- Area
- Up to 1.5 acres
- Max slope
- 84%
- Navigation
- Tri frequency Network
- Cut width
- 17 in
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Segway Navimow X450
AWD wire free mower for steep yards up to 1.5 acres
Researched by Riley Hart · updated Nov 11, 2026
Is the Segway Navimow X450 worth it? The X450 is the 1.5 acre top of the X4 line, with four wheel drive, a 17 in deck and a 40° slope rating. It costs $2,999 as of Nov 11, 2026, and 2 independent reviewers tested it.
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Pros
- Four wheel drive, rated for 40° slopes
- Wide 17 in deck
- Up to 120 zones
- Network RTK, often no antenna to install
- 2 years of 4G included
Cons
- Expensive
- Large and heavy
- Louder than most, up to 68 dB(A)
- Busy app with many settings
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The X450 is the 1.5 acre top of the X4 line, with four wheel drive, a 17 in deck and a 40° slope rating. Reviewers of the X430 sibling found grip and navigation excellent on hard, sloped lawns. It is big, loud for a robot and pricey, so flat small yards do not need it.
Best for: hilly or rough yards up to 1.5 acres. Skip if: your lawn is small and flat.
Specs
- Area
- Up to 1.5 acres (Navimow); Expert Reviews lists 5,000 m² for the UK X450
- Max slope
- 84% (40°) (Navimow); PCWorld's sloped yard posed no trouble for the X430 sibling
- Navigation
- Tri frequency Network RTK with 360° VSLAM and VIO plus 360° AI vision (Navimow)
- Boundary wire
- Not needed
- Cut width
- 17 in (Navimow)
- Cut height
- 0.75 to 4 in (Navimow)
- Battery runtime
- Up to 9,600 sq ft per charge, 90 min or less recharge at 224W (Navimow); Expert Reviews saw about 150 min runs on the X430
- Drive
- Four wheel drive, dual suspension, front wheel steering, climbs 2.8 in obstacles (Navimow)
3 year cost of ownership
- Robot
- $2,999
- Total
- $3,032
The garage bundle is $3,348.99 on the Navimow store. Blade prices were not confirmed on a page we fetched.
Status and safety
- US availability
- ● On sale
- Recalls
- ● No Segway Navimow robot recall in the CPSC database as of Nov 11, 2026. Checked daily.
- FCC authorized
- Not checked
- Company
- ● Active
- Warranty
- ● Up to 3 years (Navimow)
Price history
Tracked dailyTracking started Nov 11, 2026 at $2,999.
Each day adds a point. Turn on a price alert to hear about drops.
Where to buy
- Amazon
- See price →
- Navimow store
- $2,999 →
Affiliate links. We may earn a commission. It never changes our score. Disclosure
What independent reviewers found
- Testing the X430 sibling, it climbed an uneven, sloped yard without spinning, sliding or stalling, stayed inside the boundary around trees and a play set, and did not slip over a raised edge where the i215 had. Editors' Choice; cons were price, size and weight.
- PCWorld (TechHive)
- Testing the X4 series (X430 unit), it praised grip on 40° slopes, gravel and kerbs and easy setup. The first pass was very good, the second excellent, and it stayed 5 to 10 cm from beds. It ran about 150 min per charge and measured 68 dBA.
- Expert Reviews
Spec history
Checked dailySpec tracking starts with the next daily check.
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Questions buyers ask
Is there a subscription?
Connect+ 4G is free for 2 years on the X450, then $32.90 per year, per Navimow.
How steep a hill can it mow?
Navimow rates it for 84% (40°) slopes thanks to four wheel drive and dual suspension.
X450 or X430?
Same AWD body. The X450 is rated for a bigger area, so pick it if your lawn is over about two thirds of an acre.
Guides and rankings with the Segway Navimow X450
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