced apps running.

*WARNING* The video below does include scenes from the last episode of Breaking Bad, and contains small SPOILERS. So if you don't want to see that, just stop the video at the 2-minute mark, and you'll be fine. 

source: Ars Technica