UBTECH walker C leads on 3 of 7 dimensions — strongest on ROI clarity.
Readiness, uptime, navigation & connectivity
Price accessibility and ROI clarity
Payload, speed, runtime & labor replacement
Environment fit, footprint & long-term upside
International expo pavilions (live deployment at Expo 2025 Osaka as China Pavilion tour guide)
Raspberry Pi + OpenCV integration: face detection, color tracking, motion recognition demos for computer vision coursework
Both are credible picks. Decide on cost and supplier proximity, not capability — the gap is small.