Atop the sensor is an f/2.8 aperture 155-degree wide-angle lens (7 lens setup) that can withstand a 7G force and capture wide-angle shots up to 155 degrees. The image sensor is a 1/2.3-inch Sony IMX377 module that can produce 12 megapixels. The chipset is equipped with a high-performance digital signal processing (DSP) subsystem with a 32-Mpixel image sensor pipeline (ISP), and an advanced H.264 encoder capable of 4K resolution. In the case of Yi, everything is on the rear display itself.īelow the hood, the Yi 4K Action Camera is powered by an Ambarella A9SE chipset that runs on an 800 MHz dual-core Cortex-A9 ARM CPU. In comparison to the GoPro, there is an additional simple monochrome LCD display up front to know the status of the camera and more details shown there. The front has a protruding camera lens and an LED that shows the status of the camera. The bottom also sports a screw mount for a tripod. The left has a small rubber flap that houses a micro USB port for charging and data transfer, while the bottom is home to a 1400mAh battery and the micro SD card slot that can hold up to 64GB SDXC cards. Alongside the button are two microphones for stereo audio and a tiny speaker grille. The Yi has just a single button that doubles up as a power and shutter release and is located on the top with a small LED. Sporting a larger display, the Yi has a 2.19-inch 640x360 resolution panel with a touch interface to handle all the settings and tasks. While the GoPro has a rubber body, the Yi has a complete plastic build. The Yi 4K Action Camera is the same size as a GoPro, but slightly slimmer.
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