The Zenmuse X5R camera that sits atop the Osmo is a micro four thirds sensor that gets 12.8 stops of dynamic range and shoots uncompressed CinemaDNG onto DJI's 512GB solid state drives (or compressed video onto microSD card). It does 4k up to 30fps, or higher framerates in HD. Its various battery options gives you between 30 minutes-5.5 hours of continuous operation. Adam Najberg from DJI walked us through the unit on the Vegas floor.
More of No Film School's coverage from the NAB showroom floor: