Xiaomi’s latest robot cleaner is trying to win on the boring stuff that actually matters: suction, battery life, and navigation that does not get confused by furniture legs. The Xiaomi Mijia Robot Vacuum Mop 4 arrives with 10,000Pa suction, LDS laser mapping, and a 5,200mAh battery, putting it squarely in the crowded midrange where rivals tend to trade flashy app tricks for real cleaning performance.
It is also built for the kind of mess people actually have. Xiaomi says the robot uses a redesigned dual anti-tangle side brush to cut down on hair wrapping, and the machine combines a 520ml dustbin with a 270ml water tank for vacuuming and mopping in one pass. That’s a sensible spec sheet, not a vanity one, and it should make the Mijia Robot Vacuum Mop 4 more appealing to pet owners and anyone tired of emptying tiny bins every other room.
Xiaomi Mijia Robot Vacuum Mop 4 specs
- 10,000Pa suction
- 520ml dustbin
- 270ml water tank
- 5,200mAh battery
- Up to 180 minutes of operation in standard cleaning mode
- Covers up to 300 square meters in open spaces
- Clears obstacles up to 20mm
That 180-minute runtime is the quiet headline here. Many budget and mid-tier robots start strong on the spec sheet and then run out of steam once you ask them to do a full apartment plus hallway plus kitchen cleanup. Xiaomi is clearly aiming at homes with more floor space, and the 20mm obstacle clearance suggests it expects carpets and thresholds, not perfectly flat showrooms.
LDS navigation and app control
For mapping, Xiaomi is leaning on LDS laser navigation, which should give the robot cleaner room layouts and more efficient routes. In plain terms, it is the difference between a robot that sweeps with purpose and one that wanders around like it has forgotten why it entered the room. Users can control cleaning through the Mijia app, with scheduling, remote operation, custom modes, and multiple cleaning patterns available.
The Mijia Robot Vacuum Mop 4 is priced at 1,699 Yuan, or about $250. Xiaomi has not said whether it will be released globally, and that leaves it in the familiar gray zone for many of the company’s home products: strong value on paper, but not always easy to buy outside China. If it does travel, the combination of high suction and long runtime should make it a serious nuisance for more expensive robots that rely too much on branding and not enough on picking up dust.

