Husqvarna Automower Models Compared: Lawn Size, Slope and Navigation

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Last reviewed: November 2026. Specs and prices checked on Husqvarna's US website on November 13, 2026. We have not tested these mowers: every figure below is what Husqvarna states.

Husqvarna sells four wire-free Automower iQ models for homes in the US, plus the wired 435X AWD. Choose by the lawn size Husqvarna gives for an irregular lawn and by your steepest slope. On an irregular lawn, Husqvarna rates the 410 iQ for 0.25 acre, the 420 iQ for 0.5 acre and the 440 iQ for 1 acre; all three handle slopes of up to 45%. For steeper yards, the 435 iQ AWD handles 70% slopes and is rated for 0.9 acre on an irregular lawn. On November 13, 2026, the 420 iQ ($3,299.99) and 435 iQ AWD ($4,999.99) were in stock on Husqvarna's store; the 410 iQ and 440 iQ were not.

The residential Automower models side by side

Husqvarna gives every model a "Lawn Size (±20%)" and, for the iQ models, two capacities: one for a systematic layout and a lower one for an irregular lawn with beds, trees and narrow passages. It also gives two slope figures: inside the lawn and at its boundary.

Model	Lawn size (systematic)	Irregular lawn	Max slope inside / at boundary	Boundary	Price, Nov 13, 2026
Automower 410 iQ	0.5 acre	0.25 acre	45% / 15%	Virtual or physical wire	$2,599.99, out of stock
Automower 420 iQ	1 acre	0.5 acre	45% / 15%	Virtual or physical wire	$3,299.99
Automower 440 iQ	2 acres	1 acre	45% / 15%	Virtual or physical wire	$4,299.99, out of stock
Automower 435 iQ AWD	1.3 acres	0.9 acre	70% / 50%	Virtual or physical wire	$4,999.99
Automower 435X AWD	0.9 acre	Not listed	70% / 50%	Physical wire only	$2,999.99 list price; the page points to dealers

A 45% slope rises 45 feet over 100 feet, about 24°; 70% is about 35°. The boundary figure matters if your lawn slopes down to its edge: the 410, 420 and 440 iQ are rated for 15% there, the AWD models for 50%.

→ Automower 420 iQ · Automower 435 iQ AWD · Automower 410 iQ

Run time, charging and cut

Model	Mow time per charge	Charging time	Cutting width	Cutting height	Noise	Weight
410 iQ	84 min	108 min	9.4 in	1 to 4 in	62 dB(A)	38 lb
420 iQ	84 min	54 min	9.4 in	1 to 4 in	62 dB(A)	38 lb
440 iQ	138 min	54 min	9.4 in	1 to 4 in	62 dB(A)	39 lb
435 iQ AWD	145 min	45 min	8.7 in	1.2 to 2.8 in	60 dB(A)	39.9 lb
435X AWD	145 min	45 min	8.7 in	1.2 to 2.8 in	60 dB(A)	39 lb

Two differences stand out. The 410 iQ mows as long per charge as the 420 iQ but takes twice as long to recharge. And the AWD models cut no higher than 2.8 inches, against 4 inches on the 410, 420 and 440 iQ, which matters if you keep your grass long. Husqvarna lists a maximum active time of 24 hours for each of these models.

What comes with an iQ model

• Navigation without a wire. Husqvarna describes its EPOS system this way: "Our Exact Positioning Operating System (EPOS®) uses patented technology, communicating with multiple satellites and the national cellular network to provide centimeter-accurate location data to your mower." The EPOS reference station is in the box. Husqvarna also offers "EPOS via Husqvarna Cloud now available in select locations," with a coverage check on each product page.
• App-guided setup. "Our user-friendly app guides you through the installation process as you drive the mower around your lawn to set virtual boundaries and create mowing areas or stay-out zones." Husqvarna also lists "Professional installation available."
• Blades. Six extra blades in the box, and Husqvarna says the iQ kits include "a year's worth of free replacement cutting blades."
• Warranty. Husqvarna lists a 4-year warranty for the iQ series in the US and Canada, and notes that "batteries are covered by a separate 3-year warranty."
• Not in the box: the loop wire, which Husqvarna lists as not included with the 410, 420 and 440 iQ. You need it only if you choose a physical boundary.

