The Unitree R1 EDU U4 is a fully programmable, lightweight humanoid robot designed primarily for research and educational purposes. It's part of Unitree's line of bipedal robots and is a step up from their more basic models. All features of the R1 Edu Smart version (R1 Edu U2) . Equipped with two Dex3-1 force-controlled three-finger dexterous hands (with tactile sensing). Dexterous hands have 7 degrees of freedom per hand (thumb 3, index finger 2, middle finger 2). Total degrees of freedom (joint motors) for the entire device: 40 (26 + 7 + 7). Leg DOF: 6; waist DOF: 2; arm DOF: 5. Head DOF upgraded to 2. Built-in computing power upgraded to 100Tops expansion dock, enabling development and including AI algorithm support. Maximum arm load: 2kg. Supports high- and low-level development, provides robot models and simulation interfaces, and supports simulation environments such as Isaac SIM. Excellent technical support, comprehensive development