Quick Answer: The Husqvarna Automower 420 iQ is a wire-free robot mower rated by Husqvarna for 0.5 to 1 acre of lawn and slopes up to 45%, using satellite-based EPOS navigation instead of a buried boundary wire. It lists for $3,299.99 at Husqvarna US (October 30, 2026), though Husqvarna shows it out of stock online. It effectively replaces the Automower 430X, which Husqvarna’s own product page now marks “Discontinued” — the 420 iQ covers the same rough acreage but trades the wire install for a virtual, app-drawn boundary and costs about $800 more. Its only hardware difference from the $2,599.99 410 iQ is a faster charger (54 vs 108 minutes). Buy it if you want Husqvarna’s reliability and dealer network without digging a trench; buy a cheaper wire-free rival like the $1,599 Segway Navimow i215 LiDAR if EPOS’s premium doesn’t fit your budget.
Husqvarna’s entire boundary-wire X-line — the 415X, 430X and 450X that anchored this site’s earlier Automower coverage — is now discontinued in the US. In its place sits the iQ series: the 410 iQ, 420 iQ and 440 iQ, plus AWD variants the 435 iQ AWD and 435X AWD. The 420 iQ is the middle model, and for most half-acre-to-acre suburban lawns it’s the one that matters. Here’s what changed, what it costs, and whether the wire-free upgrade is worth the extra money.
Last updated October 30, 2026: Husqvarna US now lists the 420 iQ at $3,299.99 (down from $3,499.99) and shows it out of stock online; the 440 iQ is out of stock too. The 410 iQ is in stock at $2,599.99, and a line-by-line comparison of Husqvarna’s spec sheets shows it is the same 38 lb, 5 Ah, 84-minute mower with a slower 2.2 A charger (see the size section below). Earlier in 2026, retailers discounted the 420 iQ to $2,599.99 during promotions (per 9to5Toys, March 2026). This update also corrects the reference-station description, replaces the delisted Navimow i110N and Luba 2 AWD comparisons, and removes an unverified battery-warranty claim.
Husqvarna Automower 420 iQ at a glance
| Model | Navigation | Rated coverage | Max slope | Noise | Price |
|---|---|---|---|---|---|
| Automower 410 iQ | Wire-free EPOS | 0.25-0.5 acre | 45% | 62 dB(A) | $2,599.99 |
| Automower 420 iQ | Wire-free EPOS | 0.5-1 acre | 45% | 62 dB(A) | $3,299.99 (out of stock) |
| Automower 440 iQ | Wire-free EPOS | 1-2 acres | 45% | 62 dB(A) | $4,299.99 (out of stock) |
| Automower 435X AWD | Boundary wire + AWD | 0.9 acre | 70% (35°) | 60 dB(A) | $2,999.99 |
| Segway Navimow i215 LiDAR | Wire-free LiDAR + vision | 0.37 acre | 45% (24°) | 59 dB(A) | $1,599 |
Husqvarna Automower 420 iQ — the wire-free heir to the 430X
Husqvarna Automower 420 iQ
- Rated for about 0.5 acre on complex lawns and up to 1 acre on open, systematic layouts, per Husqvarna.
- EPOS satellite positioning draws the boundary virtually through the Automower Connect app — no perimeter wire to bury.
- 45% max slope inside the mowing area (15% right at the boundary edge).
- 5 Ah battery delivers about 84 minutes of mowing per charge with a 54-minute recharge at 4.2 A, twice the 410 iQ's charging current.
- 4-year warranty (US and Canada), with a year of free replacement blades included.
- 62 dB(A) operating noise — a few decibels above the old X-line but still quiet enough for daytime runs.
- Radar-assisted object detection and GPS anti-theft tracking with PIN-code protection.
What actually changed from the 430X
The 430X and 420 iQ cover roughly the same ground — call it 0.7 to 0.8 acre in practice — and share Husqvarna’s build quality, dealer network, and Automower Connect app. The real difference is how the boundary gets set. The 430X needed a buried or pegged wire loop around the entire lawn, plus every bed, tree ring, and pond you wanted excluded; the 420 iQ’s EPOS system uses satellite positioning corrected either by the EPOS reference station that ships in the box or, in select locations, by Husqvarna Cloud network corrections, so you draw those same boundaries in the app instead.
That’s a genuine convenience win, but it isn’t free: at $3,299.99 list, the 420 iQ costs about $800 more than the 430X’s old ~$2,499 street price. According to Robot Mower Lab’s review of the iQ series, buyers are “investing in an ecosystem that just works” rather than in raw spec-sheet gains — the iQ series doesn’t cut faster or cover more per dollar than the X-line did, it just removes the trench.
Husqvarna Automower 420 iQ by the numbers
- 0.5 to 1 acre rated coverage: Husqvarna rates the 420 iQ for roughly half an acre on complex, obstacle-heavy lawns and up to a full acre on open, regularly-shaped ones — a ±20% variance the company builds into every iQ-series rating.
