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Robovations
Robovations™
Robot Autonomy, Classified
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Comparison · 2 robots

Roborock Qrevo Master · Roborock S8 MaxV Ultra

All robot vacuums. Every measure below is plotted against the full class, so a difference can be read against how much the class itself varies.

  1. Roborock Qrevo Master
  2. Roborock S8 MaxV Ultra

Up to three

01 Classification

What each one does on its own.

The Autonomy Ladder is the same five rungs for every robot on the site. A rung describes the conditions a robot handles without you, not how good it is.

V
Generalized
Any task, any setting
IV
Environmental
Handles new obstacles without help
III
Conditional
Finishes familiar jobs on its own
Roborock Qrevo MasterRoborock S8 MaxV Ultra
II
Assisted
Runs preset routines, needs rescue
I
Manual
One action, on command
02 Assessment

Where they actually differ.

The Robovations Score is nine inputs across three pillars, each weighted as shown and each scored so that more is better. A robot can lead on one and trail on another, which is the point of showing them apart. Cost of ownership and data handling are reported on each robot's own page and are never averaged into the score.

Capability

Task completion16% of score
Does it finish the job it is sold to do, unattended
  • Roborock Qrevo Master78
  • Roborock S8 MaxV Ultra75
18median 72 across 429 scored robots100
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
  • Roborock Qrevo Master86
  • Roborock S8 MaxV Ultra100
0median 70 across 417 scored robots100
Edge-case recovery10% of score
Does it recover from the failures its category presents
  • Roborock Qrevo Master48
  • Roborock S8 MaxV Ultra62
18median 52 across 318 scored robots100
Operating envelope4% of score
How far conditions can vary before performance drops
  • Roborock Qrevo Master75
  • Roborock S8 MaxV Ultra75
28median 68 across 393 scored robots100

Dependability

Field failure rate16% of score
Documented hardware failures per owner-year
  • Roborock Qrevo Master77
  • Roborock S8 MaxV Ultra91
6median 70 across 355 scored robots100
Software stability14% of score
Whether updates fix more than they break
  • Roborock Qrevo Master74
  • Roborock S8 MaxV Ultra95
15median 65 across 340 scored robots100
Support longevity10% of score
Committed parts, service and updates, with dates
  • Roborock Qrevo Master88
  • Roborock S8 MaxV Ultra94
0median 62 across 425 scored robots100

Ownership burden

Routine maintenance12% of score
Hands-on time it asks for in normal operation
  • Roborock Qrevo Master87
  • Roborock S8 MaxV Ultra84
22median 67 across 430 scored robots100
Consumables8% of score
Parts that must be bought to keep it working
  • Roborock Qrevo Master69
  • Roborock S8 MaxV Ultra83
8median 69 across 430 scored robots100
03 Measured against the class

How far apart is a long way?

A number only means something next to the spread it sits in. Each track below is the real range across every classified robot in the class, with the median marked.

Price214 with a published figure
  • Roborock Qrevo Master$1,599
  • Roborock S8 MaxV Ultra$1,799
$160median $799.99$2,599
Suction (mode not stated)207 with a published figure
  • Roborock Qrevo Master10,000 Pa
  • Roborock S8 MaxV Ultra10,000 Pa
1,000 Pamedian 10,000 Pa42,000 Pa
Runtime186 with a published figure
  • Roborock Qrevo Master180 min
  • Roborock S8 MaxV Ultra180 min
60 minmedian 180 min360 min
Charge time165 with a published figure
  • Roborock Qrevo Master180 min
  • Roborock S8 MaxV Ultra180 min
90 minmedian 240 min420 min
Noise156 with a published figure
  • Roborock Qrevo Master67 dB
  • Roborock S8 MaxV Ultra67 dB
43 dBmedian 67 dB80 dB
Height223 with a published figure
  • Roborock Qrevo Master4.1 in
  • Roborock S8 MaxV Ultra4.1 in
2.6 inmedian 3.8 in7.8 in

Not compared, because fewer than two of these robots carry a published figure: Weight.

04 Ownership

What the numbers leave out.

The trade-off

What each design gives up to be good at what it is good at.

Roborock Qrevo Master

The retractable arm adds capability at the cost of dock complexity. Mop-pad alignment and rotating-mechanism maintenance will dominate the hands-on effort, not the base autonomy.

