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List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.

A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.

Best suited for

What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.

  • Husqvarna Automower 305E NERA — residential: typical home lawns; 9-inch deck; battery (no fuel or engine maintenance)
  • Kress Kress RTKⁿ ¼-acre robotic lawn mower — residential: typical home lawns; 8-inch deck; battery (no fuel or engine maintenance)
What’s different? The 5 differences that matter most, from the published figures.
  1. Automower 305E NERA ships with a 2 Ah battery; Kress RTKⁿ ¼-acre robotic lawn mower ships with a 4 Ah battery, a 2 Ah difference. Amp-hours is stored energy at the pack's voltage. Run time also depends on load, so a bigger pack lasts longer under the same conditions, not a fixed time.
  2. Automower 305E NERA is rated for slopes to 30%; Kress RTKⁿ ¼-acre robotic lawn mower is rated for slopes to 40%, a 10 points difference. The slope rating is the maker's limit for safe operation, not a measure of performance.
  3. Automower 305E NERA is rated for 0.22 acres (900 m²) of lawn; Kress RTKⁿ ¼-acre robotic lawn mower is rated for 0.25 acres (1,012 m²) of lawn, a 0.03 acres difference. The rated lawn area is the maker's figure under its own test conditions. Obstacles, slopes and complex shapes reduce it.
  4. Automower 305E NERA has a 8.7 in (220 mm) deck; Kress RTKⁿ ¼-acre robotic lawn mower has a 7.9 in (200 mm) deck, a 0.8 in difference. Deck width sets how much grass each pass covers. Mowing time also depends on ground speed, turns and obstacles, so a wider deck alone does not fix the job's length. Time both decks on your own lawn ›
  5. Automower 305E NERA weighs 28 lbs (12.6 kg); Kress RTKⁿ ¼-acre robotic lawn mower weighs 26 lbs (12 kg), a 1 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Automower 305E NERA's weight means for a trailer ›
what isn’t comparable

Not comparable

  • Voltage: not published for Automower 305E NERA.
  • Run Time: not published for Kress RTKⁿ ¼-acre robotic lawn mower.
  • Charge Time: not published for Kress RTKⁿ ¼-acre robotic lawn mower.
  • Blades: not published for Automower 305E NERA.
  • Fuel Type: not published for Automower 305E NERA.
  • Cut height range: not published for Automower 305E NERA.
  • Price: Automower 305E NERA is dealer quote only.

Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.

Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.

Add another (2 more fit): every robotic mower · more Husqvarna · more Kress
Side-by-side specifications: Husqvarna Automower 305E NERA vs Kress Kress RTKⁿ ¼-acre robotic lawn mower
Spec Automower 305E NERA
Husqvarna · Robotic
Kress RTKⁿ ¼-acre robotic lawn mower
Kress · Robotic
List price dealer quote$1,051
Engine
Power Source battery battery
Fuel Type — Li-Ion
Electrical
Voltage — 20 V
Battery Capacity 2 Ah 4 Ah
Deck
Cutting Width 8.7 in (220 mm) 7.9 in (200 mm)
Min Cut Height — 1.6 in (40 mm)
Max Cut Height — 3.5 in (90 mm)
Blades — 3
Dimensions
Weight 28 lbs (12.6 kg) 26 lbs (12 kg)
Width 17.3 in (440 mm) —
Length 26.8 in (680 mm) —
Height 11 in (280 mm) —
Robotic
Work Area 900 ft2 1012 ft2
Max Slope 30 pct 40 pct
Boundary Virtual wire, Physical wire —
Run Time 50 min —
Charge Time 40 min —
Noise Level 60 db 59 db
Rain Sensor — Yes
Theft Protection No Yes

Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.

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