iRobot Roomba Plus 575 Combo · iRobot Roomba Plus 678 Combo

Compact footprint, compact suction: the 46% smaller chassis that fits under beds and sofas runs 25,000 Pa, below iRobot’s higher-suction combo tiers.

Runtime and weight go undocumented because iRobot has not published them, even though suction, dock temperatures and mop mechanics are all fully specified.

Seven weeks old: no independent reliability record exists yet.

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 larger than roughly 3,000 sqft on one level

iRobot has not published runtime, weight or recharge-and-resume specifics for this SKU, so single-charge coverage of large single-level layouts is unconfirmed.

Thick, high-pile or shag carpet needing deep-clean suction

25,000 Pa is iRobot's compact-tier suction, below its higher-suction AutoWash-dock combos; dense high-pile pickup is not independently documented for this model.

Buyers who need a proven multi-year reliability record before purchase

The 575 Combo launched 28 Jul 2026; no independent teardown, failure report or owner-forum thread yet exists to evaluate the dock or the robot itself.

Owners needing confirmed battery runtime before buying

iRobot has not published runtime, battery capacity or the robot's weight for this SKU, so per-charge coverage cannot be confirmed ahead of purchase.

Owners wanting truly zero-touch maintenance with no dock refills

The AutoWash Dock automates emptying, washing and drying, but its water reservoir and detergent supply still need periodic manual refills despite the documented months-long hands-off window.

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.