The camera's default video recording resolutions are 1080p (12.4Mbps) and 720p at 30 frames per second (MOV), and the native photo resolution is 3 megapixels. It's also set to loop-record out of the box, which is odd. That means instead of recording one continuous video, it will record videos 1 minute in length until the card fills up or the battery dies, whichever comes first.
Configuration software (Windows only) that lets you change the camera's settings is available from the Dimika support page. The software is about as basic as you can get, with just a list of options with drop-down menus for each. In the settings you can increase the bit rate (15.4Mbps at 1080p) as well as change the second video mode to record at 720p at 60fps.
You may have also noticed in the screenshot of the settings menu above that there's a Motion Detection setting in this camera, as well as a G-sensor. Turn on the former and the camera will start recording whenever it senses movement within 10 feet (3 meters) of the lens. With the latter on, you can turn the camera upside down and start recording, and your video will be right-side up when you play it back.
The built-in battery can record video for up to an hour and takes about 2 hours to fully charge. Again, considering its size, that's pretty good, but it means the fun ends when the battery dies. However, if you plug it into a USB wall adapter, the camera can record while charging.
As far as video quality goes, it's actually better than you might expect from a low-cost camera, and I'd say it's better than what you'd get from Monoprice's MHD camera (though that camera has other things going for it).
If you're thinking this'll beat a GoPro or any other high-end action cam, it won't. At small screen sizes such as on mobile devices, the video is really pretty good, especially if you bump up to the higher bit rate. Closely viewing video blown up on larger screens, you start to see the artifacts and details look soft and mushy. Plus, you basically have to be on top of the mic in front to be heard. But, hey, that's the same for several more-expensive cameras in this category.
The Dimika Action Cam is a simple point-and-shoot, mountable, full-HD video camera that shoots good video at a low cost. It's really just something to have fun with, whatever that fun may be. If you need a camera that's rugged or if you're regularly going to be shooting a lot of video away from power, you'll want to spend more and get something else.