23% pricier ≈ US$370
- Suction power 5,500 Pa vs 5,000 Pa
- Water tank (robot) 80 ml vs 320 ml
- Window area per session 90 m² vs 240 m²
10 window-cleaning robots at a similar price that compete with the Legee D8 — what each does better, what it gives up and how the price compares.