Eufy C28 Omni · iRobot Roomba Plus 678 Combo

The mop system earns a top-ten third-party mopping benchmark; the obstacle avoidance that comes with it is mid-tier at best.

Dock automation is as thorough as any platform in this price segment, but the 4.35-inch robot body excludes it from furniture gaps where thinner flagships operate.

The AutoWash dock hot-washes and heat-dries the roller mop and auto-empties the bin, but that is more moving parts in the dock than a dry-empty-only station, and none of it has independent long-term reliability data yet.

Undercuts the Max 875 Combo by roughly $300 with the same AutoWash dock architecture, but at lower rated suction (30,000 Pa), so the price gap likely tracks a real carpet-cleaning gap, not just branding.

Homes with heavy furniture clutter or low thresholds

iPath 2.0 avoided only 15 of 24 test obstacles in Vacuum Wars benchmarks, below premium competitors. The squared body also produced documented scratching on metal obstacles when reversing.

High-pile or thick rug households

Notebookcheck testing documented the C28 struggling to climb 25-26mm rug pile despite a 10.8mm mop lift. High-pile coverage is not confirmed in manufacturer specs.

Owners wanting the absolute strongest suction in class

At 15,000 Pa, suction is competitive but below the class ceiling: the Roborock Saros 10 is rated 22,000 Pa at a higher price point. Owners for whom peak suction is the deciding specification have higher-rated options.

Low-clearance furniture situations

At 4.35 inches (110mm) tall, the C28 is above average height for its class. Units with sub-3.5-inch clearance requirements will need a lower-profile model.

Homes with thick or high-pile carpet needing deep-clean suction

No independent suction or high-pile test results are documented for this model; iRobot's non-flagship Combo units have historically shown reduced pickup on thick carpet.

Buyers who want the Max tier's higher rated suction

The Plus 678 is rated at 30,000 Pa; the sibling Max 875 Combo carries a higher published suction figure, so serious carpet cleaning likely favors the pricier model.

Very large or multi-level homes needing single-pass coverage

Independent multi-level coverage testing does not yet exist for this model; recharge-and-resume adds passes rather than eliminating them on large floor plans.

Buyers who need proven multi-year reliability data before purchase

The model shipped twelve days before this assessment; no independent failure report, teardown, or owner-forum thread yet exists to evaluate the dock's hot-water wash mechanism or the robot itself.