Comparison · 2 models
Comparing 2 robot vacuums
Your shortlist side by side: today’s price, our score and every fact the maker states.
Prices updated at 08:46
Side by side
Green is the best of these 2, also when they share the lead.
Drag a model by its header to move its column, or use the arrows.
| | | |
|---|---|---|
| Price and ranking | ||
| Lowest price | – | – |
| Score | not in our ranking | not in our ranking |
| Rank | – | – |
| Customer rating | – | – |
| Room size | ||
| Room size same on both | open-plan spacesup to 129 m² | open-plan spacesup to 51 m² |
| Size, noise and age | ||
| On the market since | February 2020 | June 2023 |
| Smart features and warranty | ||
| App control | – | Wi-Fi |
| Which voice assistants the robot works with, such as Google Assistant or Alexa. Voice assistants | – | Alexa, Google Assistant |
| Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. Matter | – | no (assumed) |
| Cleaning performance | ||
| How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster. In this comparison | 620 m³/h | 601 m³/h |
| The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not. CADR measured to | Not stated | AHAM AC-1 (US standard) |
| The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule. In this comparison | 52 m² | 50 m² |
| The room size the maker states. Makers use different rules, so we show it but never rank on it. In this comparison | 129 m² | 51 m² |
| The CADR measured with tobacco smoke, the finest of the three test particles. It is the figure to read for wildfire smoke. CADR for smoke | – | 601 m³/h |
| The CADR measured with dust. CADR for dust | – | 634 m³/h |
| The CADR measured with pollen. CADR for pollen | – | 732 m³/h |
| The CADR measured for particles under 2.5 microns. CADR for fine particles (PM2.5) | – | 617 m³/h |
| How many times an hour the maker assumes the air is changed when it states a room size. Air changes the maker assumes | – | 4.8 per hour |
| Filter | ||
| Replacement filter part number | AFDBRZ6 | – |
| A filter of activated carbon that takes out smells and some gases. It does not catch particles. Activated carbon filter | – | yes |
| Noise and power | ||
| The sound level at the lowest speed, as the maker measures it. In this comparison | 17 dB | 24 dB |
| The sound level at the highest speed, as the maker measures it. Noise at the highest speed | – | 56 dB |
| The power the purifier draws at its highest speed. Power at the highest speed | – | 70 W |
| Air quality sensing | ||
| What the purifier measures in the air. A particle sensor lets it speed up and slow down by itself. Air quality sensors | – | PM1, PM2.5, PM10 |
| Particle sensor | – | Laser |
| The fan speed follows the air quality the sensor reads. Automatic mode | – | yes |
| Extras | ||
| Certified by the California Air Resources Board as making little ozone. CARB certified | – | yes |
| Warranty and certification | ||
| Maker model numbers | AX91-604DG; 95001139100 | – |
| The CADR is verified by AHAM, the US trade body that runs the test. AHAM Verifide certified | – | yes |
| The warranty the maker gives in Germany. Consumer law here stands apart from it and can last longer. Warranty | – | 2 years |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
The score is out of 10: 60% measured facts and 40% shop ratings. A model is ranked only when its CADR is known. Method.
No model fits all these filters.
Lowest price at every shop that delivers to Germany, VAT and delivery included. * = delivery cost and VAT estimated for a foreign shop.
Robot vacuum market report, September 2026 A median price of – and 0 new models.
Frequently asked questions
How big an air purifier do I need?
Match it to the size of the room. Each model in the ranking is grouped by the room size its maker states, and the lists keep a model out when it states none. A common rule of thumb is a clean air delivery rate (CADR) in m³/h of at least 12 times the room’s floor area in m², for a ceiling of 2.4 metres.
What is the difference between HEPA H13 and True HEPA?
Both are high-efficiency filters. True HEPA is the American name for a filter that catches 99.97% of particles of 0.3 micrometres, and H13 is the European class for 99.95%. We read the class the maker states and do not treat a filter called HEPA-type or HEPA-like as either.
Can an air purifier make ozone?
Some can, mostly models with an ioniser or a plasma feature. California limits ozone from indoor air cleaners to 50 parts per billion, and the CARB certification shows a model meets that limit. Our asthma filter leaves out models whose ioniser cannot be switched off.
Where we check prices
We read prices every day at most shops, from their product feed or web shop. We check them for errors and keep them, so you can see what a price did over the last 90 days. We link to Amazon too, but show no Amazon price until we read it through Amazon’s own API. Until then the price is on Amazon itself.
Whose tests we use
Beside each model we also show where these testers place it in their own lists, without counting it in the score:
How we combine measured facts and owners’ ratings into one score is on the method page.
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