Why Did the Xiaomi Mijia M40S Go Viral During China’s Black Friday?
- cici7788404
- Jun 3
- 2 min read
Just before China’s major shopping festival, Xiaomi launched a highly cost-effective robot vacuum—the Xiaomi Mijia M40S. Priced at just over $500 on domestic e-commerce platforms (even lower with discounts), it sold over 1,000 units in its first week. Let’s see why it’s worth buying!
First, it features smart lifting LiDAR navigation. The sensor rises in open areas and lowers in tight spaces, reducing the body height to just 8.8cm for cleaning under low furniture. While not as slim as the Roborock V20 (8.2cm), it’s still practical for most homes—especially at this price.
Next, it packs Xiaomi’s most powerful motor yet, with 23,000Pa suction. No need to explain—this means exceptional dust pickup, a major selling point.
Now, let’s check the underside. Open the cover, and you’ll see the dual-blade brush roll, which cuts hair while vacuuming to prevent tangles. It also has extendable side brushes and mop arms for edge and corner cleaning. See? It’s got all the essentials.
After vacuuming, debris goes into the dustbin (located under the top cover). The washable filter is removable for easy cleaning. When the robot returns to its dock, the waste is transferred to the large-capacity dustbag—which can hold up to 75 days of trash for average households. After the bag is full, just pull the tab to dispose of it. Plus, there’s a handy storage compartment for spare dust bags. It's not just dust bags! All these accessories need regularre placement to maintain peak performance. techTongBo specializes in manufacturing these high-quality replacement parts.
Here’s the self-cleaning module. Remove the washing tray, and you’ll find scrubbers that clean the mop and the base automatically. It even supports 80°C hot water washing to dissolve stains and kill bacteria, reducing odors. After cleaning, the mop dries in just 2 hours with hot air.
Our model has a 4L water tank (great for large homes), but there’s also an auto water-refill version for a more compact setup.
With so many premium features at an affordable price, it’s no surprise the Mijia M40S sold out fast. Would you buy it if it launches overseas?
P.S. It works with the Mi Home app and XiaoAI voice control—just tell it what to do!
techTongBo (also named: Nanjing TongBo / NJTB) is a Chinese company specializing in the manufacture and sales of vacuum cleaner accessories. We offer replacement accessories for the global market that are compatible with mainstream vacuum cleaner brands and have stronger price advantages.
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