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Xiaomi Smart Air Purifier 4 Compact
Evidence: Provisional
Compact HEPA H13 air purifier — 3-stage filtration removes 99.97% of pollutants down to 0.3 microns, ~48 sqm coverage, 20dB ultra-quiet sleep mode, OLED touch display, app and smart-home control.
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Where to Buy
Retailer prices with freshness shown per listingAmazon
In Stock
Price checked Jun 16, 2026
Check price on Amazon
Check price on Amazon →Brand DirectBest Price
In Stock
Price checked Jun 16, 2026
$99.99
View Deal →Specifications
Key hardware specs at a glance- Room Coverage
- 27 m²
- Filtration
- HEPA (electrostatic + mechanical)
- Noise Level
- 60 dB
Autonomy Intelligence Profile
Robot Autonomy Index methodology →The Xiaomi Smart Air Purifier 4 Compact scores 60/100 on the Robot Autonomy Index (RAI), RobotSniper's 0–100 measure of how little human help a robot needs across navigation, obstacle avoidance, automation, and self-maintenance. That puts it in the Assisted tier — gets the job done with frequent supervision. Limited sensing or a basic dock means you stay in the loop.
Evidence: Provisional
The source record does not yet include a complete evidence package. How evidence labels work
Assisted
This model carries a composite RAI of 60. The four-pillar sub-score breakdown — navigation, obstacle avoidance, automation, and maintenance independence — applies to our mobile home-cleaning robots (vacuums, mowers, pool and window bots); for other categories the composite is the headline score.
See how the Robot Autonomy Index works →Independent Video Analysis
External commentary; not RobotSniper hands-on testingClosest alternatives
Same-category models with the nearest published RAI scores; evidence labels remain visible.
Xiaomi Smart Air Purifier 4 Compact — Frequently Asked Questions
What does the Xiaomi Smart Air Purifier 4 Compact's Robot Autonomy Index (RAI) score of 60 mean?+
The Robot Autonomy Index (RAI) is RobotSniper's 0–100 rating of how little human intervention a robot truly needs, averaged across four pillars: navigation, obstacle avoidance, automation, and maintenance independence. At 60/100, the Xiaomi Smart Air Purifier 4 Compact is entry-level on autonomy, best for owners who don't mind some hands-on tinkering.
What is the Xiaomi Smart Air Purifier 4 Compact best at?+
The Xiaomi Smart Air Purifier 4 Compact is Xiaomi's air purifier with an RAI autonomy score of 60/100. Standout specs include room coverage of 27 m², filtration of HEPA (electrostatic + mechanical), noise level of 60 dB.
What are the key specs of the Xiaomi Smart Air Purifier 4 Compact?+
Headline specs for the Xiaomi Smart Air Purifier 4 Compact: Room Coverage (27 m²), Filtration (HEPA (electrostatic + mechanical)), Noise Level (60 dB).
How much does the Xiaomi Smart Air Purifier 4 Compact cost, and is it available now?+
It sells for around $99.99, and it's currently in stock. Prices on this page are compared from eligible retailer feeds and our own manual updates, so check the listing for the latest figure.
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