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.
- Gardena smart SILENO city, 500 m² — residential: typical home lawns; 6-inch deck
- 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.
- smart SILENO city, 500 m² has a 6.3 in (160 mm) deck; Automower 305 has a 8.7 in (220 mm) deck, a 2.4 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 ›
- smart SILENO city, 500 m² weighs 16 lbs (7.3 kg); Automower 305 weighs 21 lbs (9.4 kg), a 5 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What smart SILENO city, 500 m²'s weight means for a trailer ›
- smart SILENO city, 500 m² is rated for 0.12 acres (500 m²) of lawn; Automower 305 is rated for 0.15 acres (600 m²) of lawn, a 0.02 acres difference. The rated lawn area is the maker's figure under its own test conditions. Obstacles, slopes and complex shapes reduce it.
- smart SILENO city, 500 m² is rated for slopes to 35%; Automower 305 is rated for slopes to 40%, a 5 points difference. The slope rating is the maker's limit for safe operation, not a measure of performance.
- smart SILENO city, 500 m² runs 65 min per charge; Automower 305 runs 60 min per charge, a 5 min difference. Stated run time is under the maker's conditions. Thick or wet grass shortens it.
1 more difference, what isn’t comparable
Other verified differences
- smart SILENO city, 500 m² is rated at 57 dB; Automower 305 is rated at 59 dB, a 2 dB difference.
Not comparable
- Battery Capacity: not published for smart SILENO city, 500 m².
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 | smart SILENO city, 500 m² Gardena · Robotic |
Automower 305 Husqvarna · Robotic |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | — | battery |
| Electrical | ||
| Battery Capacity | — | 2.1 Ah |
| Deck | ||
| Cutting Width | 6.3 in (160 mm) | 8.7 in (220 mm) |
| Dimensions | ||
| Weight | 16 lbs (7.3 kg) | 21 lbs (9.4 kg) |
| Width | 15 in (380 mm) | 16.9 in (430 mm) |
| Length | 21.7 in (550 mm) | 22.4 in (570 mm) |
| Height | 9.1 in (230 mm) | 9.8 in (250 mm) |
| Robotic | ||
| Work Area | 500 ft2 | 600 ft2 |
| Max Slope | 35 pct | 40 pct |
| Boundary | Physical wire | Physical wire |
| Run Time | 65 min | 60 min |
| Charge Time | 60 min | 60 min |
| Noise Level | 57 db | 59 db |
| Theft Protection | — | No |
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.