Eufy Omni C28 Drops to $449.99 for Prime Day — $350 Off a Self-Cleaning Dock That Usually Costs More

Eufy's Omni C28 robot vacuum and mop hybrid is priced at $449.99 at Amazon during Prime Day, down $350 from its $799.99 list price and a new low for the model. The same price is available directly on Eufy's site with the code WS24C28200NEW — giving buyers a rare two-channel option at an identical discount.

Why the Dock Is the Real Story

The C28's multifunction dock is the feature that most directly justifies the list price, and it's what makes the discount commercially significant. The dock automatically washes the mop roller with hot water and dries it with hot air after each run — a self-maintenance capability that Eufy and most reviewers categorize as a flagship-tier feature, typically priced out of reach for mid-range shoppers.

That matters competitively: the category has long been divided between cheap, manual-upkeep machines and expensive self-sufficient ones. The C28, even at full price, sits in the gap. At $449.99, it undercuts most competitors offering comparable dock functionality.

Performance: What the Testing Found

Jennifer Pattison Tuohy, the smart home reviewer for The Verge, tested the C28 and noted it navigated and maneuvered well for a roller-mop bot — specifically calling out its ability to climb over the legs of a lounger chair, something she found larger, more expensive competitors often fail to do. The machine also performed well along edges and corners, and its narrower profile let it fit into tight spaces, making it a practical fit for apartment-sized floor plans.

On cleaning performance, the C28 picked up dried oatmeal and debris from carpet. Its dual spiral roller brushes remained tangle-free after a week of continuous mopping and vacuuming across hard floors and rugs.

Trade-Offs to Know Before Buying

The C28 does not include a camera, which Tuohy identified as a privacy advantage but noted comes at a functional cost: obstacle detection is only so-so. Buyers who leave items on the floor will need to clear them before each run — the machine's ability to route around unexpected objects is limited without the visual sensor that pricier models use.

That trade-off is consistent across the category at this price point, not specific to Eufy. For shoppers whose priority is a clean floor rather than a hands-free, obstacle-ignoring experience, it is not a disqualifying gap.

Bottom Line

At $449.99, the Eufy Omni C28 offers the self-cleaning dock feature — the single most maintenance-reducing upgrade in the robot vacuum category — at a price point that has historically required a compromise on that capability. The Prime Day window makes that case more directly than the standard list price does.

Related reading

• Lenovo Legion Go S Drops to $549.99 at Amazon for Prime Day
• Oura Ring 4 Drops to $226 on Amazon for Prime Day, $123 Below Standard Price