The Xiaomi X20 Pro's 4,000Pa suction makes the Roborock S5 feel like last-gen hardware

Spec sheets don’t always tell the full story, but sometimes the gap is wide enough that the numbers are all you need. The Xiaomi X20 Pro delivers 4,000 Pascals of suction, while the Roborock S5 series runs between 2,000 and 2,500 Pa depending on the specific model. In real-world terms, the Xiaomi will pull up heavier crumbs, deeper-embedded pet hair, and debris that the Roborock has to go over multiple times to catch. I ran both on a medium-pile rug that gets heavy traffic, and the Xiaomi’s bin was noticeably fuller after one cycle. The Roborock S5 was a great vacuum in its day, but the suction arms race has moved on, and the X20 Pro is the current winner by a clear margin.