Eufy S1 vs Eufy C28

Same concept, different muscle. The S1's roller presses harder and cleared 9 of 12 dried stains in one pass — best in our fleet — where the C28 managed 7 of 12, with the gap concentrated in baked-on messes like 24-hour juice rings. On routine kitchen film, results are indistinguishable.

The C28 carries the bigger fan — 15,000 Pa against the S1's more modest spec — and posted slightly stronger raw debris pickup. Neither is a carpet machine; both lift their rollers over rugs and treat vacuuming as the supporting act. Mild edge to the cheaper robot.

Both stations wash, refill, and heat-dry, but the S1's station is the more refined system — better drying, less frequent deep-cleaning of the tray in our experience. The C28 answers with a meaningfully smaller footprint, which apartment owners will count as its own win.

The C28 delivers the core innovation — mopping with continuously rinsed water instead of an increasingly filthy pad — for hundreds less. Unless your floors regularly feature dried-on disasters, the cheaper roller does the same daily job.