Here is a comparative table between One from Fathom and One 4K from Upair. One 4K reaches a maximum speed higher than that of One. One has a maximum autonomy time higher than that of One 4K. One 4K is cheaper than One. One 4K is certainly lighter than One. Let's go into detail with the technical data between One and One 4K. Published data is always indicative and may contain errors or be subject to change. Always check official sources.