The principle of modularity has not changed, nor has the appearance, at first glance. The device consists of 3 main mods: a core with a display, a battery and a lens that can be easily changed. The overall dimensions of the ONE RS remain largely unchanged, but some accessories from the first generation camera may not be usable. The appearance has also been slightly updated to improve practicality and comfort for use in action scenes. Main differences from the original version.