Close call. D1 and M0609 trade wins across the matrix.
Readiness, uptime, navigation & connectivity
Price accessibility and ROI clarity
Payload, speed, runtime & labor replacement
Environment fit, footprint & long-term upside
Multi-floor security patrols in facilities with stairs, slopes, and cluttered outdoor perimeters (warehouses, construction sites, utility substations)
Screw-tightening and gear assembly on automotive harnesses in <5 m² cells
If immediate deployment is the priority, choose M0609. If the goal is to be ready when D1's capabilities mature, track it.