Self-washing pads trade a chore for a consumable. The station rinses and dries the pads after each run instead of leaving that to the sink, and the pads still wear out and get replaced; a stationary pad you wash yourself lasts longer between purchases because it spends less time in a wash cycle.

Roborock S8 MaxV Ultra

Establishment time (30-45 min initial training, room marking) buys hands-off cycles (leave home, returns to dock, scheduled mopping prep).

All-in-one dock adds mopping and hot-water drying but increases weekly maintenance complexity (filter + nozzle + water-tank lifecycle).

Who each one is wrong for

Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.

Roborock Qrevo Master
Renters or frequent-move situations
The station is 340 mm (13.4 in) wide and needs a patch of floor against a wall with an outlet. Nothing is plumbed or permanently installed: the 4L clean and 3.5L dirty water tanks lift out and are filled and emptied by hand, and setup is plugging it in and filling the clean tank. What it costs is fixed floor area, which a small apartment may not have to give.
High-pile or shag carpet homes
Rotating pads are designed for hard and low-pile surfaces. Manufacturer documentation does not recommend use on high-pile carpet.
Owners wanting minimal dock maintenance
Mop pad washing, dust auto-empty, and water tank refills require monthly water tank cleaning and quarterly filter replacement to prevent odor and motor load.
Roborock S8 MaxV Ultra
Frequent furniture rearrangement or clutter-heavy homes
Dynamic layouts require map retraining; cluttered rooms with low-profile items confuse camera detection. Manual map updates add 15-20 minutes per change cycle.
Budget-first or privacy-conscious buyers
The purchase price is the barrier, not the running cost: official dock bags are about $4.30 each in Roborock's 6-pack, roughly $25 a year. On privacy, the app requires an account and maps and camera images sync to Roborock's cloud servers, with no user-facing local-only mode.
Hands-off operation without dock maintenance
Weekly dock filter cleaning, monthly nozzle inspection and periodic bag changes are not optional. Neglected dock maintenance shows up in mopping quality within 2-3 months.
Homes with only hard floors or minimalist spaces
Mopping capability adds complexity and dock footprint. Budget L2 vacuums better suited for straightforward hard-floor-only maintenance without wet-cleaning overhead.

What stays your job

The upkeep ownership hands back to you, whatever the autonomy level says.

Roborock Qrevo Master
  • Weekly: Empty the station’s dirty-water tank and refill the clean-water tank; clear hair from the wheels and main brush.
  • Monthly: Rinse the wash tray and the station’s water path; wipe out both tanks.
  • Every 3-6 months: Replace the mop pads once the pile has matted (~$30-40 per pair); replace the main brush and side brush if matted (~$25-35 for a brush kit).
  • Every 6-12 months: Replace the filter; two spares ship in the box.
  • As needed: Replace the station’s dust bag when it is full.
Roborock S8 MaxV Ultra
  • After every use: Empty the mopping water tank, rinse the mop tray, check dock dust cap alignment.
  • Weekly: Wash the dock filter, clear hair from the main brush and the FlexiArm side brush, inspect the spray nozzles for clogs.
  • Monthly: Wipe the dock spray heads and wash tray with clean water, check suction, wipe the LiDAR window and the front camera. Water only: vinegar and descaling acid attack the dock’s pump and seals.
  • Every 3-6 months: Replace main brush bristles (approximately $25 replacement cost).
  • Every 60-90 days: Replace the dock’s 2.5 L disposable dust bag. Roborock sells the official 6-pack for $25.59, about $4.30 a bag, so bags run roughly $25 a year.
  • Annually: Inspect all seals and water tanks for leakage and calibrate camera focus.
  • As needed: Manual tangle removal from the side brush, remapping if furniture moves significantly, unclogging water nozzles. Refill the dock’s detergent reservoir with Roborock’s own solution only.
05 Evidence

How much each of these is standing on.

Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.

Evidence behind each classification
Robot Evidence status Sources reviewed Last assessed
Roborock Qrevo Master Pending 4 Sep 2026
Roborock S8 MaxV Ultra Provisional 15 Aug 2026

Robovations classifies robots; it does not rank them. Nothing on this page is a recommendation, and no manufacturer influences a classification or its placement here.