Eufy E28 vs Narwal Flow

The Narwal Flow wins on core cleaning, with slightly stronger suction, a larger water tank and 5 GHz Wi-Fi. The Eufy E28's standout is its detachable portable cleaner for stairs, upholstery and cars, a feature the Flow does not have at all.

Mopping technology and a bonus tool. The Narwal Flow's FlowWash mop rinses itself in hot water continuously while it cleans, while the Eufy E28 washes its mop at the dock between runs and adds a detachable spot cleaner the Flow lacks.

A handheld unit that lifts out of the E28's station and is used by hand on upholstery, stairs, car interiors and set-in carpet stains, jobs the robot itself cannot do.

The Narwal Flow, rated at 22,000Pa against the Eufy E28's 20,000Pa, though the difference is small enough that most owners would not notice it.

Buyers who want a robot vacuum bundled with a detachable handheld cleaner for stairs, upholstery and car interiors, on top of a longer runtime and bigger dock dust bag.

Buyers focused on mopping quality and connectivity: a self-rinsing hot-water mop, a larger water tank and dual-band Wi-Fi, on a home that is mostly hard floor.