Exo-S3 lineup brings AI-powered, lightweight leg assistance to the market LAS VEGAS, Jan. 3, 2026 /PRNewswire/ -- Today at CES 2026, Sumbu announced its Exo-S3 line of dual-vector exoskeletons designed for the general public: the Exo-S3, Exo-S3 Pro and Exo-S3 Ultra.