Patients often experience pain and side effects following a hip or knee operation. And that makes regaining mobility very soon after surgery especially important. The autonomous RoRo robot rollator walker is designed to help. It analyzes an individual’s gait, (i.e., pattern of walking) in hospitals and care homes to help doctors determine the patient’s degree of recovery, and to provide tailored physical-activity training. The movements that RoRo supports help strengthen muscles and counter the effects of improper posture. In addition, the electrically powered rollator lightens the workload on medical staff, by moving autonomously to the patient and assisting them to appointments, e.g., for an X-ray or physical therapy. To this end, the RoRo employs a camera-based indoor navigation system. The Central Innovation Programme for SMEs (ZIM, initiated by BMWi, the German Ministry for Economic Affairs) is providing funding for the project, which is active through May 2021.