Skip to content
Robovations
Robovations™
Robot Autonomy, Classified
Saved
Comparison · 2 robots

Gardena Sileno Life 750 · Stihl iMow 6 EVO

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

  1. Gardena Sileno Life 750
  2. Stihl iMow 6 EVO
Gardena

Gardena Sileno Life 750

Autonomy
II Assisted Autonomy
Score
70/100 Strong
Readiness
Ready Now
Price
$1,199list
Stihl

Stihl iMow 6 EVO

Autonomy
II Assisted Autonomy
Score
67/100 Capable
Readiness
Ready Now
Price
Not tracked

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
Gardena Sileno Life 750Stihl iMow 6 EVO
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
  • Gardena Sileno Life 75075
  • Stihl iMow 6 EVO76
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
  • Gardena Sileno Life 75050
  • Stihl iMow 6 EVO70
Edge-case recovery10% of score
Does it recover from the failures its category presents
  • Gardena Sileno Life 75038
  • Stihl iMow 6 EVO45
Operating envelope4% of score
How far conditions can vary before performance drops
  • Gardena Sileno Life 75062
  • Stihl iMow 6 EVO72

Dependability

Field failure rate16% of score
Documented hardware failures per owner-year
  • Gardena Sileno Life 75081
  • Stihl iMow 6 EVO62
Software stability14% of score
Whether updates fix more than they break
  • Gardena Sileno Life 75055
  • Stihl iMow 6 EVO0
Support longevity10% of score
Committed parts, service and updates, with dates
  • Gardena Sileno Life 750100
  • Stihl iMow 6 EVO72

Ownership burden

Routine maintenance12% of score
Hands-on time it asks for in normal operation
  • Gardena Sileno Life 75056
  • Stihl iMow 6 EVO62
Consumables8% of score
Parts that must be bought to keep it working
  • Gardena Sileno Life 75089
  • Stihl iMow 6 EVO80
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.

These robots share no measured specification with enough published figures to plot. That is a gap in the record, not a finding about the robots.

04 Ownership

What the numbers leave out.

The trade-off

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

Gardena Sileno Life 750

Random-pattern cutting inside a fixed wire keeps the machine simple and the setup permanent. You get an even lawn from cutting often; you do not get route planning or obstacle avoidance.

Stihl iMow 6 EVO

Not recorded for this robot.

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.

Gardena Sileno Life 750
Lawns with complex topography, slopes, or frequent obstacles
No avoidance capability; slopes >15°, rocks, toys, or garden furniture will cause collisions or stalling requiring manual recovery.
Users wanting wire-free, zero-setup autonomous operation
Boundary-wire infrastructure is mandatory. RTK or vision-based alternatives not available on this model.
Large estates or multi-zone properties over 750 sq m
Rated for 750 sq m maximum; properties larger than this exceed rated coverage and would require multiple units.
Stihl iMow 6 EVO

Not recorded for this robot.

What stays your job

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

Gardena Sileno Life 750
  • Weekly: Dock cleaning and mower base inspection for grass clippings and debris buildup.
  • Monthly: Blade inspection for dulling; jagged grass edges indicate wear requiring replacement.
  • Every 3-6 months: Replace the blades as a set (typically €15-25). They are flip-and-replace razors rather than sharpenable blades; grinding an edge back removes the coating and leaves a weakened blade spinning on an unattended machine.
  • Annually: Boundary wire inspection for breaks and corrosion; re-splicing or perimeter repair as needed (€0-500+ depending on property size and condition).
  • Seasonally: Spring startup (full charge, app pairing verification, dock contact cleaning); autumn storage with the mower cleaned, the battery charged rather than left flat, and the dock brought indoors if freezing is expected.
Stihl iMow 6 EVO

Not recorded for this robot.

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
Gardena Sileno Life 750 Verified 5 Aug 2026
Stihl iMow 6 EVO Provisional 1 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.