# SO-ARM101 vs. NexArm Open-Source 6-Axis LeRobot Arm Buying Guide: Which One to Choose

- Source: 幻尔科技
- Published: 2026-11-03T10:03:19.000Z
- RoboHot: https://robohot.news/en/items/vb05b2qy9s8wkvzhqgf3zl3zf
- Original: https://www.hiwonder.com/blogs/news/product-selection-so-arm101

## Summary

Huan'er Technology compares two open-source 6-axis robotic arms that natively support the Hugging Face LeRobot ecosystem: the SO-ARM101 has a 200 g payload, a 400 mm reach, and a maximum servo torque of 30 kg·cm, making it suitable for beginners learning teleoperation and imitation learning; the NexArm has a 500 g payload, a 500 mm reach, and 65 kg·cm torque, features an aviation-grade metal body, and can be expanded with peripherals such as the K230 vision module and a Mecanum-wheel chassis.