Corrections
Specs that are wrong almost everywhere
Six figures in this database disagree with what retailers, review sites and spec aggregators publish. In every case we went back to the manufacturer’s own documentation. Four of the six are a sibling model’s rating copied into the wrong row — the same failure, repeated across three different makers.
Slope ratings
These matter most. A slope rating is the spec that decides whether a machine works your land at all, and unlike area there is no margin to absorb an error — the mower either holds the grade or slides.
Listed at 60% grade elsewhere. No Mammotion source publishes 60% for any LUBA mini 2 variant.
Why it is wrong The only sub-80 figure Mammotion publishes for this machine is a 40% EDGE-mode rating, which is not the headline spec.
Why it matters Understated by a quarter. Buyers on moderate slopes were ruling out a machine that handles them.
Source: Mammotion product pages and user manual
Listed at 45% grade in circulation elsewhere. The official Segway i-series manual gives 30% inside the work area and 10% at the boundary.
Why it is wrong The 45% figure is the i2 AWD series rating, copied onto the wrong product line.
Why it matters A buyer with a 40% bank would have been told this machine could work it. It cannot.
Source: Segway i-series user manual (Segway-hosted PDF), plus two Segway spec pages
Listed at 50% grade elsewhere. Segway publishes 84% (40 degrees) for the X4 series.
Why it is wrong The 50% figure is the X3 series rating (X330/X350/X390). The X350 is also rated 1.5 acres, which is how the two rows appear to have merged.
Why it matters This is the error that costs a sale rather than causing one. The X450 is among the most slope-capable wheeled machines on the market and was being presented as an ordinary one.
Source: navimow.com X4 product pages, three Segway-operated properties in agreement
Rated areas
Area errors are more forgiving, because the coverage buffer already assumes the published figure is optimistic. They still move a machine in or out of a buyer’s shortlist entirely.
Listed at 1.5 acres elsewhere, a figure that appears in no Husqvarna source at all.
Why it is wrong Husqvarna publishes 2.5 acres as Lawn Size and 1.25 acres as irregular-lawn capacity. 1.5 acres is the Automower 560 EPOS figure and looks to have been transcribed from the wrong row.
Why it matters Husqvarna contradicts itself here, so this row is published with the conflict recorded rather than resolved.
Source: husqvarna.com/us spec table; note the operator manual gives the conservative 1.25 figure
Listed at 0.37 acres (1,500 sq m) elsewhere. WORX publishes 1 acre for the US WR340.
Why it is wrong The 1,500 sq m figure belongs to the European Landroid Vision line, where WR2xxE part numbers encode square metres. The US WR3xx Cloud line does not use that convention.
Why it matters Wrong by 2.7 times. A buyer with three quarters of an acre would have dismissed a machine rated for the job.
Source: worx.com product page and full robotic mower catalogue, corroborated by three retailers
Listed at 1.25 acres elsewhere. Dreame publishes 1.20.
Why it is wrong A straight conversion of 5,000 sq m gives 1.2355 acres, so 1.25 looks like a rounding someone did themselves. Dreame rounds down to 1.20.
Why it matters Small, but it is the difference between quoting the manufacturer and quoting arithmetic done on the manufacturer.
Source: three Dreame-owned domains in agreement
The pattern
Three of the four slope errors are cross-contamination: a figure that belongs to a neighbouring model in the same maker’s range, sitting in the wrong row. Segway’s i-series inherited the i2 AWD’s 45%; the X450 inherited the X3 series’ 50%. Manufacturers publish long ranges with small naming differences, and a spec table copied once propagates everywhere.
The fourth is a unit problem rather than a copying one. WORX sells a European line whose part numbers encode square metres and a US line that does not, and the European figure crossed over.
None of this is exotic. It is what happens when nobody checks a number against the source that published it. We check 34 machines and publish the confidence level on every row, including the ones where the manufacturer contradicts itself and we could not resolve it.
Straight answers
- What is the maximum slope of the Mammotion LUBA mini 2?
- 80%. It is widely published as 60%, which is wrong — the only sub-80 figure Mammotion publishes for this machine is a 40% EDGE-mode rating, which is not the headline spec.
- What is the maximum slope of the Segway Navimow i110N?
- 30%. It is widely published as 45%, which is wrong — the 45% figure is the i2 AWD series rating, copied onto the wrong product line.
- What is the maximum slope of the Segway Navimow X450?
- 84%. It is widely published as 50%, which is wrong — the 50% figure is the X3 series rating (X330/X350/X390). The X350 is also rated 1.5 acres, which is how the two rows appear to have merged.
- What is the rated area of the Husqvarna Automower 450XH EPOS?
- 2.5 acres. It is widely published as 1.5 acres, which is wrong — husqvarna publishes 2.5 acres as Lawn Size and 1.25 acres as irregular-lawn capacity. 1.5 acres is the Automower 560 EPOS figure and looks to have been transcribed from the wrong row.
- What is the rated area of the WORX Landroid Vision WR340?
- 1 acre. It is widely published as 0.37 acres, which is wrong — the 1,500 sq m figure belongs to the European Landroid Vision line, where WR2xxE part numbers encode square metres. The US WR3xx Cloud line does not use that convention.
- What is the rated area of the DREAME A3 AWD Pro 5000?
- 1.2 acres. It is widely published as 1.25 acres, which is wrong — a straight conversion of 5,000 sq m gives 1.2355 acres, so 1.25 looks like a rounding someone did themselves. Dreame rounds down to 1.20.