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Robot Autonomy, Classified
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Comparison · 2 robots

EMO · Tertill Garden Weeding Robot

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

  1. EMO
  2. Tertill Garden Weeding Robot
Living.AI

EMO

Autonomy
IIAssisted Autonomy
Score
44/100 Limited
Readiness
Ready Now
Price
$279list

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
EMOTertill Garden Weeding Robot
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
  • EMO55
  • Tertill Garden Weeding Robot64
18median 72 across 429 scored robots100
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
  • EMO52
  • Tertill Garden Weeding Robot40
0median 70 across 417 scored robots100
Edge-case recovery10% of score
Does it recover from the failures its category presents
  • EMO44
  • Tertill Garden Weeding Robot25
18median 52 across 318 scored robots100
Operating envelope4% of score
How far conditions can vary before performance drops
  • EMO42
  • Tertill Garden Weeding Robot53
28median 68 across 393 scored robots100

Dependability

Field failure rate16% of score
Documented hardware failures per owner-year
  • EMO32
  • Tertill Garden Weeding Robot64
6median 70 across 355 scored robots100
Software stability14% of score
Whether updates fix more than they break
  • EMO35
  • Tertill Garden Weeding Robot33
15median 65 across 340 scored robots100
Support longevity10% of score
Committed parts, service and updates, with dates
  • EMO48
  • Tertill Garden Weeding Robot18
0median 62 across 425 scored robots100

Ownership burden

Routine maintenance12% of score
Hands-on time it asks for in normal operation
  • EMO35
  • Tertill Garden Weeding Robot91
22median 67 across 430 scored robots100
Consumables8% of score
Parts that must be bought to keep it working
  • EMO55
  • Tertill Garden Weeding Robot61
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.

Price29 with a published figure
  • EMO$279
  • Tertill Garden Weeding Robot$349
$29median $599.99$100,000
Runtime31 with a published figure
  • EMO120 min
  • Tertill Garden Weeding Robot420 min
30 minmedian 300 min960 min
Weight38 with a published figure
  • EMO0.5 lbs
  • Tertill Garden Weeding Robot2.4 lbs
0.1 lbsmedian 24.3 lbs2,646 lbs
Height35 with a published figure
  • EMO4.6 in
  • Tertill Garden Weeding Robot5 in
0.9 inmedian 21.8 in82 in

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

04 Ownership

What the numbers leave out.

The trade-off

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

EMO

Camera images are stated to stay on the robot by default, but voice-command interpretation still requires sending an audio clip to the manufacturer’s servers.

A small desktop footprint limits its physical reach, while also limiting the collision and fall risk that applies to full-room-roaming robots.

Tertill Garden Weeding Robot

The robot’s height rule is the only thing separating a weed from a crop: anything under about an inch gets the string trimmer. You gain passivity but forfeit the selective precision of hand-weeding, and low ornamentals are cut alongside the weeds.

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.

EMO
Buyers wanting whole-room or multi-room navigation
EMO operates within a single bounded desktop area and does not navigate a full room.
Households wanting a fully offline device
Voice-command interpretation requires an internet connection and a round trip to Living.AI's servers after the wake word is detected.
Buyers wanting explicit, detailed data-handling disclosure
Living.AI's published privacy notice is general rather than EMO-specific and does not clearly enumerate camera or voice data practices.
Tertill Garden Weeding Robot
Gardens with dense, established weeds
The string trimmer cuts plants under about an inch tall; anything taller is treated as a crop and left standing. Thick-rooted perennials such as dandelion and thistle regrow from the root regardless. Not a solution for overgrown beds.
Densely planted ornamental beds
Tertill cannot distinguish weeds from small ornamentals or intentional groundcover. Owners report accidental damage to low-growing plants sharing beds.
Owners needing precise control or fast results
The robot operates on a slow suppression schedule, not rapid cleanup. Owners seeking immediate weed elimination or seasonal maintenance prefer manual or chemical approaches.

What stays your job

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

EMO
  • Monthly: Wipe the four optical drop sensors under the base; edge detection at a desk edge depends on them staying clean.
  • Monthly: Wipe the LED face and camera window with a dry, soft cloth to keep the display and face tracking clear.
  • As needed: Apply software updates through the Living.AI companion app; the manufacturer publishes no update schedule.
  • As needed: Keep the magnetic Home Station powered and its contacts free of dust; EMO returns to it on its own at roughly 2 hours of active use per charge.
  • As needed: Keep the bounded desktop play area clear of clutter and liquids; EMO stays inside it using its time-of-flight and drop sensors.
Tertill Garden Weeding Robot
  • Weekly: Remove grass clumps and debris from the trimmer head and wheels.
  • Monthly: Inspect battery terminals for corrosion, clean if needed.
  • Seasonally: Store indoors over winter or through heavy rain, with the battery charged rather than left flat; check rubber seals before redeployment.
  • As needed: Replace the trimmer string. It is the wear part, and a robot that has stopped cutting has usually worn it through. Franklin lists a Whacker String Replacement Kit at $9.99, one of the few items still available after discontinuation.
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
EMO Verified 7 Sep 2026
Tertill Garden Weeding Robot Discontinued 4 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.