Eufy Omni C28 Review: Value Flagship Mop

Eufy Omni C28 at a Glance

The Omni C28 sits at the top of Eufy's value-focused C-Series, above the vacuum-only C10 and the mop-equipped C20. Eufy positions it as an upgrade over the 2024 X10 Pro Omni, with a higher suction rating and several dock improvements.

Its headline feature is the HydroJet roller mop. Fresh water sprays onto the roller as it cleans, while dirty water collects in a separate tank instead of spreading back onto the floor. The mop spins at 270 RPM and applies 9.8 newtons of pressure, lifting 10.8 mm automatically when it detects carpet.

List pricing runs $799.99, but the C28 is frequently discounted to around $529.99. At that street price, it undercuts most robot vacuums with a comparable feature set by several hundred dollars.

The dock also handles the maintenance side automatically: emptying dust, refilling and draining the water tanks, and drying the mop roller between runs. A household is not manually swapping a mop pad every day the robot runs.

• 15,000 Pa suction with a DuoSpiral anti-tangle main brush and dual side brushes
• HydroJet roller mop: 270 RPM, 9.8N pressure, 10.8mm auto-lift over carpet
• iPath 2.0 LiDAR navigation with multi-floor mapping
• Self-emptying dock with 50°C (122°F) hot-air mop drying
• $799.99 list price, frequently discounted to around $529.99

The HydroJet Mop's Test Results

In a dried-stain mopping test, the Omni C28 scored 119 points against a 108-point category average. Water residue after mopping measured just 0.25 grams, against a 1.07-gram average, a result that limits streaking on hard floors more than the stain score alone suggests.

Combined into one mopping score, the Omni C28 reached 29 points. That places it among the top 10 robot mops in the tested database, well above the roughly 20-point category average. For a robot priced under most flagship rivals, that is a genuinely uncommon result.

The continuous-clean design is the mechanism behind both numbers. Because the roller is rinsed with fresh water while it works, it never redeposits dirty water the way a static spinning pad can on a long run. That distinction shows up most on a large single-level home, where a spinning-pad robot mops the last room with water that already carried dirt from the first.

Vacuuming and Pet Hair Performance

Suction is rated at 15,000 Pa, ahead of comparably priced rivals like the MOVA P10 Pro Ultra's 13,000 Pa. It pairs that with a DuoSpiral anti-tangle main brush and dual side brushes, one of which extends automatically for edge and corner reach.

In a carpet deep-clean test that embeds sand into medium-pile carpet, the Omni C28 removed 89% of the debris against a 78% category average. That result comfortably beats the MOVA P10 Pro Ultra's 81% on the same test, a meaningful gap for a household with heavier carpeting.

Pet hair pickup was a standout result: 100% removal in a 2.5-inch flattened pet-hair test, against an 82% category average. The DuoSpiral brush's split-center design funnels hair straight into the dustbin. That backed up the pickup score with a perfect 0% tangle result in a 7-inch hair test, against a 26% average.

Crevice cleaning, tested along grout lines and flooring seams where debris tends to collect, scored 2.5 against a 2.0 average. Combined with the pet-hair and carpet results, the Omni C28's vacuuming performance clears the bar its mopping numbers set.

Where the C28 Falls Short: Obstacle Avoidance and Height

Obstacle avoidance is the Omni C28's clearest weakness. It uses basic LiDAR and line-laser detection rather than a camera-based AI system. It avoided 15 of 24 test obstacles, just below the 15.7 average. That is a real step down from Eufy's own E25 model, which scored 21 of 24 at a higher price point.

At 4.4 inches tall, the Omni C28 is taller than the roughly 3.8-inch category average, a side effect of packing the roller-mop hardware into the body. Homes with low-clearance beds or sofas should measure the gap before buying.

Battery efficiency also lands below average: 1.21 square meters cleaned per 1% of battery, against a 1.56 average. Strong navigation efficiency partly offsets that weakness, pushing estimated single-charge coverage to about 1,191 square feet against a 1,170-square-foot average.

Navigation and Dock Automation

The Omni C28 navigates with Eufy's iPath 2.0 LiDAR system. In independent testing it reached 0.91 square meters of coverage per minute. That beats the roughly 0.7 average and the MOVA P10 Pro Ultra's 0.86, meaning it wastes less time on redundant passes than most robots at its price.

The dock automatically empties the dustbin, refills and drains the water tanks, and dries the mop roller with 50°C hot air. That hot-air step matters for odor control specifically: a mop roller left damp between runs is the most common source of a lingering mildew smell in a robot vacuum dock.

The Eufy app supports no-go zones, multi-floor mapping, and third-party voice assistants. It also lets a user adjust suction levels and choose how many cleaning passes the robot makes per room. Those per-room controls matter more in a home with mixed carpet and hard flooring than a single flat cleaning mode ever could.

It lacks a single one-button vacuum-then-mop sequence that rival apps from Roborock build in. The workflow is still possible manually, just with an extra step each time. A user starts the vacuum pass, waits for it to finish, then starts a separate mopping pass instead of letting the robot chain both automatically.

How the C28 Fits Against Pricier Eufy Models

Eufy's own lineup makes the value case clearest. The step-up E25 trades the C28's basic LiDAR for a camera-based obstacle system and scores 21 of 24 on obstacle avoidance, six objects better than the C28's 15. It costs more, and it drops the HydroJet roller mop for a simpler pad design.

Neither model wins on every category. The E25 buyer accepts a weaker mop for stronger obstacle handling. The C28 buyer accepts weaker obstacle handling for a top-10 mop. A household should decide which category matters more before comparing price tags.

A mixed-floor home with mostly hard flooring and light clutter gets more value from the C28's mop upgrade than from the E25's obstacle upgrade. A home with pets that leave toys, leashes, and food bowls scattered on the floor gets more value the other way around. Both scenarios are common, which is why neither model makes the other obsolete.

At full retail, the price gap between the two models is real but not enormous. At the C28's typical $529.99 street price, the gap widens enough that most buyers who value mopping should stop comparing and just buy the C28.

Who Should Buy the Eufy Omni C28

A pet-owning household prioritizing mopping quality and hard-floor cleaning over top-tier obstacle handling is the clearest fit. At its typical $529.99 street price, the Omni C28's top-10 mopping score and perfect pet-hair pickup are hard to match below $600.

A household with a lot of loose cords, toys, or pet waste on the floor should look elsewhere. The Omni C28's 15-of-24 obstacle avoidance score is below average. A camera-based competitor will avoid more of that clutter without a manual pre-clean pass first. Running a quick floor pickup before each cleaning cycle narrows that gap, but it does not close it.

A firmware update is unlikely to fix this gap, since the limitation is the sensor hardware itself, not software tuning. Only a camera-based redesign, the kind Eufy already ships on the pricier E25, would remove the C28's one real weakness relative to its mopping and vacuuming scores. Until Eufy makes that change, a buyer choosing the C28 accepts weaker obstacle handling in exchange for its mopping and price advantage.