How To Take A Screenshot or Screen Capture With the Samsung Galaxy Gear (Smart watch):
Even though the Samsung Galaxy Gear (Smart watch) runs on android OS it cannot take any screenshot of its own as far now.
You can take the screenshot using Android SDK though.
Future: There is a possibility that Samsung might provide an inbuilt screenshot solution.
Samsung Galaxy Gear comes with 1.63-inch OLED display.It has a 1.9-megapixel camera. It has 70 apps that include basic fitness. The basic key challenge for most wearable devices. It is powered by 1.9GHz octa-core processor.