What you can expect from the Xiaomi X20 Max
What testers say about the Xiaomi X20 Max
For anyone whose home is mostly carpet, the Xiaomi X20 Max plays to its strength.
Suction of 8,000 Pa looks thin beside the 20,000 Pa common among robots whose station handles both the bin and the mop, yet Vacuum Wars placed the vacuuming of the Xiaomi X20 Max well above its median, after it drew far more embedded sand out of carpet than the lab's average robot. It gets round quickly. For navigation the lab awarded 3.85, clear of its 3.145 midpoint on a five-point scale, which matters when the battery runs out after 120 minutes and rivals keep going for 200 minutes.
The trouble starts with water. Vacuum Wars measured 3.5 grams left on the floor after mopping, against 1.01 grams for its average robot, and it reported owners whose water pump failed within weeks or months. TechRadar, a year into its test, had a station that sometimes failed to drain and spilled dirty water. On timber floors that is the reason to hesitate.
The station is a tall one, 563 millimetres to its rivals' 500 millimetres, and TechRadar found it hard to place in a small home.
Pros
- Pulls embedded sand out of carpet among the best they have tested Vacuum Wars ↗
- Lidar routes let it finish a whole floor plan quickly Vacuum Wars ↗
- App offers per-room settings, areas it will not mop, and zone cleaning Vacuum Wars ↗
- Builds an accurate map and reliably returns to its dock TechRadar ↗
- Cleared a heavy spill of oats, crumbs and flour in one intensive run TechRadar ↗
- App stayed quick and free of bugs through a year of use TechRadar ↗
Cons
- Leaves far too much water on the floor when mopping Vacuum Wars ↗
- Even with its cutting combs, long hair still winds round the brush Vacuum Wars ↗
- Many owners report the water pump failing after weeks or months Vacuum Wars ↗
- After a year the dock sometimes failed to drain and spilled dirty water TechRadar ↗
- Base station is very large and hard to fit in small homes TechRadar ↗
- Robot loudly announces every step unless you switch the voice off TechRadar ↗
Each point sums up, in our words, the review of the test it names, and its link leads to that review. We do not summarise RTINGS or Wirecutter: their lists are linked above.






