Segway Navimow X430
1 acre84% slope
$2,499
Rated for exactly one acre in the US with an 84% slope rating, for $2,499. If your lawn is close to a full acre, consider the X450 for headroom.
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Best robot lawn mower for 1 acre
Robot mowers rated for a full acre or more, compared on slope, navigation and price. Only 7 of the 19 mowers we cover reach one acre.
Segway Navimow X450
1.5 acres84% slope
$2,999
1.5 acres and the same 84% slope rating. Worth the extra $500 if your acre is complex or growth is fast.
Dreame A3 AWD Pro
1.24 acres80% slope
$2,599.99
The 5,000 m² variant covers 1.2 acres with LiDAR and no RTK, useful when trees line the lawn.
Every mower rated for 1 acre or more
| Model | Max area | Max slope | Navigation | Cutting width | Price seen |
|---|---|---|---|---|---|
| Segway Navimow X430 | 1 acre | 84% (40°) | RTK + Vision | 16.9 in (430 mm) | $2,499 |
| Dreame A3 AWD Pro | 1.24 acres | 80% (38.7°) | LiDAR + Vision | 15.8 in (40 cm) | $2,599.99 |
| Segway Navimow X450 | 1.5 acres | 84% (40°) | RTK + Vision | 16.9 in (430 mm) | $2,999 |
| WORX Landroid Vision Cloud 4WD (1 acre) | 1 acre | 84% (40°) | RTK + Vision | 8.7 in | $2,999.99 |
| Husqvarna Automower 420 iQ | 1 acre | 45% (24.2°) | RTK | 9.4 in | $3,299.99 |
| Husqvarna Automower 440 iQ | 2 acres | 45% (24.2°) | RTK | 9.4 in | $4,299.99 |
| Segway Navimow X390 | 2.5 acres | 51% (27°) | RTK + Vision | Not listed | $4,499 |
Is one acre really one acre?
An acre is 43,560 sq ft (about 4,047 m²). Manufacturers' ratings assume the mower runs most days. A lawn with many separate zones, narrow paths or trees takes longer, so a mower rated for exactly one acre may struggle to keep up in spring. If your lawn is close to an acre, a 1.5-acre model gives you margin.
Navimow's US store lists the X430 at 1.0 acre, while its European page lists the X430 at 3,000 m² (about 0.74 acre). We use the US figure, but treat it as a maximum.
Check your exact size in the fit calculator.