Both the Eufy Omni E25 and the Roborock P20 Ultra share a strong baseline of features: HEPA and allergy filtration, full voice assistant compatibility with both Google Assistant and Alexa, and an identical 1-year warranty. For users prioritizing air quality or smart home integration, either robot delivers equally on these fronts.
The most striking difference lies in the physical specs. The E25 weighs just 1,500 g versus the P20 Ultra's 3,800 g — more than twice as heavy — which matters most during manual handling, transport, or maintenance. Despite being lighter, the E25 is slightly bulkier as a unit (12,559 cm³ vs 9,859 cm³), meaning it may have a harder time fitting under low furniture. The P20 Ultra's more compact robot body trades portability for a smaller, sleeker profile on the floor. On noise, the E25 has a meaningful acoustic edge at 60 dB compared to the P20 Ultra's 64.5 dB — a 4.5 dB gap that is perceptibly quieter in a typical home environment, especially during daytime or evening cleaning cycles.
From a convenience standpoint, the E25 also pulls ahead with an estimated dust bin empty interval of 75 days versus 56 days, reducing how often the base station needs attention. The E25's docking station is also notably more compact (74,168 cm³ vs 88,316 cm³), making it easier to fit into tighter spaces. Overall, the Eufy Omni E25 holds a clear edge in this general category — it is quieter, lighter, requires less frequent maintenance, and has a smaller dock footprint — while the P20 Ultra's only advantage here is a more streamlined robot body profile.