Here's the comparison of the two ROBOTIS AI Worker variants for the attributes you asked about:
AI Worker FFW-BG2 vs FFW-SG2 docs.robot... +1docs.robotis.com ↗“ROBOTIS AI Worker FFW-BG2”robotis.com ↗“ROBOTIS AI Worker FFW-SG2”
| Attribute | FFW-BG2 | FFW-SG2 |
|---|---|---|
| Base type | Fixed / Stationary (AC-powered, no mobile base) | Swerve Drive mobile base |
| Degrees of freedom | 19 | 25 |
| Weight | 85,000 g (85 kg) | 90,000 g (90 kg) |
Details:
- The FFW-BG2 is the stationary, AC-powered variant — locomotion is listed as "Fixed / Stationary", and it is powered via SMPS at 24 VDC, 80 A (1,920 W). docs.robot... +1docs.robotis.com ↗“Fixed / Stationary”docs.robotis.com ↗“24VDC, 80A, 1,920W”
- The FFW-SG2 is a semi-humanoid mobile manipulator on a swerve-drive mobile base, with a maximum speed of 1.5 m/s and a 2,040 Wh battery. robotis.com +2robotis.com ↗“Swerve Drive”robotis.com ↗“max_speed_m_s=1.5”robotis.com ↗“battery_capacity_wh=2040”
Both share dual 7-DOF arms built around DYNAMIXEL actuators, a 641 mm reach, 6 kg payload, and an NVIDIA Jetson AGX Orin 32GB onboard computer. The SG2's higher DOF count (25 vs 19) reflects its swerve-drive mobile base adding locomotion DOFs the stationary BG2 lacks. docs.robot... +2docs.robotis.com ↗“dual 7-DOF arms”robotis.com ↗“dual 7-DOF arms”robotis.com ↗“NVIDIA Jetson AGX Orin 32GB”