The short answer
Best for dealer support
Husqvarna Automower iQ seriesSee itPrice tier 4 of 4:Over $1,500Larger lawns and buyers who want local dealer support.Best wire-free pick for typical lawns
Segway Navimow i2 LiDAR seriesSee itPrice tier 3 of 4:$500–$1,500Typical lawns where you don't want to bury a boundary wire.Best for large, hilly lawns
Segway Navimow X4 seriesSee itPrice tier 4 of 4:Over $1,500Large or steep lawns with open sky.
Robot mowers are changing fast. Husqvarna is the established name with a deep dealer network, and Segway Navimow is a newer wire-free challenger. The right one comes down to how big your lawn is, how steep it is, how much sky it has overhead and whether you want a dealer to handle installation.
The short answer
- You want a dealer to install and service it: Husqvarna Automower iQ.
- You want wire-free setup for a typical suburban lawn: Segway Navimow i2 LiDAR.
- You have a large, hilly lawn with open sky: Segway Navimow X4.
At a glance
| Husqvarna Automower iQ | Navimow i2 LiDAR | Navimow X4 | |
|---|---|---|---|
| Price tier | Over $1,500 | $500–$1,500 | Over $1,500 |
| Navigation | Physical-wire or virtual-wire options | Wire-free LiDAR mapping | Wire-free network RTK |
| Lawn size (maker figures) | Roughly 0.5, 1 and 2 acres (410, 420, 440 iQ) | Roughly 800 to 2,000 m² | Roughly 2,000 to 5,000 m² |
| Slopes (maker figures) | See the maker | Up to about 45% | Up to about 84% (40°) |
| Installation | Dealer, or careful DIY | Wire-free | Wire-free; needs sky and network |
| Skip it if | You want a plug-and-play install with no dealer | Your yard is very open or featureless | Your yard has heavy tree cover |
For a rough sense of scale, one acre is about 4,047 square meters, so 2,000 m² is about half an acre. The Navimow i2 series is rated for roughly 0.2 to 0.5 acre, and the X4 series roughly 0.5 to 1.2 acres.
Wire or wire-free?
Husqvarna offers both physical-wire and virtual-wire boundary options. A physical wire takes work to install: Husqvarna typically needs a professional or careful DIY install. Segway Navimow's pitch is no boundary wire: the i2 uses LiDAR mapping, and the X4 uses network RTK positioning. Wire-free is simpler to set up, but each technology has limits. LiDAR can struggle in very open or featureless spaces, and RTK needs a clear view of the sky and a strong network connection.
Lawn size and slope
Check the maker's rated lawn area and slope against your actual lawn, with some margin. On the figures our research found, Husqvarna's largest residential model is rated for the biggest lawn, roughly 2 acres, while the Navimow X4 is the steepest-slope option at up to about 84% (40°) listed. The i2 LiDAR suits more typical suburban yards.
Installation and service
Husqvarna's deep dealer network is its main advantage: installation and service are available locally, though the install typically needs a professional or careful DIY work. Segway Navimow skips the boundary wire, but check what support and service are available where you live, since availability and pricing vary by region.
Which should you buy?
- You want local installation and service, or have a larger lawn: Husqvarna Automower iQ.
- A typical lawn and you don't want to bury a wire: Navimow i2 LiDAR.
- A large, steep lawn with open sky: Navimow X4.
- Your yard is heavily shaded by trees: avoid the X4 and look at Husqvarna or the i2 LiDAR.
The contenders
Best for dealer support
Husqvarna Automower iQ series
The dependable pick with a deep dealer network.
The dependable pick with a deep dealer network that handles installation and service. The residential 410 iQ, 420 iQ and 440 iQ cover roughly 0.5, 1 and 2 acres per Husqvarna, with both physical-wire and virtual-wire boundary options. It typically needs a professional or careful DIY install, and it costs more than the newer wire-free challengers.
What we like
- Residential 410 iQ / 420 iQ / 440 iQ models cover roughly 0.5, 1 and 2 acres per Husqvarna
- Offers both physical-wire and virtual-wire boundary options
- Dealer network handles installation and service
Trade-offs
- Typically needs a professional or careful DIY install
- Prices are higher than newer wire-free challengers
- Best for
- Larger lawns and buyers who want local dealer support.
- Skip it if
- You want a plug-and-play install with no dealer involvement.
Best wire-free pick for typical lawns
Segway Navimow i2 LiDAR series
A wire-free LiDAR mower for typical suburban lawns.
The Navimow i2 LiDAR series maps your yard with LiDAR, so there is no boundary wire to bury. Models cover roughly 800 to 2,000 square meters, with a listed slope capability up to about 45%. LiDAR can struggle in very open or featureless spaces, and availability and pricing vary by region.
What we like
- LiDAR-based wire-free mapping (no boundary wire to bury)
- Models cover roughly 800 to 2,000 m² of lawn
- Listed slope capability of up to about 45% on the i2 LiDAR series
Trade-offs
- LiDAR can struggle in some very open or featureless spaces
- Check availability and pricing in your region
- Best for
- Typical lawns where you don't want to bury a boundary wire.
- Skip it if
- Your yard is very open or featureless, or you haven't confirmed availability and pricing in your region.
Best for large, hilly lawns
Segway Navimow X4 series
Network-RTK navigation for large, hilly lawns.
The X4 series uses network RTK positioning for large open areas, with models rated for roughly 2,000 to 5,000 square meters and listed slopes up to about 84% (40 degrees). It needs a clear view of the sky and a strong network connection, and it is priced at the premium end.
What we like
- Network RTK positioning for large open areas
- Listed slopes up to about 84% (40°) on the X4 series
- Models rated for roughly 2,000 to 5,000 m²
Trade-offs
- Needs a clear view of the sky and a strong network connection for RTK
- Premium pricing
- Best for
- Large or steep lawns with open sky.
- Skip it if
- Your yard has heavy tree cover.
How we compared
Specs here, including lawn sizes, slope ratings and navigation technology, were checked against Husqvarna's and Segway Navimow's own product pages in October 2026, and each card shows the month. Lawn and slope ratings are the makers' figures, not our measurements. We did not test any of these mowers ourselves. Robot mower lineups move fast, so confirm current models, regional availability and prices before you buy. See our methodology and the full best robot lawn mowers guide.
Frequently asked questions
Is Husqvarna or Segway Navimow better?
It depends on your lawn and how you want it installed. Husqvarna offers a deep dealer network for installation and service, and its biggest residential models are rated for larger lawns. Segway Navimow is wire-free, so there is no boundary wire to bury, and its X4 series targets large, hilly lawns that have open sky.
Do robot mowers need a boundary wire?
Not all of them. Husqvarna offers both physical-wire and virtual-wire options, while Segway Navimow is wire-free, using LiDAR on the i2 series and network RTK on the X4 series. Wire-free is easier to install but depends on the lawn suiting the navigation technology.
Will a robot mower work under trees?
Heavy tree cover is a problem for RTK-based navigation, which needs a clear view of the sky, so the Navimow X4 is a poor fit for a shaded yard. A physical boundary wire or LiDAR does not rely on a view of the sky, but check each maker's guidance for your specific lawn.
