Xiaomi S20+ Replacement Parts Under $5: Honest Review

When your robot vacuum parts wear out faster than expected

I bought a Xiaomi robot vacuum because I was done manually mopping every other day. What I did not factor in was the ongoing cost of replacement parts. The main brush starts looking rough after a few months, the mop pads stop picking up properly, and the HEPA filter gradually chokes the suction. Xiaomi's official replacement kits are priced like they know you have no choice. So I went looking for alternatives.

This kit on AliExpress caught my attention - brushes, HEPA filter, and mop pads compatible with the S20+, S10 Plus, and related models, all for around $4.50. I was skeptical. Here is my honest take.

Price: $4.50

Honest Review: What you actually get

The kit includes the side brush, the main brush, a HEPA filter, and cloth mop pads. No frills, no fancy packaging. But for replacement parts, none of that matters - what matters is fit and function.

What surprised me is how well the mop pads actually work. Multiple buyers across France, Spain, Mexico, and Brazil have noted the same thing: the pads are slightly thicker than the originals. In practice, that means better floor contact and more effective mopping. One buyer in Brazil specifically confirmed that the S20+ correctly detects the mop pads through its sensor - which is a real concern with third-party accessories, because cheap knockoffs sometimes trigger an error in the app.

The HEPA filter fits properly and is recognized by the robot. The brushes mount without issue, though worth noting that they sometimes arrive slightly bent from packaging. They tend to straighten out once installed, but it is worth knowing upfront.

The real limitation: these are budget consumables, not premium long-life components. If you are expecting the same durability as genuine Xiaomi parts, you will likely be disappointed. These are designed for frequent, cheap replacement - not for stretching out maintenance cycles. That is a fair tradeoff at this price, but it is not the right choice if you want to change parts only once a year.

What does $4.50 normally buy you in this category?

In the world of robot vacuum accessories, $4.50 buys you almost nothing from any recognizable brand. Official Xiaomi replacement kits typically run $20 to $35 depending on what is included. Generic kits from established third-party brands sit around $10 to $15. This kit lands well below that range.

The quality is not equivalent to the official kit - that would be an unfair comparison. But it holds up noticeably better than the truly cheap no-name options that flood AliExpress. The buyer reviews across multiple countries are consistent: it fits, it works, the robot recognizes it.

For what it is - a low-cost consumable meant to be swapped out regularly - the value is reasonable.

Buy it if... / Skip it if...

Buy it if you own a Xiaomi S20+, S10 Plus, or a compatible model and you are looking for a practical way to stay on top of maintenance without spending $25 every few months. If you replace parts frequently and want to keep costs down, this makes clear sense.

Skip it if your robot is not one of the compatible Xiaomi models - the fit is specific and getting the wrong size brush or mop pad is a frustrating waste of time. Also skip it if you are hoping to extend time between replacements - these are budget-tier parts and will wear out faster than OEM components.

My honest take: this is not a revelatory product. It is a maintenance kit for a specific robot vacuum, priced low enough that getting it right is almost a given. The reviews are consistent, the fit works, and the price makes the decision simple for anyone with a compatible Xiaomi robot.

You can find it here: https://www.ali-ex.com/1mXqxf