Each option has a requirement. With the reference station, Husqvarna says: "Reference station must have clear 135-degree view of sky in all upper directions." With Husqvarna Cloud there is no station, but the mower "requires a constant internet connection, either through a mobile network or wi-fi." If your lawn is under heavy tree cover, read how wire-free robot mowers navigate before you buy.

435 iQ AWD or 435X AWD?

Both are all-wheel-drive models for 70% slopes with the same mow time, charging time and cut. The difference is navigation and price. The 435 iQ AWD uses EPOS, with virtual or physical boundaries, and is rated for 1.3 acres (0.9 acre irregular) at $4,999.99. The 435X AWD uses a physical boundary wire only and is rated for 0.9 acre; Husqvarna says it is "Suited for medium sized lawns up to 0.9 acres" and lists it at $2,999.99, with the loop wire and stakes not included.

Which Automower fits your lawn

1. Measure the area you mow. One acre is 43,560 square feet.
2. Use the irregular-lawn figure if your lawn has flower beds, trees, several areas or narrow passages. On that basis: up to 0.25 acre, the 410 iQ; up to 0.5 acre, the 420 iQ; up to 1 acre, the 440 iQ.
3. Check your steepest slope, inside the lawn and at the edges. Over 45% inside, or over 15% at the boundary, points to an AWD model.
4. Decide on the boundary. If you'd rather not bury a wire, choose an iQ model and check that the reference station can see the sky. If you already have a wire or heavy shade, the 435X AWD is the cheaper AWD option.
5. Check stock. On November 13, 2026, the 410 iQ and 440 iQ were out of stock on Husqvarna's store.

Husqvarna's commercial models

Husqvarna's US site also lists Automower models for professional use, managed through its Husqvarna Fleet Services app and sold without a price on the product page: the 535 AWD EPOS (1 acre, 70% slopes), 560 EPOS (1.5 acres, 50%) and 580 EPOS (2 acres, 45%). For these, the EPOS reference station is listed as not included. The 580L EPOS is "Exclusive to Golf and Sports Turf dealers," and the CEORA, rated for 6 acres, lists at $32,829.94. For a home lawn, the residential models above are the relevant ones.

FAQ

Which Husqvarna Automower is best for 1 acre?

It depends on the lawn's shape. For an open, simple 1-acre lawn, Husqvarna rates the 420 iQ for 1 acre. For a 1-acre lawn with beds, trees or narrow passages, the 440 iQ is the iQ model it rates for 1 acre irregular. If the lawn is steep, the 435 iQ AWD is rated for 1.3 acres, or 0.9 acre irregular, on slopes of up to 70%.

Does the Husqvarna Automower iQ need a boundary wire?

No. Husqvarna lists "Physical wire, Virtual wire" as boundary types for the iQ models: they can run on virtual boundaries set in the app with EPOS, or on a wire if you prefer. The loop wire is not in the box.

What is the difference between the Automower 420 iQ and 440 iQ?

The 440 iQ is rated for twice the area (2 acres systematic, 1 acre irregular, against 1 and 0.5 acre) and mows 138 minutes per charge instead of 84. Slope ratings, cutting width and cutting height are the same. The 440 iQ lists at $4,299.99, against $3,299.99.

Sources

Husqvarna US: robotic lawn mowers, Automower 410 iQ, 420 iQ, 440 iQ, 435 iQ AWD, 435X AWD, 535 AWD EPOS, 560 EPOS, 580 EPOS, CEORA and EPOS.

Sources last checked November 13, 2026.

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