Aldebaran Robotics NAO
NAO is a humanoid robot made by Aldebaran Robotics (SoftBank) in Paris, France. Price: $8,000–$16,000 new. Key specs: 58 cm tall, 25 DOF, 1.5 h battery. It is the most deployed humanoid in research and education, commercially available worldwide. Used in autism therapy, HRI research, and STEM education. It runs NAOqi OS, supports Python and C++, and has HD cameras, microphones, and tactile sensors.