Choosing a Variant: AIR, R1 or EDU?
- R1 AIR: 20 DoF, 4 joints per arm, monocular camera; no waist or head joints. The budget gateway for demos, education and basic locomotion/interaction.
- R1 (Standard): 26 DoF, 6 per leg, 5 per arm, 2 waist, 2 head; binocular camera. The balanced core of the series for ready-made applications and demos.
- R1 EDU: The ONLY variant open to secondary development. Optional Jetson Orin (40-100 TOPS), optional dexterous hands, expansion up to 40 DoF; also the longest manufacturer warranty (12 months; R1 8, AIR 6).
- The rule is simple: if you will write code, EDU is mandatory; AIR and standard R1 do not support secondary development.
Joint and Hardware Architecture
The R1's joints use low-inertia high-speed internal-rotor PMSM motors with crossed roller bearings; dual joint encoders provide precise position feedback. Cabling is routed internally (hollow joints) with local air cooling. Ranges of motion are wide: knee -10° to +139°, hip yaw ±157°, waist yaw ±150° (R1/EDU). Arm-joint carrying capacity is about 2 kg: the R1 is a dynamic motion and interaction platform, not a manipulation workhorse.
R1 or G1?
The R1 is the accessible start in humanoid robotics; the G1 is the mature research standard. The G1 side offers higher joint torque, LiDAR/depth perception options, ~2 h battery and the huge open-source ecosystem fed by hundreds of labs worldwide. The R1 side offers a clear price advantage, a lighter body and the multimodal voice+vision model. For robotics clubs, demos and algorithm learning we recommend R1/R1 EDU; for publication-grade research, teleoperation and data pipelines, the G1 EDU.
Engineering Evaluation
The R1 is a coherent engineering package aimed at breaking the entry barrier of humanoid robotics on the price and portability axes. PMSM joints and wide ranges of motion deliver above-class dynamic movement; however, the ~1 h battery and ≈2 kg per-arm limit position the platform for lab, education and demo scenarios rather than long field missions. Secondary development being EDU-only is the most critical pre-purchase decision point.