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Robovations
Robovations™
Robot Autonomy, Classified
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Comparison · 2 robots

Eufy RoboVac 15C Max · Shark ION Robot 750

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. Eufy RoboVac 15C Max
  2. Shark ION Robot 750
Eufy

Eufy RoboVac 15C Max

Autonomy
II Assisted Autonomy
Score
42/100 Limited
Readiness
Wait
Price
$259.99list
Shark

Shark ION Robot 750

Autonomy
II Assisted Autonomy
Score
55/100 Capable
Readiness
Ready Now
Price
$349list

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
II
Assisted
Runs preset routines, needs rescue
Eufy RoboVac 15C MaxShark ION Robot 750
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
  • Eufy RoboVac 15C Max62
  • Shark ION Robot 75045
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
  • Eufy RoboVac 15C Max35
  • Shark ION Robot 75025
Edge-case recovery10% of score
Does it recover from the failures its category presents
  • Eufy RoboVac 15C Max50
  • Shark ION Robot 75053
Operating envelope4% of score
How far conditions can vary before performance drops
  • Eufy RoboVac 15C Max70
  • Shark ION Robot 75035

Dependability

Field failure rate16% of score
Documented hardware failures per owner-year
  • Eufy RoboVac 15C Max44
  • Shark ION Robot 75085
Software stability14% of score
Whether updates fix more than they break
  • Eufy RoboVac 15C Max65
  • Shark ION Robot 75082
Support longevity10% of score
Committed parts, service and updates, with dates
  • Eufy RoboVac 15C Max20
  • Shark ION Robot 75040

Ownership burden

Routine maintenance12% of score
Hands-on time it asks for in normal operation
  • Eufy RoboVac 15C Max32
  • Shark ION Robot 75043
Consumables8% of score
Parts that must be bought to keep it working
  • Eufy RoboVac 15C Max32
  • Shark ION Robot 75083
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.

Price193 with a published figure
  • Eufy RoboVac 15C Max$259.99
  • Shark ION Robot 750$349
$149median $699.99$1,799
Runtime168 with a published figure
  • Eufy RoboVac 15C Max100 min
  • Shark ION Robot 75060 min
60 minmedian 180 min360 min
Charge time150 with a published figure
  • Eufy RoboVac 15C Max300 min
  • Shark ION Robot 750300 min
90 minmedian 240 min420 min
Noise148 with a published figure
  • Eufy RoboVac 15C Max55 dB
  • Shark ION Robot 75064 dB
43 dBmedian 67 dB80 dB
Weight171 with a published figure
  • Eufy RoboVac 15C Max3.6 lbs
  • Shark ION Robot 7505.1 lbs
3.3 lbsmedian 8.2 lbs36.4 lbs
Height189 with a published figure
  • Eufy RoboVac 15C Max2.9 in
  • Shark ION Robot 7502.6 in
2.6 inmedian 3.8 in21.4 in

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

04 Ownership

What the numbers leave out.

The trade-off

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

Eufy RoboVac 15C Max

eufy publishes 55 dB, and the quiet comes with modest suction: higher-powered machines run louder and move more air. The 15C trades pickup on deep pile for a noise level that suits shared walls.

Shark ION Robot 750

App scheduling and voice control arrived early for the price tier, but navigation is sensor-reactive, so coverage is approximate and cleaning order is not controllable.

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.

Eufy RoboVac 15C Max
Multi-room or multi-floor homes over 1,200 sqft
Bump navigation builds no map, so coverage is a function of run time rather than a planned route. The robot re-crosses ground it has already done and cannot pick up an unfinished area on the next pass. Larger floorplans need repeat runs with no guarantee of complete coverage.
Homes with pets or high-maintenance carpets
BoostIQ raises suction when it detects heavier debris, but there is no dedicated carpet mode and the 0.6 liter bin fills quickly in a pet household. Sustained high suction also shortens the run.
Owners wanting room-level control or no-go zones
The 15C Max pairs to the eufy Clean app over 2.4 GHz Wi-Fi and works with Alexa and Google Assistant, but it builds no map. There are no room labels, no zone cleaning and no virtual boundaries; closing a door is the way to keep it out of a space.
Shark ION Robot 750
Homes needing room-targeted or zoned cleaning
With no mapping, the 750 cannot clean specific rooms or honor virtual zones; physical BotBoundary strips are the only containment tool.
Users wanting multi-floor persistence without manual intervention
The 750 stores no map on any floor, so there is nothing to save, switch or resume. Each run is an independent random pass over whatever the robot reaches.
Owners prioritizing hands-off maintenance
No self-emptying dock; manual bin emptying required every 2-3 sessions in typical homes.
Homes with thick or high-pile carpet and heavy pet shedding
Shark publishes no suction rating for the ION 750, so there is no manufacturer figure to compare it against other machines on. Owner reports document clumping on deep carpet with pet hair.
Owners wanting the latest firmware support
Shark has moved focus to newer ION models; older firmware updates are infrequent.

What stays your job

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

Eufy RoboVac 15C Max
  • Weekly: Empty dust bin; clean bump sensors on front bumper; remove hair from side brush.
  • Every 2-3 weeks: Wash filter with water and dry completely (~24 hours) before reinstalling.
  • Monthly: Check wheels for hair wrapping; clean main brush for matted fibers.
  • Every 3-4 months: Replace main brush (~$16); examine battery for swelling.
  • Every 6-9 months: Replace filter even if washable to maintain suction (~$12 per filter).
Shark ION Robot 750
  • Weekly: Empty dust bin; check primary brush for hair tangles.
  • Monthly: Wipe sensor windows with a soft cloth; clean wheel undercarriage.
  • Every 3-6 months: Inspect charging dock contacts and clean with dry cloth.
  • Annually: Replace primary brush (~$30); replace secondary side brush (~$15).
  • As needed: Reposition BotBoundary strips when the furniture layout changes; there is no map to update.
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
Eufy RoboVac 15C Max Discontinued 5 Apr 2026
Shark ION Robot 750 Discontinued 6 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.