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Husqvarna

Husqvarna Automower 320 NERA

Virtual boundaries eliminate wire installation labor but shift the burden to base station placement discipline. Level III Conditional Autonomy applies to 0.3–0.8 acre open properties once EPOS setup is correct.

Husqvarna Automower 320 NERA
Price$2,999 list priceRetail price not tracked
FIT CHECK

Will the Husqvarna Automower 320 NERA work on your yard?

Describe your yard using the controls. Each choice reads the spec sheet for you, flagging where the Husqvarna Automower 320 NERA is built for your space and where it isn’t.

Yard size

Terrain

Grass type

Boundary setup

A classification of fit for the conditions you set, not a recommendation. Verdicts describe engineering design intent, not test results.

OWNERSHIP

Living with it.

No regression on firmware 3-5; primary issue is recalibration drift after signal loss.

Stableowner-reported arc

The record so far

95% successful docking under normal conditions. Firmware v4.1 had premature return triggers; fixed in v4.2. Field data 2019-2024 shows stable trajectory across versions.

What goes wrong4 documented · 2 self-recover
Occasional
EPOS recalibration failureMower cannot establish position lock
Self-recoversRelocate setup area or use manual input
Occasional
Mower traverses geofence after update
Owner fixRe-run setup calibration sequence
Occasional
Docking approach failureMower misses dock at incorrect angle
Self-recoversRetry when grass is dry
Occasional
Blade jam in thick grassBlade rotation locks mid-session
Owner fixManual debris removal required
Upkeep routine
Each useEvery cycle

Inspect cutting area for debris; verify successful dock engagement.

Weekly52×/yr

Clean dock and mower docking guides with a dry cloth.

Seasonal4×/yr

Replace the three pivoting razor as a set. Genuine Husqvarna long-life blades run about $5 to $8 for a set of three.

Check EPOS positioning through the app and re-survey the installation if coverage has drifted.

Before winter storage, clean the mower, charge the battery fully, and store it indoors in a dry place above freezing. Do not store the pack discharged.

Yearly1×/yr

Inspect wheel brushes and drive gears for wear.

As neededno fixed schedule

Clean the charging station and, where a reference station is installed, verify its sky view remains unobstructed.

Cost over timeabout $780 past the sticker over three years
PurchaseRunning cost
Year 1
$3,259
Year 3

$3,779
Year 5

$4,299

$2,999 to buy, then about $260 a year for the replaceable parts below. Over three years that is roughly $780 past the sticker price. Excludes electricity and any repairs.

What you replace

Replacement cadence from the maintenance schedule; prices shown where the source documents them. Part links may earn a commission and do not influence the classification. All parts at Husqvarna

Step-by-step fixes
Safety notes1 caution · 2 notes
  • No moving-target obstacle detectionRelies on owner perimeter clearance; collision risk with children or pets
  • CautionThermal operation limitsDisabled below 5C or above 40C; thermal throttling reduces runtime in heat
  • Cloud account compromiseShared credentials enable remote boundary relocation and schedule changes
SPECIFICATION

The full spec sheet.

Priced above the category median, with every figure charted against the category below.

29.5 in21.3 in11 inDimensional drawing
Key specificationsManufacturer-published
FootprintThe width, depth and height of the robot itself, without its dock.
21.3 × 29.5 in · 11 in tall✓
WeightThe robot alone, without its dock, as the maker states it.
29.1 lbs•
BatteryStored energy in watt-hours; a larger pack runs longer, not harder.
90 Wh · Li-ion
Wi-FiThe bands the robot can join; many models need a 2.4 GHz network to set up.
Supported✓
Cutting width
9.4 in•
Cutting height range
0.8-2.4 in•
Max area
35521 sq ft•
Max slope
50%•
Blade system
3 pivoting razor blades•
Mapping & navigation

Boundary wire as standard with systematic coverage routing; EPOS satellite positioning and virtual boundaries available through the separately purchased EPOS Plug-in kit

Where it lands · ranked across 133 robot lawn mowersThis robotMedianTypical range
RuntimeThe maker's stated running time on one charge, at a standard setting.135min
30 min240 min
Near median
PriceThe maker's list price, not a price found in a shop.$2,999

$549$5,999
Above median
NoiseLoudness at the maker's stated distance, in decibels; ten more decibels reads as about twice as loud.58dB

50 dB75 dB
Near median
Charge timeTime from empty to full on the dock, as the maker states it.75min

30 min300 min
Near median
WeightThe robot alone, without its dock, as the maker states it.29.1lbs

13 lbs88.2 lbs
Near median

Position shows where the figure sits across the tracked category, not a quality judgment.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon
Just launched
Active updates
Settled
Discontinued
  1. Sep 2026 · AssessmentAutonomy Ladder reclassified IV → III
  2. Aug 2026 · AssessmentRobovations Score rescored under v4.2: 76 → 71
  3. Aug 2026 · AssessmentRecord status: Verified → Provisional
  4. Jul 2026 · AssessmentRobovations Score recorded at 76 of 100
Common questions

What people actually ask.

7 answered
OperationDoes the 320 NERA require any buried boundary wire at all?
As specified, yes. Husqvarna lists the 320 NERA’s boundary method as physical wire. NERA means the mower is EPOS-compatible rather than EPOS-equipped: wire-free operation requires the Husqvarna EPOS Plug-in kit, a separate purchase that dealers sell as a distinct, higher-priced bundle. A 320 NERA bought without the plug-in is a wire-guided mower.
OperationHow accurate is EPOS positioning and does it drift over time?
Husqvarna describes EPOS as positioning the mower to within a few centimeters. Reception is affected by tree cover and by tall structures near the boundary. Owner reports describe stable behavior in open gardens with intermittent blocking under canopy; where coverage drifts, the installation is re-surveyed through the app.
OperationWhat happens when GNSS signal is lost during mowing?
Per owner reports on robotic lawn mower forums, the 320 NERA pauses operation and returns to dock when signal falls below threshold. Mowing does not continue in degraded mode. Operation resumes when signal restores and the next scheduled session begins.
OwnershipHow often must blades be replaced and what is the cost?
Husqvarna recommends blade replacement every 6 to 8 weeks during the active season, depending on area and grass type. The mower carries three pivoting razor blades, changed as a set rather than as a cartridge. Genuine Husqvarna long-life blades sell in nine-packs for about $15 to $23, so one set of three runs roughly $5 to $8 and a full season of changes comes to tens of dollars rather than hundreds.
OperationCan the 320 NERA handle steep slopes?
Husqvarna rates the 320 NERA to a maximum 50 percent slope inside the working area, about 27 degrees, and 25 percent at the boundary, about 14 degrees. The lower boundary figure is the one that constrains a garden with a banked perimeter. Traction falls off on wet grass near either limit.
OperationDoes the 320 NERA operate in the rain?
Yes. Husqvarna documents all-weather operation as a design characteristic. The unit can mow in light rain, providing consistent scheduling regardless of weather. The dock is also rated for outdoor exposure.
OperationWhat is required for base station setup and can I do it myself?
Wire-free operation needs the EPOS Plug-in kit. A separate EPOS reference station is only required where Wi-Fi does not reach across the whole garden, because the plug-in can take its correction signal over Wi-Fi. Where a station is used it needs a fixed mounting point with sky view and power. Most owners complete the installation themselves; dealer installation is available at additional cost.

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Reference the Husqvarna Automower 320 NERA classification.

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Robovations. "Husqvarna Automower 320 NERA: Autonomy Level III (Conditional Autonomy)." Autonomy Ladder™, assessed September 2026. https://robovations.com/robots/husqvarna-automower-320-nera/

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