Ecovacs' flagship is rated at 22,000 Pa. The model at half the price is rated at 30,000

Two product pages on Ecovacs' own site contradict the way robot vacuums are usually sold. The DEEBOT X12 OmniCyclone, the 2026 flagship at USD 1,499.99, is rated at 22,000 Pa. The DEEBOT T90 Pro Omni, at USD 799.99, is rated at 30,000 Pa. The cheaper machine wins the number that dominates the marketing of the entire category. The second number on those same pages explains why this is not an error. The X12 moves 22 litres of air per second; the T90 Pro Omni moves 16. So the flagship loses on pressure by roughly a quarter and wins on airflow by roughly a third. These measure different things. Pascals describe the vacuum a motor can pull against a sealed inlet — the force available to lift grit out of a carpet pile or a floorboard gap. Litres per second describe how much air actually travels through the machine, and it is moving air that carries larger debris up the duct and into the bin. A high pressure figure with modest airflow and a moderate pressure figure with strong airflow are two legitimate designs, not a better and a worse one. For a reader comparing the two, that turns a single spec-sheet number into a question about the floor. Carpet, deep pile and edge gaps reward pressure. Cereal, litter and pet food on hard floors reward airflow. Ecovacs is also positioning the X12 on things neither number covers: FocusJet, which sprays water on dried stains before the roller mop reaches them, and the PureCyclone dock, which empties into a bagless bin instead of a disposable bag. The practical takeaway is narrower than a verdict on either machine. Within one manufacturer's 2026 range, the pascal figure no longer sorts the products by price or position — and the number that would complete the picture is printed right next to it.