Dreame X50 Ultra vs Roborock 798: Extendable brush gives the Dreame the edge in corner cleaning

Regarding the Roborock: Both use LiDAR for rock-solid navigation, so neither gets lost. The real difference is the X50 Ultra’s extendable side brush that reaches into corners and along skirting boards automatically — the 798 navigates just as accurately, but that edge-reaching trick means the Dreame cleans more of the room on every pass without the bump-and-adjust dance.