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Robovations
Robovations™
Robot Autonomy, Classified
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Comparison · 2 robots

Husqvarna Automower 420 iQ · Husqvarna Automower 440 iQ

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. Husqvarna Automower 420 iQ
  2. Husqvarna Automower 440 iQ

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
Husqvarna Automower 420 iQHusqvarna Automower 440 iQ
III
Conditional
Finishes familiar jobs on its own
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.

None of these robots carries a scored assessment yet, so there is nothing to plot here. The classification and evidence below still apply.

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.

Price92 with a published figure
  • Husqvarna Automower 420 iQ$3,299.99
  • Husqvarna Automower 440 iQ$4,299.99
$549median $1,999$5,999
Runtime104 with a published figure
  • Husqvarna Automower 420 iQ84 min
  • Husqvarna Automower 440 iQ138 min
30 minmedian 105 min240 min
Charge time105 with a published figure
  • Husqvarna Automower 420 iQ54 min
  • Husqvarna Automower 440 iQ54 min
30 minmedian 90 min300 min
Noise103 with a published figure
  • Husqvarna Automower 420 iQ62 dB
  • Husqvarna Automower 440 iQ62 dB
50 dBmedian 60 dB82 dB
Weight115 with a published figure
  • Husqvarna Automower 420 iQ38 lbs
  • Husqvarna Automower 440 iQ39 lbs
13 lbsmedian 30.2 lbs134 lbs
Height116 with a published figure
  • Husqvarna Automower 420 iQ11.1 in
  • Husqvarna Automower 440 iQ11.1 in
7.5 inmedian 11 in16.5 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.

Husqvarna Automower 420 iQ

One acre of rated capacity and a 54-minute typical charge, with no independent test yet of the 420 iQ itself.

Husqvarna rates 45% slopes inside the lawn, but only 15% at the boundary.

Husqvarna Automower 440 iQ

Two acres of rated capacity and about 138 minutes per charge, with no independent test yet of the 440 iQ itself.

Husqvarna rates 45% slopes inside the lawn, but only 15% at the boundary.

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.

Husqvarna Automower 420 iQ
Buyers who want independent test results first
Phandroid, Bob Vila, 9to5Toys and Mashable list the 420 iQ in roundups and deal posts; no hands-on test of it was found.
Irregular lawns close to an acre
Husqvarna rates its capacity on irregular lawns at half an acre, against 1 acre for open, systematic mowing.
Lawns with steep slopes along the edges
Husqvarna rates 45% slopes inside the installation but only 15% at the boundary.
Buyers who want camera-based obstacle detection
Husqvarna describes onboard radar paired with virtual boundaries; no camera is listed in its specifications.
Husqvarna Automower 440 iQ
Buyers who want independent test results first
Bob Vila and 9to5Toys list the 440 iQ in deal posts and a brand roundup; no hands-on test of it was found.
Irregular properties close to two acres
Husqvarna rates its capacity on irregular lawns at 1 acre, against 2 acres for open, systematic mowing.
Lawns with steep slopes along the edges
Husqvarna rates 45% slopes inside the installation but only 15% at the boundary.
Buyers who want camera-based obstacle detection
Husqvarna describes onboard radar paired with virtual boundaries; no camera is listed in its specifications.

What stays your job

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

Husqvarna Automower 420 iQ
  • As needed: Replace the three pivoting razor blades; Husqvarna includes a year of blades and 6 extras.
  • As needed: Hose-wash the body, which Husqvarna describes as hose-washable.
  • As needed: Adjust work areas, stay-out zones and transport paths in the Automower Connect app.
  • As needed: Install firmware over the air through the app.
  • Seasonally: Update schedules and cutting heights as grass growth changes.
Husqvarna Automower 440 iQ
  • As needed: Replace the three pivoting razor blades; Husqvarna includes a year of blades.
  • As needed: Hose off the exterior and underside, which Husqvarna describes as washable.
  • As needed: Adjust work areas, stay-out zones and transport paths in the Automower Connect app.
  • As needed: Install firmware over the air through the app.
  • Seasonally: Update schedules and cutting heights as grass growth changes.
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
Husqvarna Automower 420 iQ Pending 8 Sep 2026
Husqvarna Automower 440 iQ Pending 7 Sep 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.