On sale is the new version of the T20 Omni that packs quite the punch compared to others. This includes 7100pa strong suction, 5200mAh battery offering up to 260 minutes of run time, dual spinning/lifting mops that can mop and vacuum at the same time and a 3L auto empty dock for emptying the dock, charging the dock, as well as refilling, washing and drying the mops.
For navigation there's LiDAR/SLAM, as well as sensors for obstacle detection/avoidance and all the other essentials including app control, multiple cleaning modes and more.
T20 has [very] good grade at vacuum wars
And the T20e seems to be cut down version of it. From what I saw there's no heat in washing the pads.