UCLA builds PhoneBot humanoid from smartphone and $400 hardware
UCLA researchers created PhoneBot, a 19-inch humanoid robot powered by an old smartphone and $400 of additional components. The device can walk, twist its torso, and recover from falls. The team demonstrated its ability to perform basic mobility tasks, though no benchmarks or performance metrics were provided beyond visual proof-of-concept.
Key points
- UCLA built PhoneBot using a smartphone and $400 of extra hardware for a 19-inch humanoid
- PhoneBot walks, twists, and recovers from falls but lacks detailed performance metrics
- Project demonstrates low-cost humanoid potential but focuses on mobility over dexterity
The project highlights low-cost robotics innovation, using repurposed consumer tech. While PhoneBot lacks advanced AI or dexterity, it showcases how smartphone hardware could enable lightweight, affordable humanoid designs. The research aligns with broader trends in modular robotics, where off-the-shelf components reduce development costs but may limit scalability or precision.
UCLA builds a humanoid from smartphone
The Rundown AI · 12 October 2026
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