SoftBank Robotics NAO
The SoftBank Robotics NAO is a humanoid robot made by SoftBank Robotics in Paris, France. Price: ~$8,000 new, used from $4,000. Key specs: 58 cm tall, 5.6 kg, 25 degrees of freedom, 1.5-hour battery life, 0.3 m/s walking speed. It runs NAOqi OS and features dual cameras, four microphones, sonar, and tactile sensors. Available new and used for education, research, and healthcare applications.