The Xiaomi Robot Vacuum X20 Max weighs 3900 g and measures 350 × 97 mm, with a total unit volume of 11882.5 cm³ and a considerably larger docking station footprint of 80396.4 cm³. It operates at an audible noise level of 65 dB and is fitted with both a HEPA filter and an allergy filter to capture fine particles during use. The station is designed to go up to 75 days between emptying cycles, reducing routine maintenance significantly. For smart home integration, the robot is compatible with both Google Assistant and Amazon Alexa. The product comes with a 2-year warranty.
The X20 Max comes equipped with a broad set of navigation and cleaning features, including floor mapping, route mapping, no-go zones, and virtual barriers, giving users precise control over where and how the robot operates. An obstacle sensor and anti-fall sensor help it navigate safely, while anti-stuck technology reduces the chance of it getting stranded mid-clean. Scheduled cleaning is supported alongside remote control via smartphone over Wi-Fi 4 (802.11n), though the unit does not include voice prompts. Carpet detection and automatic docking are both built in, and the robot is self-emptying, returning to its station independently after each session. On the mopping side, it offers mop cleaning with water level adjustment, mop raising to avoid wetting hard surfaces unintentionally, and mop drying at the dock.
The X20 Max has a 0.5-litre dustbin that uses bags rather than a bagless collection system, and it includes a full indicator to signal when the bin needs attention. Washable filters are included in the box, helping to reduce ongoing maintenance costs. The robot automatically adjusts its height to accommodate different floor surfaces, though it does not feature twin side brushes or an onboard display. There is no physical display on the unit itself.
The X20 Max delivers 8000 Pa of suction power and is capable of cleaning all floor types, handling both hard floors and carpeted surfaces within the same session. It offers four cleaning modes and also mops, making it suitable for households that require both vacuuming and wet cleaning in one pass. The unit does not include a dirt sensor or an electrostatic filtration system.
The X20 Max is powered by a 5200 mAh battery that provides up to 120 minutes of runtime per charge, with a full recharge taking approximately 6.5 hours. During operation, it draws 55W of power. The battery is not removable, so charging is done through the docking station rather than by swapping cells.