The V1 Pro monitor from Cardon aims to solve this problem. Measuring 8.8 x 6 x 1 cm (3.46 x 2.41 x 0.39 inches), it’s roughly the size of a credit card, which makes it a good balance between portability and functionality. The V1 Pro supports video resolutions of up to 4K at 120 fps on iPhones and up to 8K at 40 fps on Android phones. If your phone or phone case already has a magnetic ring, the V1 Pro is compatible with it. Additional accessories, such as a magnetic phone ring stand, tripod, and longer cables, can be purchased separately.