How big a lawn can the Automower 450X NERA actually look after?

Husqvarna rates the Husqvarna Automower 450X NERA for 5,000–7,500 m², and which end of that range applies depends on the version and how it mows.

• Wire-free bundle (with the EPOS Plug-in): 7,500 m². Knowing its position lets it mow in straight, overlapping lines, which covers ground more efficiently.
• Boundary-wire version: 5,000 m². On a wire it mows in an irregular pattern, and Husqvarna gives the same lower figure for the bundle when it mows that way.

Husqvarna also quotes every rated area as plus or minus 20%. The figure assumes an open, fairly simple lawn with a normal mowing schedule. Several things bring the practical number down: narrow passages between lawn areas, lots of beds and trees to work around, steep slopes (it's rated for up to 50% inside the lawn), and fast spring growth that needs more frequent cuts.

A sensible rule is to choose a mower rated at least 20% above your lawn area. On that basis, the wired version suits lawns up to roughly 4,000 m², and the wire-free bundle lawns of around 6,000 m². If you're near the top of either figure, the Husqvarna Automower 450V NERA carries the same wire-free rating as the bundle. Use our lawn size tool to measure your garden before deciding.