Key Takeaways
- Suction power jumps from 8,000Pa to 30,000Pa, a 4x improvement over the S1
- New fragrance diffuser addresses the 'bad vacuum breath' problem common in pet households
- Battery life sits at 150 minutes, mid-range for its class, and the dock is taller than competitors
Eufy's Omni S2 robot vacuum and mop combo fixes the two complaints that plagued its predecessor: weak carpet cleaning and the funky smell that accumulates when wet mop rollers sit in a dock. The S2 cranks suction from 8,000Pa to 30,000Pa and adds a fragrance diffuser that, surprisingly, works.
ZDNET reviewer Maria Diaz spent two years with the S1 as her daily driver. She liked it. But carpet performance disappointed, and the detergent container had a design flaw: it ballooned with air when emptied, interfering with the clean water tank. Eufy patched that with a vent on the S2. Small fix, big difference.
What changed from the S1 to the S2?
The headline number is suction. Eufy quadrupled it. At 30,000Pa, the S2 sits near the top of the consumer robot vacuum market. That muscle shows on carpets. The robot digs into short-pile and medium-pile fibers, pulling out sand, dirt, and pet hair that other machines leave behind.
The second change is odor control. Robot vacuums in pet households develop what Diaz calls 'bad vacuum breath.' Wet mop pads sit in the dock, bacteria grows, and every self-empty cycle pushes that smell into your living room. Eufy added a fragrance diffuser. Gimmicky? That was Diaz's first reaction. But she reports it works from the first use.
The S2 also cleans with electrolyzed water, which Eufy claims provides better disinfection than plain tap water. And the mop roller gets rinsed with fresh water, not the murky stuff sitting in a basin.
Where does the S2 fall short?
Three things. First, the dock is tall. If you want to tuck your robot station under a cabinet, measure first. Second, battery life lands at 150 minutes, mid-to-low for this class. Large homes may see the robot return to charge mid-clean. Third, the water tanks need refilling more often than competing hands-free models. Eufy prioritizes fresh-water mopping over convenience.
None of these are dealbreakers. But they matter if you're comparing the S2 against alternatives like the Roborock S8 MaxV Ultra or the Dreame X40 Ultra.
How does it compare to Roborock and Dreame?
Eufy positions the Omni series as a value play. The S2 competes on features with robots priced $200 to $400 higher. Roborock's S8 MaxV Ultra offers similar suction (10,000Pa in standard mode, boosting higher on carpet) and a more compact dock. Dreame's X40 Ultra matches the 30,000Pa figure and adds a retractable mop to keep carpets dry. Both cost more.
For pet owners, the S2's edge is the fragrance diffuser and the tangle-free brush roll. Roborock and Dreame have improved hair handling, but odor control remains an afterthought in most designs.
Logicity's Take
Eufy's real innovation here isn't the 30,000Pa suction. It's treating odor as a design problem, not a user problem. Most robot vacuum makers expect you to clean the dustbin and wash the mop pads. Eufy built ventilation and fragrance directly into the dock. For CTOs evaluating office cleaning automation, or founders who just want a robot that doesn't stink, that's a meaningful differentiator. The S2 likely competes at the $700 to $900 price point once discounts settle, putting it below Roborock's flagship tier.
Who should buy the Eufy Omni S2?
Pet owners with carpets. That's the sweet spot. The 30,000Pa suction handles embedded hair better than most competitors, and the odor mitigation solves a problem nobody else is addressing at this price. If your floors are all hardwood and you have no pets, you're paying for features you won't use.
ZDNET gave the S2 a 4.5 out of 5, docking points for the tall dock and mid-range battery. That tracks. This is a very good robot vacuum with clear trade-offs, not a perfect one.
Frequently Asked Questions
How much suction does the Eufy Omni S2 have?
The S2 delivers 30,000Pa of suction, a 4x increase over the S1's 8,000Pa.
Does the Eufy Omni S2 work on carpet?
Yes. The high suction power lets it clean short-pile and medium-pile carpets effectively, pulling out pet hair and dirt that other robots leave behind.
How long does the Eufy Omni S2 battery last?
Battery life is rated at 150 minutes, which is mid-to-low for this class of robot vacuum.
Does the Eufy Omni S2 mop with clean water?
Yes. The mop roller is rinsed with fresh water, and the robot uses electrolyzed water for cleaning.
What is the fragrance diffuser on the Eufy Omni S2?
The S2 includes a fragrance diffuser in the dock to counteract the odors that accumulate from wet mop pads and vacuum dust, particularly in homes with pets.
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Source: Latest news
Manaal Khan
Tech & Innovation Writer
Produced with AI assistance and reviewed by the Logicity editorial team. Learn more in our Editorial Policy.
