Compare Mowers
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 420 iQ — residential: typical home lawns; 9-inch deck; battery (no fuel or engine maintenance)
- Husqvarna Automower 305 — residential: typical home lawns; 9-inch deck; battery (no fuel or engine maintenance)
What’s different? The 5 differences that matter most, from the published figures.
- Automower 420 iQ is rated for 1.00 acres (4,047 m²) of lawn; Automower 305 is rated for 0.15 acres (600 m²) of lawn, a 0.85 acres difference. The rated lawn area is the maker's figure under its own test conditions. Obstacles, slopes and complex shapes reduce it.
- Automower 420 iQ weighs 38 lbs (17.2 kg); Automower 305 weighs 21 lbs (9.4 kg), a 17 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Automower 420 iQ's weight means for a trailer ›
- Automower 420 iQ ships with a 5 Ah battery; Automower 305 ships with a 2.1 Ah battery, a 2.9 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.
- Automower 420 iQ runs 84 min per charge; Automower 305 runs 60 min per charge, a 24 min difference. Stated run time is under the maker's conditions. Thick or wet grass shortens it.
- Automower 420 iQ has a 9.4 in (239 mm) deck; Automower 305 has a 8.7 in (220 mm) deck, a 0.7 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 ›
3 more differences, what isn’t comparable
Other verified differences
- Automower 420 iQ is rated for slopes to 45%; Automower 305 is rated for slopes to 40%, a 5 points difference.
- Automower 420 iQ charges in 54 min; Automower 305 charges in 60 min, a 6 min difference.
- Automower 420 iQ is rated at 62 dB; Automower 305 is rated at 59 dB, a 3 dB difference.
Not comparable
- Cut height range: not published for Automower 305.
- Price: Automower 305 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.
| Spec | Automower 420 iQ Husqvarna · Robotic |
Automower 305 Husqvarna · Robotic |
|---|---|---|
| List price | $3,300 | dealer quote |
| Engine | ||
| Power Source | battery | battery |
| Electrical | ||
| Battery Capacity | 5 Ah | 2.1 Ah |
| Deck | ||
| Cutting Width | 9.4 in (239 mm) | 8.7 in (220 mm) |
| Min Cut Height | 1 in (25 mm) | — |
| Max Cut Height | 4 in (102 mm) | — |
| Dimensions | ||
| Weight | 38 lbs (17.2 kg) | 21 lbs (9.4 kg) |
| Width | 21.4 in (544 mm) | 16.9 in (430 mm) |
| Length | 29.6 in (752 mm) | 22.4 in (570 mm) |
| Height | 11.1 in (282 mm) | 9.8 in (250 mm) |
| Robotic | ||
| Work Area | 4047 ft2 | 600 ft2 |
| Max Slope | 45 pct | 40 pct |
| Boundary | Physical wire, Virtual wire | Physical wire |
| Run Time | 84 min | 60 min |
| Charge Time | 54 min | 60 min |
| Noise Level | 62 db | 59 db |
| Theft Protection | Yes | No |
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.