Husqvarna Automower 420 iQ
Robot mower: the maker’s published limits, with the page each was read from. Robot mowers are judged against your house on the guides below.
Product links on this page will be affiliate links when the site goes live; they do not change which units are picked. How that works.
Amazon listing verified as the bare unit at $1,851 on September 17, 2026; the link goes live with the site.
The limits the maker publishes
Every figure below was read from the maker’s page or manual, and the link beside it goes there. A limit the maker does not publish is absent, never guessed.
| Limit | Maker figure | Read from |
|---|---|---|
| Lawn, up to | 43,560 sq ft | source |
| Slope, up to | 45% | source |
| Navigation | RTK | source |
| Cut width | 9.4 in | source |
| Zones | yes | source |
| Warranty | 4 years | source |
| Runtime | 84 min | source |
| Charge time | 54 min | source |
| Cut height, from | 1 in | source |
| Cut height, to | 4 in | source |
| Anti-theft | yes | source |
| Rain sensor | yes | source |
| Noise | 62 dB | source |
| Obstacles | ultrasonic | source |
| Boundary wire in the box | no | source |
Recall screen: no published CPSC recall names this exact model (screened 2026-09-17) (how we screen).
Living with it
What the maker’s own pages and manual say about owning this unit, and what owners report in public. Each line links to where it was read.
- Consumables
- Husqvarna recommends replacing the Automower's cutting blades roughly every two months for the best mowing results and lowest energy use.husqvarna.com
- Subscription
- Automower Connect's cellular data connectivity comes with a 10-year contract already built in, so owners are not charged an ongoing subscription fee to use the connected app.husqvarna.com
- Set-up
- Setting up the 420 iQ's EPOS navigation requires placing the charging station's docking point where it has an unimpeded view of the sky, since Husqvarna says weak satellite coverage there will not be compensated for.husqvarna.com
- Noise
- Husqvarna lists the Automower 420 iQ's perceived sound level at 62 dB(A).husqvarna.com
- Warranty
- Husqvarna backs the Automower 420 iQ with a 4-Year Warranty and says it is guaranteed to perform season after season and year after year.husqvarna.com
- Off-season storage
- Husqvarna advises storing the robotic mower and its charging station indoors somewhere dry and above freezing temperature over winter.husqvarna.com
- Safety
- The 420 iQ includes an anti-theft alarm, and if the mower is taken, owners can instantly track its location by GPS.husqvarna.com
- Camera and data
- Husqvarna's privacy policy states that the company does not sell or share the precise geolocation data collected from connected products such as the Automower.husqvarna.com
What independent testers found
We do not test units ourselves. These are figures and verdicts published by named testers, with the maker’s claim beside them where the tester gave it; where a tester relays owners’ reports rather than a measurement, the row says so.
| What | Finding | Tester |
|---|---|---|
| Runtime | 84 minutes of mowing per charge with a 54-minute recharge | MowerBotLab |
| Noise | 62 dB(A) operating noise (maker: Husqvarna states 62 dB(A) on the maker's spec page) | MowerBotLab |
| Slope handled | 45% max slope inside the mowing area, but only 15% right at the boundary edge | MowerBotLab |
| Also noted | Reviewer rates real-world coverage at about 0.5 acre on complex lawns, rising to 1 acre on open, simple layouts | MowerBotLab |
- Bob Vila names the Husqvarna Automower 420iQ one of its picks in a roundup of the best robotic mower brands, pointing to Husqvarna's long track record as a yard-equipment maker. Bob Vila (Timothy Dale)
- MowerBotLab recommends the 420 iQ for buyers who want Husqvarna's reliability and dealer network without trenching a wire, but steers budget-conscious shoppers to a cheaper wire-free rival instead. MowerBotLab
Judged in
- The best robot lawn mower for a half acre with no perimeter wire (The longest warranty of the three picks, plus a tester's edge-slope finding)