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Robot Autonomy, Classified
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ROBOVATIONS/CLASSIFICATION RECORD/ROBOT LAWN MOWERSRELEASED 2023.03REASSESSED 2026.05.16
Husqvarna

Husqvarna Automower 320 NERA

Virtual boundaries eliminate wire installation labor but shift the burden to base station placement discipline. L4 autonomy is genuine for 0.3–0.8 acre open properties once EPOS setup is correct.

Husqvarna Automower 320 NERA
LIST PRICE$2,999MSRP
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.

SPECIFICATION

The full spec sheet.

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

21.3 in29.5 inTOP10.6 in29.5 inSIDEDimensional drawing
Key specificationsManufacturer-published
Footprint
21.3 × 29.5 in · 10.6 in tall✓
Weight
28.2 lbs✓
Battery
90 Wh · Li-ion
Wi-Fi
Supported✓
Mapping & navigation

EPOS dual-band GNSS with fixed base station, virtual boundary enforcement, systematic coverage routing

Where it lands · ranked across 82 robot lawn mowersThis robotMedianTypical range
Runtime135min
50 min240 min
Near median
Price$2,999
$451$32,829
Bottom of range
Noise58dB
50 dB82 dB
Near median
Charge time75min
40 min300 min
Near median
Weight28.2lbs
11.9 lbs160 lbs
Near median

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

Official referencesOwner manualManufacturer support
OWNERSHIP

Living with it.

Consistent performance on firmware 3-5; primary issue is recalibration drift after signal loss.

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.

Owner effort~28 minhands-on per month
Consumables$260replaceable parts / yr
Reliability trend Stableowner-reported arc
What goes wrong · 4 documented · 2 self-recover
Occasional
EPOS recalibration failureMower cannot establish position lock
Self-recoversRelocate setup area or use manual input
Occasional
Boundary wire crossingMower 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 contacts and mower docking guides with dry cloth.
Seasonal4×/yr
Recalibrate EPOS positioning via app to maintain meter-level accuracy. · Store indoors in freezing climates. Drain battery and recharge before spring deployment.
Yearly1×/yr
Replace wheel brushes and inspect drive gears for wear. Approximately $120–180 for parts.
As neededno fixed schedule
Replace blade cartridge. Cost $45–65 per set. · Clean charging station and verify base station sky view remains unobstructed.
Cost over time · past the sticker
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
  • BladesEvery 6–8 weeks$45–65
  • BrushAnnually$120–180

Replacement cadence from the maintenance schedule; prices shown where the source documents them.

Safety notes

NoteNo moving-target obstacle detection: Relies on owner perimeter clearance; collision risk with children or pets

CautionThermal operation limits: Disabled below 5C or above 40C; thermal throttling reduces runtime in heat

NoteCloud account compromise: Shared credentials enable remote boundary relocation and schedule changes

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon
Just launched
Active updates
Settled
Discontinued
  1. Mar 2024 · UpdateFirmware v4.2 corrects premature dock-return triggering in 320 NERA
  2. Aug 2024 · News320 NERA obstacle-detection gap draws safety scrutiny in owner communities
  3. Jul 2026 · AssessmentRobovations Score recorded at 70 of 100
  4. Jul 2026 · AssessmentRobovations Score revised 70 → 76
Editorial comparisons

How Husqvarna Automower 320 NERA compares.

All comparisons →
Husqvarna Automower 320 NERA
Husqvarna Automower 430XH
Segway Navimow i Series
Worx Landroid M 20V
Goal-based

Quiet robot mowers for neighborhood-friendly scheduling: noise levels and timing

Husqvarna Automower 320 NERA + 3 more
Read comparison
Husqvarna Automower 320 NERA
Husqvarna Automower 430XH
Segway Navimow i Series
Worx Landroid M 20V
Goal-based

Robot mowers for quarter-to-half-acre yards: where setup effort matches yard scale

Husqvarna Automower 320 NERA + 3 more
Read comparison
Mammotion LUBA 3 AWD 5000
Husqvarna Automower 450X NERA
Husqvarna Automower 320 NERA
Worx Landroid M 20V
Goal-based

Which robot mower handles sloped yards? Drivetrain and traction tradeoffs.

Mammotion LUBA 3 AWD 5000 + 3 more
Read comparison
Common questions

What people actually ask.

7 answered
OperationDoes the 320 NERA require any buried boundary wire at all?
No. EPOS uses a fixed base station and onboard GNSS receiver for virtual boundary enforcement entirely in software. Manufacturer documentation confirms no guide or boundary wire is used. Power cable to dock is the only required infrastructure.
OperationHow accurate is EPOS positioning and does it drift over time?
Husqvarna specifies sub-centimeter accuracy under clear sky conditions. Owner reports indicate minimal drift in open environments but periodic signal blocking occurs under tree cover. Seasonal base station recalibration is documented in maintenance guidelines to restore accuracy.
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 6–8 weeks during active season depending on area and grass type. Replacement blade cartridges retail for approximately $45–65 per set depending on region, adding $200–300 annually on large properties.
OperationCan the 320 NERA handle steep slopes?
Manufacturer specification rates the 320 NERA to 35 percent gradient (approximately 19 degrees). This exceeds typical wire-guided models rated 25–30 percent. Owner reports confirm reliable operation on moderate slopes within spec, with occasional wheel slip on wet gradients near maximum.
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?
Base station placement requires a clear view of the sky, power proximity, and EPOS calibration via the app. The process is more technical than wire staking but documentation is clear. Most owners complete DIY setup; professional installation is available through dealers for additional cost.

Analysis

Husqvarna Automower 320 NERA in the analysis archive.

More in this category

Other robot lawn mowers we have classified.

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Verified$4,999
71/100Capable
Ecovacs Goat GX-600IV
Robot Lawn Mowers

Ecovacs Goat GX-600

Compact wire-free yards under half acre; flat terrain; owner accepts RTK setup.
Verified$1,299
74/100Capable
Bosch Indego M+ 700IV
Robot Lawn Mowers

Bosch Indego M+ 700

Large open-sky properties, hands-off scheduling, no boundary-wire preference.
Discontinued$999
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Lymow One PlusIV
Robot Lawn Mowers

Lymow One Plus

Wire-free yards under ½ acre, gentle slopes, standard grass, camera-comfortable owners
Provisional$3,199
70/100Capable
Cite / Embed

Reference the Husqvarna Automower 320 NERA classification.

Embed the Autonomy Ladder™ mark or copy the citation. The mark links back to this assessment and updates if the classification changes.

RobovationsAutonomy Ladder™Level IVEnvironmental AutonomyIndependent classification
Citation
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By RobovationsUpdated: Jun 19, 2026
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