The Mercury X1 from Elephant Robotics is a wheeled humanoid robot with 19 degrees of freedom, combining the Mercury B1 dual-arm system with a high-performance mobile base. It uses a Jetson Orin Nano SUPER 8GB main controller. The mobile base features high-performance LiDAR, ultrasonic sensors, and 2D vision, driven by direct drive motors at up to 1.2 m/s with a maximum climbing angle of 15 degrees and up to 8 hours of battery life. It supports ROS, Moveit, Gazebo, and Mujoco simulation, with an open-source software ecosystem.