70mai 4K A900 Ultra dash cam review: potent performance from twin cameras
70mai 4K A900 Ultra: two-minute review While many of the best dash cams on the market come with plenty of features and functions, not all of them boast 4K shooting capability. The dual-channel 70mai 4K A900 Ultra captures 4K footage not only with its front-facing camera, but also with the rearward-facing unit that makes up this potent dash cam bundle. This camera combo benefits from Sony Starvis 2 IMX678 sensors in both units too, which combined with the 4K, HDR and 70mai’s own Night Owl Vision 2.0 processing, means the bundle is perfect for capturing footage night and day. The resolution is impressive, with the f/1.8 front lens capable of shooting 3840 x 2160P (4K) at 30fps, and the f/1.6 rearward camera able to shoot the same 4K quality at 25fps. The field of view for both units is a generous 130 degrees. The rest of the specification is similarly impressive, with the chunky main camera featu...