The UBTECH Walker X is a commercial humanoid service robot standing 130 cm tall and weighing 63 kg with 41 degrees of freedom across legs (6×2), arms (7×2), hands (6×2), and neck (3), powered by 41 high-performance servo joints with torque from 4.5 N·m to 200 N·m. It walks at up to 3 km/h with human-like gait, climbing 15 cm stairs and 20-degree slopes across gravel, tile, thick carpet, and lawn. It carries 10 kg total or walks with 3 kg on both hands using a single arm 1.5 kg extended load and 600 mm arm span. Six cutting-edge AI technologies include U-SLAM navigation with FPV AR navigation and 2.5D obstacle avoidance, hand-eye coordination via a four-eye system with dual RGBD sensors and 7-DOF arms with 6-DOF force-controlled hands, and multi-modal interaction with 28-plus emotion displays through a 160-degree 4.6K HD dual flexible curved screen face. It controls common AIoT devices for smart home applications and uses deep learning-based facial recognition. Dual Intel i7 8665U processors run ROSA on Ubuntu plus Linux RT Preempt plus Android. A 54.6 V 10 Ah lithium battery provides 2-hour runtime. Connectivity includes dual-band WiFi, Gigabit Ethernet, EtherCAT, and USB 3.0. Targets research and industrial applications.