This is huge!

I will not dwell on the specifications, they are all available in the description. In short it's heavy with a resolution HD 1080p. Provide superior memory card to the class 10 to use the S XAVC codec and get superb image quality.
Let's talk about the use: The camera is so small and so light it looks like a toy and when wearing the monitor wrist was like being in a spy movie. Then everything is simple and clear, menus are intuitive and the wifi connection is immediate between the watch and the camera.
The result on the HD TV is impressive, not shake, movie print.
On the PC the software is very simple and multi track management with GPS and speed is immediate, the effects of slow or speed well thought out, a treat for quick mounting and bluffing if we do not try too many other effects which If you must use another editing software.
What is also important is that the manufacturer does not skimp on accessories: Waterproof Case provided, flat adhesive mount, curved adhesive mount, tripod adapter.
So if you want to share your exploits filming, go ahead and do not miss a card higher than Class 10 and more (not included).

Update: After more intensive use by adding accessories (sac support doc and car holder) I'm still enthusiastic. Very good stability and very good image quality. FYI it does not work under water too (when the watch screen and camera are under water there is signal loss and more film. For this to work well against surfing, jet skiing, windsurfing. just no film on fish !!