Segway Navimow X350

The X330 is the X3 model most people should look at: a one-acre rating, 8Ah battery for about 160 minutes of mowing with a 65 minute recharge, and it sits at $2,299 on Segway's site after a $500 cut from launch pricing. Like the rest of the X3 line it runs EFLS 3.0 - RTK fused with three cameras doing visual SLAM - so it holds position under tree canopy where the older H series and most budget RTK mowers lose lock, and its 300-degree camera plus ToF array recognizes 200+ obstacles with night vision. It mows fast (about 3.3 ft/s) in tidy parallel stripes, cuts 2 to 4 inches, runs at 60 dB, and includes two years of 4G with GPS tracking before the roughly $33 a year Connect+ renewal. Pro Tool Reviews and Robot Review Desk both call the X3 the most polished wire-free mower for flat-to-moderate suburban lots. Where it falls short: two-wheel drive makes the 50% slope rating shaky on side-hills, there is no physical rain sensor (it relies on forecasts), the centered 9.3 in disc leaves a few inches uncut along walls unless you buy the Trimmer accessory, and 43.7 lb is a lot to lift over a curb. Against the Mammotion Luba 2 AWD 3000, the X330 is quicker and gentler on turf but the Luba climbs 80% grades. For a one-acre yard with trees and gentle slopes, this is the sweet spot of the range.

The X315 is the entry to Segway's X3 line: the same 43 lb chassis, 9.3 in cutting deck, 2 to 4 inch height range and EFLS 3.0 positioning as the $4,499 X390, just with a 6Ah battery good for about two hours and a half-acre rating. EFLS 3.0 fuses RTK with three cameras doing visual SLAM and odometry, which is why testers at Notebookcheck and TechRadar found it kept mowing straight under trees where RTK-only mowers stall. Obstacle avoidance uses a 300-degree camera array with a ToF sensor and recognizes 200+ objects including pets, with night vision so it can run after dark at 60 dB. Setup is about 30 minutes and truly wire-free, though you still mount an RTK antenna. Segway has pulled it from its own store (listed at $1,999 but unavailable) while Home Depot, Acme Tools and Abt still sell it, and it is the only X3 that does not get multiple years of 4G included - one year, then about $33 a year. Reviewers' knocks: it is two-wheel drive so the 50% slope rating is optimistic on side-hills, there is no onboard rain sensor (it relies on forecasts), the single 9.3 in disc leaves about 3.5 in uncut at edges without the optional Trimmer accessory, and standby power draw is high. Versus the Mammotion Yuka at $1,399 the X315 costs more but is faster and better under trees; if you are near 0.5 acre, the X330 is often only $300 more.

The X390 is the flagship of the X3 series and the one Pro Tool Reviews ran on a multi-acre property with four zones linked by tunnels: it covered 3,300 sq ft on 16% of its 12.8Ah battery, which works out to roughly four hours of mowing and a 2.5 acre rating, with a 100 minute recharge. Everything else matches its siblings - 9.3 in cut, 2 to 4 inch heights, 60 dB, EFLS 3.0 RTK fused with three-camera visual SLAM that keeps working under trees, 300-degree obstacle recognition with night vision, and a 43.9 lb body on 10 inch wheels. Segway bundles five years of 4G service, the longest in the lineup, before the $32.90 a year renewal. At $4,499 (down from $4,999) it is expensive for a two-wheel-drive mower: the Mammotion Luba 2 AWD 10000 covers the same area with all-wheel drive and 80% slope capability for less, and the X3's 50% rating only holds up on straight climbs. Testers also note there is no physical rain sensor, the single 9.3 in disc is narrow for 2.5 acres so full cycles take days, and edges need the optional Trimmer attachment. In its favor: faster and more precise stripes than the Luba, gentler on turf, a cleaner app, and the Doodle feature for mowing patterns into the lawn. Choose it for a large, flat-to-rolling estate lawn with tree cover where positioning reliability matters more than hill climbing.

The i110N is the same 7.1 in body as the i105N with double the battery (5.1Ah, about 120 minutes per charge) so it can cover a quarter acre, and it won Tom's Guide's Editor's Choice for cut consistency at a price that has slid from $1,299 at launch to a $929 list and frequent sub-$800 sales. It uses Segway's EFLS 2.0 RTK plus a front VisionFence camera, so when the satellite fix wobbles under trees it can hold the boundary visually for a while instead of wandering off. Reviewers consistently praise the straight, overlapping stripes with no missed patches and the near-silent 58 dB operation that makes night mowing realistic. The complaints are the flip side of the budget price: it is slow (Tom's Guide clocked roughly three times the time of push mowing), the 30% slope rating and front-wheel drive mean it spins out on real hills, PCWorld's unit repeatedly drove off curbs because there is no drop-off detection, and GPS anti-theft needs the $120 Access+ 4G module. Segway has pulled it from its own store in favor of the i210 AWD, but Home Depot still stocks it. For a flat quarter-acre suburban lot it remains one of the cheapest dependable wire-free options; if your yard has slopes or a parking strip, look at the i210 AWD or a Luba Mini instead.

The i105N is the mower that made wire-free RTK cheap. Segway cut it from $999 to $799 in 2026 and it regularly dips to $669-699, which puts it in Worx Landroid Vision territory while still using a proper RTK antenna for centimeter-level positioning. It is small - 7.1 in cutting width, 24 lb, a 2.55Ah battery good for about an hour - so the rated 1/8 acre is honest; Amazon owners with a typical city lot say a full cut takes around 2.5 hours across two or three charge cycles. Setup is genuinely DIY: mount the antenna somewhere with open sky, drive the mower around the perimeter with your phone, and let AI Assist Mapping snap to the lawn edges. Owners like the quiet 58 dB motor, the straight-line stripes, and that it pays for itself in a season versus a lawn service. The knocks are consistent too: getting stuck on flat ground and in dips, mapping frustration when trees hang over the antenna, a manual cutting-height dial, and a few units dying after a few months with slow email-only support. The 30% slope limit and front-wheel drive rule out anything hilly. Compared with the Mammotion Yuka Mini, the i105N is cheaper and simpler but has no vision-only mode when RTK is hopeless; step up to the i110N if you have more than about 5,000 sq ft.

The X7 Plus is the long-range version of Sunseeker's AWD X7: same 14 in dual-disc deck, same 70% slope rating, same RTK-plus-camera AONavi navigation, but a higher-capacity battery that lets it schedule 1.5 acres instead of 0.75. List is $2,999.99 at Sunseeker (frequently sold out) and dealers such as Robotic Mower Services sell a Gen 2 at $2,799.99; the Amazon listing has been unavailable for a while. That undercuts a Mammotion Luba 2 AWD 5000 by several hundred dollars for similar coverage and traction. In practice it is a systematic-row mower with 100 zones, virtual walls and no-go areas, edge trimming to about 1.2 in, a rain sensor, and 4G tracking with a geofence lockout. Reviewers who ran the standard X7 praised the AWD on lumpy, sloped ground and the way the twin cameras learn the yard over a few passes, and criticized the app (a single joystick for mapping, thin documentation, schedules that are easier to leave in auto mode). Obstacle avoidance is good for people, pets and toys, but small low objects like a softball can be run over, and like every RTK mower the reference station needs open sky. At 60 dB it is quiet for a 31 lb machine with two spinning discs. Best for hilly 1 to 1.5 acre properties where AWD matters and the buyer is fine trading Mammotion's app polish for a lower price.