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Editor's Choice

Husqvarna Automower iQ Series 420 iQ

6.9/10 6.9/10 overall

Husqvarna's wire-free flagship: an acre, 45% slopes, and the industry's longest track record.

Premium

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Coverage
1 acre
Max slope
45 %
Navigation
EPOS satellite (Exact Positioning)
Boundary
Wire-free (app mapping)
Runtime
Noise
How to read these numbers. Every specification here was taken from the product's own Amazon page on 2026-08-21 and normalised into the same units. A dash means the manufacturer does not publish that figure — we never estimate one to fill a table. We do not republish prices at all: Amazon changes them daily, so each mower shows the bracket we place it in and you tap through for the live figure.

Not published by the manufacturer on this listing: runtime, charge time, noise, cutting height range. Those rows show a dash rather than a guess.

Our verdict

The most expensive mower in this catalogue that is not a specialist machine, and the one with the deepest engineering history behind it. EPOS gives virtual zones you can redraw in the app in seconds.

Score breakdown

Scored on the same six criteria as every other model on this site.

Cut Quality6.6
Navigation5.5
Slopes6.4
Setup Ease8.2
App & Smarts9.5
Value5.3

Shape of the scores

A balanced hexagon means an all-rounder; a spike means a specialist.

In depth

Husqvarna has been building robotic mowers longer than anyone, and the iQ series is where that shows: EPOS satellite navigation with no perimeter wire, virtual boundaries you redraw from the phone, a 45% gradient rating, and a dealer network that exists when something breaks. At 60 lbs it is the heaviest conventional robot mower here, which is part of why it holds a slope.

What works

  • 45% gradient with no perimeter wire
  • Virtual zones redrawn in the app, not dug up
  • Cellular connection and GPS tracking built in
  • The longest engineering and service history in the category

What doesn't

  • The most expensive general-purpose mower here
  • Heaviest at 60 lbs
  • 9.4-inch deck is modest for an acre
  • Thin ownership record on this listing

Buy it if

A large, sloped, complex lawn where reliability and long-term support matter more than price.

Look elsewhere if

Anyone shopping on price — several mowers here cover the same ground for half as much.

Full specification

Max coverage43,560 sq ft
Max slope45 %
NavigationEPOS satellite (Exact Positioning)
Boundary setupWire-free (app mapping)
Cutting width9.4 in
Cutting height
Runtime
Charge time
Noise
Zones
Weight60.0 lbs
Weather rating
Warranty
Blade systemPivoting razor blades
Battery
ConnectivityWi-Fi, Bluetooth, Cellular

Features

  • Rain sensor
  • Lift & tilt sensors
  • Obstacle avoidance
  • GPS tracking
  • PIN / anti-theft
  • App control
  • Auto scheduling
  • Edge cutting mode
  • Multi-zone support
  • Alexa / Google

Where to buy

Premium

We do not republish Amazon prices, because they change and a stale number helps nobody. Tap through for what it costs right now.

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Common questions

Will it handle my lawn size?

This model is rated to 1 acre. Manufacturer coverage figures assume dry grass, daily mowing and a reasonably open shape — take off roughly 15% for a lawn with trees, narrow passages or a wet climate.

How steep a slope can it manage?

Rated to 45% — about 24 degrees. That figure is for dry grass. If your steepest bank is close to this number, treat the model as out of range rather than borderline.

What does setup involve?

Boundary type: Wire-free (app mapping). No perimeter wire. The lawn is mapped from the app, which typically takes an afternoon including placing the antenna.

How often do the blades need replacing?

Roughly every four to six weeks of daily mowing. Dull blades tear grass instead of cutting it, which is the usual cause of brown tips. Replacement blades for this model cost a few dollars a set.

Replacement blades and mounts for this model are on our accessories page.

Alternatives

Closest models by score

6.9/10 6.9/10

ECOVACS Goat A2000 LiDAR PRO

Half an acre of dual-LiDAR coverage with a 32V platform built for thick American grass.

Coverage
0.5 acre
Max slope
Boundary
Wire-free (no antenna)
Noise
Mid-range

We do not republish Amazon prices, because they change and a stale number helps nobody. Tap through for what it costs right now.

Read the caveat
7.0/10 7.0/10

WORX Landroid Vision Cloud WR340, 1 Acre

A full acre of wire-free coverage with cut-to-zero edging — and the lowest owner rating here.

Coverage
1 acre
Max slope
30 %
Boundary
Wire-free (app mapping)
Noise
Mid-range

We do not republish Amazon prices, because they change and a stale number helps nobody. Tap through for what it costs right now.

Best Budget Pick
7.1/10 7.1/10

Segway Navimow i105N

The cheapest way into wire-free satellite mowing, for lawns up to an eighth of an acre.

Coverage
5,445 sq ft
Max slope
Boundary
Wire-free (app mapping)
Noise
58 dB
Entry level

We do not republish Amazon prices, because they change and a stale number helps nobody. Tap through for what it costs right now.