The UBTECH Walker C is a full-size electric-driven embodied intelligent humanoid service robot, standing 163 cm tall and weighing 43 kg with 20 degrees of freedom. It is powered by UBTECH’s self-developed Embodied Interactive Large Model supporting multilingual interactions. Equipped with the U-SLAM navigation system for autonomous tour route positioning, it provides bespoke robotic docent services with adaptive narration. AI-powered obstacle detection enables perceptive adaptation to dynamic business environments, maintaining a steady running pace of 6 km/h with all-terrain walking. Multi-DOF articulation enables human-like movement and dance. A 48 V 15 Ah lithium battery provides 1.5-hour charging, 2-hour walking, and 4-hour standing. Two RGBD cameras and two all-scenario binocular structured-light 3D cameras provide vision, with a high-precision IMU and WiFi plus Bluetooth connectivity. Wingspan is 500 mm with 5 kg arm weight. Open interfaces include joint control and communication. It served as the first embodied AI tour guide of the China Pavilion at Expo 2025 Osaka and appeared at the 2025 Strawberry Music Festival. Targets reception and entertainment in exhibitions, offices, retail, and transport hubs.