Powerful 4K in a tiny body means a whole lot of creativity! Mount it anywhere, take it everywhere.Powered by an enhanced chip with 50% more CPU computing power and a new wide-angle lens, GO 3S now shoots in stunning 4K. It offers nearly double the amount of pixels compared to 2.7K to capture every moment of life in sharp, clear detail.

the sensor has changed. Previous Go cameras used an oversize sensor that allowed you to shoot either vertical or horizontal footage (using Freeframe mode) regardless of how the camera was oriented. This changes in the 3S. From my testing and experimenting it seems that the new sensor is horizontal, and software is making up the difference. This results in slightly less clear vertical video than what you can get with the Go 3.