Segway Navimow i105N vs Husqvarna Automower 410 iQ

These are the two robot mowers a homeowner actually chooses between: the cheap wire-free one built for a small lawn, and the wired-or-virtual one built for four times as much ground. They are also the only two robots in our registry that publish enough for a fair comparison, because both state a run time and a charge time.

The short answer

The two spec sheets, side by side

The slope limit that runs backwards

Husqvarna publishes two slope figures and Segway publishes one, and the headline comparison reverses depending on which Husqvarna number you use.

This matters because the boundary is where the machine turns, and a lot of real gardens slope toward a fence or a path. A bank that falls away at the perimeter is precisely the case Husqvarna's 15% figure excludes and Segway's single 16 degree limit does not.

The full slope treatment, including the all-wheel-drive machine that publishes 70%, is in robot mowers for hills.

Duty cycle: the only two robots that let you check

A run time on its own tells you almost nothing. What decides whether a robot keeps up with your grass is the fraction of the day it spends cutting rather than sitting on the dock, and that needs both figures. Two manufacturers publish both. These are they.

Four percentage points is not the story here. The story is that both of these makers let you do the sum at all, and that the Automower applies its slightly better duty cycle to a 32% wider blade across four times the ground.

How much ground each has to cover

Who should buy the Navimow i105N

Small lawns, and gardens where the slope runs to the edge. No wire to bury means no wire to cut with an edging spade in year three, 58 dB(A) is the quieter of the only two published robot noise figures, and 24 lb is light enough to carry to a shed single-handed.

The honest limits are all hard ones: an eighth of an acre is genuinely small, 7.1 inches of cut means many passes, and 16 degrees rules out a lot of real gardens.

#ad Check the Segway Navimow i105N Robot Mower price on Amazon — how we're funded.

Who should buy the Automower 410 iQ

Half an acre, steeper ground inside the lawn, and anyone who wants the boundary to be a choice rather than a constraint. Husqvarna publishes a 45% internal slope limit, a 1 to 4 inch cut height range, three pivoting razor blades, 62 dB(A) and a 4-year warranty.

The honest limits: 15% at the boundary is restrictive, an irregular lawn drops the rating to a quarter acre, the battery is published as 5 Ah with no voltage so watt-hours cannot be computed, and 38 lb is a two-handed lift.

#ad Check the Husqvarna Automower 410 iQ price on Amazon — how we're funded.

Deciding in three steps

1. Measure the grass. Over an eighth of an acre, the Navimow is out on its own rating.
2. Walk the perimeter. If it climbs more than about 8.5 degrees, the Automower is out.
3. If both survive, take the quieter, lighter, cheaper machine. That is the Navimow.

The Navimow has a full review in the Navimow i105N review, the wire-free field is in best wire-free robot mowers, and the setup work either machine needs is in the robot mower setup guide.

What we cannot tell you

We have not installed either machine. Neither maker publishes a ground speed, so the linear-feet figures above cannot be turned into mowing hours. Husqvarna publishes a 5 Ah battery with no voltage, so its energy cannot be computed; Segway publishes no capacity at all. Neither publishes a blade replacement interval. And we have no data on how either machine copes with wet grass, leaf fall or a lawn that has been left three weeks.