- 45% maximum slope: Per Husqvarna’s spec sheet, the 420 iQ handles grades up to 45% inside the mowing area, matching the old 430X but well under the 70% Husqvarna rates its 435X AWD for, or the 80% Mammotion claims for the Luba 3 AWD.
- 62 dB(A) operating noise: A few decibels above the X-line’s 58-59 dB(A), per Husqvarna’s published specs — still quiet enough for daytime mowing without disturbing a household or neighbors.
- 4-year warranty: Husqvarna backs the iQ series with a 4-year warranty in the US and Canada plus a year of free replacement blades, longer than the up-to-3-year mower warranty Navimow advertises.
- $3,299.99 list price (out of stock online, October 30, 2026): About $800 above the discontinued 430X’s old street price and $1,700 more than the wire-free Segway Navimow i215 LiDAR ($1,599, 0.37 acre). The premium buys Husqvarna’s EPOS ecosystem, dealer support and warranty length rather than more lawn coverage.
- 4.2 A vs 2.2 A: the charging current on the 420 iQ and 410 iQ spec sheets. It is the only published hardware difference between the two mowers, and it halves the recharge from 108 to 54 minutes.
420 iQ vs 410 iQ vs 440 iQ — which size?
The iQ series scales the same way the old X-line did: pick by lawn size, not by feature. The 410 iQ covers 0.25-0.5 acre for $2,599.99, the 420 iQ covers 0.5-1 acre for $3,299.99, and the 440 iQ covers 1-2 acres for $4,299.99 with a larger 7.5 Ah battery (138 minutes per charge). All three share EPOS wire-free navigation, 62 dB(A), radar object detection and the 4-year warranty.
The 410 iQ and 420 iQ are closer than the names suggest. Husqvarna’s US spec sheets for the two are identical (38 lb, 5 Ah, 84 minutes per charge, 9.4 in cut, 45% slope) except for one line: the 420 iQ charges at 4.2 A in 54 minutes, the 410 iQ at 2.2 A in 108 minutes. By our math that gives the 420 iQ about 14.6 hours of mowing in a 24-hour window against about 10.5 hours for the 410 iQ. Our Husqvarna Automower 410 iQ review works through whether the $700 gap is worth it for your lawn. If your yard runs closer to a full acre, the extra $1,000 for the 440 iQ over the 420 iQ is cheaper than replacing an undersized mower in two seasons. See our best Husqvarna Automower guide for how the whole current lineup, including the AWD models, stacks up.
420 iQ vs the wire-free RTK crowd
The 420 iQ’s move to wire-free navigation puts it in direct competition with mowers that were already wire-free, and here the price gap is stark. The Segway Navimow i215 LiDAR covers 0.37 acre for $1,599, under half the 420 iQ’s price for a smaller lawn, and it navigates without satellites at all. The Mammotion Luba 3 AWD starts at $2,399, undercuts it on a per-acre basis too, and adds the all-wheel drive the 420 iQ doesn’t have. (Navimow’s US store no longer lists the older i110N, and Mammotion’s US store has delisted the Luba 2 AWD.)
What the 420 iQ still offers that those rivals don’t: three decades of Husqvarna field history, a nationwide dealer network for service and warranty claims, and a 4-year warranty that’s longer than most competitors publish. If brand reliability and dealer support matter more than price-per-acre to you, the premium is defensible; if not, a Navimow or Luba covers the same ground for meaningfully less. Our Navimow vs Husqvarna comparison goes deeper on that trade-off.
Who should buy the 420 iQ (and who shouldn’t)
Buy the 420 iQ if you have a half-acre to one-acre lawn, want Husqvarna’s dealer network and warranty length, and prefer a wire-free install without giving up boundary-wire-grade reliability entirely (EPOS still supports an optional physical wire for tricky zones).
Skip it if your lawn is under a quarter acre of complex layout or half an acre of open grass (the 410 iQ is the same mower with a slower charger for $700 less), if you need real slope capability beyond 45% (step up to the 435X AWD or a Mammotion Luba 3 AWD), or if price-per-acre is your priority — our best budget robot lawn mower roundup covers wire-free options for less.
The bottom line
The Husqvarna Automower 420 iQ is the direct, wire-free heir to the discontinued 430X: 0.5-to-1-acre coverage, a 45% slope rating, 62 dB(A) operation, and Husqvarna’s 4-year warranty and dealer network, for $3,299.99 list (out of stock at Husqvarna US on October 30, 2026). That’s about $800 more than the old X-line model it replaces, but it also removes the one job nobody enjoyed: digging a trench around the whole lawn. For every current Husqvarna model side by side, see our best Husqvarna Automower guide, or start from our best robot lawn mower pillar for the full cross-brand ranking. Cross-shopping a dealer-installed rival? See our STIHL iMOW vs Husqvarna Automower comparison.