Segway Navimow X430

Should you buy the Segway Navimow X430?

The Segway Navimow X430 is the mower for a full acre with hills. At $2,499 it ranks #2 of 10 robot lawn mowers, tied on score with the ECOVACS A3000. It combines network RTK with 360-degree vision and all-wheel drive, and the 84 percent slope rating is the highest we list alongside Mammotion's AWD units. If your lawn is flat and under three quarters of an acre, the ECOVACS A3000 gives you an edge trimmer for the same money. If you want AWD on a smaller budget, the Mammotion LUBA mini 2 is $500 less.

Where it earns its score

• Highest Features score, tied. Features hit 96 on EFLS network RTK, VSLAM vision, triple panoramic cameras and ToF sensors.
• Serious terrain ability. An 84 percent (40 degree) slope rating, Xero-Turn 4WD, dual suspension and 2.8-inch obstacle crossing.
• Wide cut. A 17-inch dual-disc deck with 12 blades covers an acre in reasonable time.
• Built tough. IP66 rated, Quality scores 92, and it recharges in about 90 minutes.

What to know first

• Value is the lowest factor. At 70, it is a $2,499 mower and the score says so.
• Heaviest consumer robot mower. At 63.7 lb, lifting it into a garage or over a step is a two-hand job.
• Limited stripe customization. Pattern options are thinner than on the WORX or Mammotion apps.
• Warranty scores 75. Solid, but not the standout it is on the Husqvarna.

Questions buyers ask