Mallard vs duck_vr are two different types of virtual reality headsets. The Mallard is a high-end headset that offers a wide field of view and high-resolution graphics. The Duck VR is a more affordable headset that is designed for mobile use. Both headsets have their own advantages and disadvantages, so it is important to compare them before making a purchase.
The Mallard is the more expensive of the two headsets, but it also offers the best performance. It has a wider field of view than the Duck VR, which means that you will be able to see more of the virtual world around you. The Mallard also has higher-resolution graphics, which means that the images will be sharper and more detailed. However, the Mallard is also larger and heavier than the Duck VR, so it may not be as comfortable to wear for long periods of time.