Roborock Qrevo S5V vs Roborock S8 MaxV Ultra: Mid-Range Value vs Previous-Gen Premium

Cleaning Performance

The S5V’s 12,000Pa suction edges the S8 MaxV Ultra’s 10,000Pa by 20%. On medium-pile carpet, the S5V achieves 92% embedded sand removal — strong for its price class. The S8 MaxV Ultra scored 96.4% debris removal by weight in lab testing, but that metric measures surface debris differently than embedded sand extraction.

The S5V’s Triple Anti-Tangle System delivers a 0% hair tangle rate. The S8 MaxV Ultra’s brush handles hair adequately but doesn’t achieve the same zero-tangle performance.

For mopping, the S5V uses dual spinning pads at 200 RPM with FlexiArm for edge and corner coverage. The S8 MaxV Ultra’s VibraRise 3.0 vibrating pads scrub at 4,000 times per minute and lift 20mm over carpet — the higher mop lift is useful for homes mixing hard floors and carpeted rooms. The S5V covers edges better; the S8 MaxV Ultra scrubs harder and lifts higher.

Winner: Roborock Qrevo S5V — 20% more suction, 0% hair tangling, and FlexiArm edge mopping. The S8 MaxV Ultra’s vibrating mop and lab scores are respectable but don’t overcome the suction gap.

Navigation & Obstacle Avoidance

The S8 MaxV Ultra uses LiDAR, 3D structured light, and an RGB camera with Reactive AI 2.0. The camera identifies specific objects — shoes, cables, pet waste — and enables video monitoring. This is the S8 MaxV Ultra’s clearest advantage.

The S5V uses LiDAR with 3D structured light but lacks an RGB camera. It avoids larger obstacles but struggles with thin cables and small items. No pet waste avoidance, no video streaming. Below-average obstacle avoidance is the S5V’s biggest weakness.

Both robots map homes accurately with LiDAR and support multi-floor mapping with room-specific settings.

Winner: Roborock S8 MaxV Ultra — The RGB camera provides pet waste detection, object-specific avoidance, and video monitoring that the S5V cannot match.

Dock & Maintenance

The S5V’s dock handles auto-empty, mop wash, warm-air dry, and auto water refill. It’s a complete automation package for a mid-range robot.

The S8 MaxV Ultra’s 8-in-1 RockDock adds hot water mop washing, auto detergent dispensing, and an optional Refill & Drainage System that connects to home plumbing. The auto detergent means you never manually add cleaning solution. The plumbed option eliminates water tank management entirely.

The S8 MaxV Ultra’s dock is genuinely more capable. The auto detergent and plumbed option represent real convenience improvements over the S5V’s solid but simpler dock.

Winner: Roborock S8 MaxV Ultra — Auto detergent, hot water wash, and optional plumbed water system provide meaningfully less maintenance.

Battery & Runtime

Both robots run 180 minutes per charge. Identical battery life means neither has an advantage in coverage area per charge. Both handle large homes on a single run.

Winner: Tie — Same 180-minute runtime.

Value & Price

The S5V at $499-599 (typically $549) costs $400 less than the S8 MaxV Ultra at $899-1,799 (typically $949). For $400 less, the S5V delivers 20% more suction, 0% hair tangling, FlexiArm edge mopping, and a slimmer profile (3.8 vs 4.06 inches).

The S8 MaxV Ultra’s $400 premium buys an RGB camera, auto detergent, optional plumbed water, and superior obstacle classification. These are real features, but they’re incremental comforts — not cleaning performance improvements.

The S5V cleans harder, tangles less, mops edges better, and costs 42% less. The S8 MaxV Ultra is worth considering only if you specifically need the camera or plumbed water system. For general-purpose robot vacuum duty, the S5V is the better buy within the Roborock lineup.

Winner: Roborock Qrevo S5V — Superior suction and cleaning features at 58% of the S8 MaxV Ultra’s price. The camera and dock upgrades don’t justify a 73% premium.