Degrees of freedom (values differ) 27 vendor 23 sources · differ Unitree H1 — Degrees of freedom, show sources 20–26 vendor 19 sources · differ Unitree R1 — Degrees of freedom, show sources DoF per leg (values differ) 5 vendor 9 sources · differ Unitree H1 — DoF per leg, show sources 6 vendor 3 sources Unitree R1 — DoF per leg, show sources DoF per arm 4 vendor 11 sources · differ Unitree H1 — DoF per arm, show sources 4 vendor 3 sources · differ Unitree R1 — DoF per arm, show sources DoF waist (values differ) 1 third-party Unitree H1 — DoF waist, show sources 2 vendor 2 sources Unitree R1 — DoF waist, show sources DoF head (values differ) not published 2 vendor 3 sources Unitree R1 — DoF head, show sources DoF wrist (values differ) 3 third-party Unitree H1 — DoF wrist, show sources not published Actuator types PMSM vendor 9 sources · differ Unitree H1 — Actuator types, show sources PMSM vendor 4 sources Unitree R1 — Actuator types, show sources Reducer types (values differ) not published Planetary third-party Unitree R1 — Reducer types, show sources Torque density (values differ) 189 N·m/kg vendor 8 sources Unitree H1 — Torque density, show sources not published Max joint torque (values differ) 360 N·m 266 lbf·ft vendor 9 sources Unitree H1 — Max joint torque, show sources 120 N·m 88.51 lbf·ft third-party Unitree R1 — Max joint torque, show sources Joint torque (per joint) (values differ) ~360 N·m ~266 lbf·ft vendor 34 sources · differ Unitree H1 — Joint torque (per joint), show sources 120 N·m 88.51 lbf·ft third-party Unitree R1 — Joint torque (per joint), show sources Joint range (per joint) (values differ) not published -10–139° vendor 5 sources · differ Unitree R1 — Joint range (per joint), show sources Encoder type (values differ) Dual third-party 2 sources Unitree H1 — Encoder type, show sources not published Cooling (values differ) not published Air vendor 2 sources Unitree R1 — Cooling, show sources Hollow-shaft cabling Yes third-party Unitree H1 — Hollow-shaft cabling, show sources Yes vendor 2 sources Unitree R1 — Hollow-shaft cabling, show sources