Segway Navimow i108A review: the bigger i-series for 800 m² flat lawns

The Navimow i108A is the larger sibling of the i105, one of the best-reviewed wire-free mowers sold in Australia. It covers up to 800 m² with the same RTK-plus-camera system. We haven't used it ourselves; this review uses Segway's Australian specs, local prices and independent tests of the i-series. Prices checked 20 October 2026.

By Domestic Robot · Editor: Christian Ganaban · Updated 20 October 2026

Researched, not testedThis guide is based on manufacturer information, Australian retailer listings and independent sources, all linked below. We haven't used these robots ourselves yet.

Quick answer

The i108A is a good buy for a fairly flat, open suburban lawn of 500–800 m². It's $2,199 on sale at Segway AU (RRP $2,498) and Essendon Mowers, and uses an RTK antenna plus a camera to mow neat parallel lines without a boundary wire. Testers rate the i-series app and setup among the best. The limits: a 30% (17°) slope rating, a 1 m minimum passage width, a manual cutting-height dial, and 4G anti-theft tracking only with a $199 add-on. For bumpy or sloping yards, the all-wheel-drive Navimow i206 AWD ($2,399) is the better fit; for under 500 m², the i105 at $1,799 does the same job for less.

Price and availability in Australia

Retailer	Price (AUD)	Status on 20 Oct 2026
Segway AU	$2,199 sale (RRP $2,498)	Includes a free mower garage
Essendon Mowers (VIC)	$2,199	In stock
roboticmower.com.au	$2,099 sale (usually $2,399)	Low stock
Bunnings (Marketplace)	$2,465.60	Sold by a third party, online only
JB Hi-Fi	$2,199	Shown as not available

Checked 20 October 2026. The Australian model code is i108A; i108E is the UK and European version. We didn't find it on Amazon AU. Bunnings' Marketplace listing title says 500 m², but its description and Segway's own page say 800 m².

Who should buy it, and who should skip it

Buy it if your lawn is 500–800 m², mostly flat, and has a reasonably clear view of the sky for the antenna.
Buy it if you want tidy stripes and a polished app; reviewers consistently praise both on the i-series.
Skip it if any part of your lawn is steeper than about 17°, or bumpy and soft: the front-wheel-drive i108A can lose grip.
Skip it if your only side access is narrower than 1 m, or the lawn is shaded by big trees and a two-storey house (see mowers for trees and shade).

Key specs

Spec	Navimow i108A
Recommended lawn	Up to 800 m² (about 160 m² per charge)
Navigation	EFLS 2.0: RTK antenna plus 140° camera (VisionFence), 150+ object types
Maximum slope	30% (17°)
Cutting width / height	18 cm / 20–60 mm (manual dial)
Minimum passage	100 cm wide, 40 cm high
Battery and runtime	5.1 Ah; about 120 minutes mowing, about 120 minutes to charge
Noise	58 dB(A)
Weather rating	IP66
Connectivity	Wi-Fi and Bluetooth; 4G via Access+ module ($199)
Zones	Up to 12
Warranty (AU)	3 years mower, 2 years battery

From Segway AU's product page, checked 20 October 2026. Segway's page lists both IP66 and IPX6, and weights of 10.9 kg and about 11.4 kg. JB Hi-Fi's listing gives a 2-year warranty; Segway AU and Navimow AU's warranty policy say 3 years on the i108A, with batteries covered for 2 years.

Navigation and setup

The i108A works out where it is from satellites, corrected by an RTK antenna you mount on a pole in the yard, and uses its front camera to spot obstacles and the lawn edge. You map the boundary by driving it around the edge in the app. Unlike the newer i2 AWD models, Segway AU doesn't list network RTK for the i108A, so plan where the antenna goes: it needs open sky and power, and a 10 m extension cable is sold separately.

Expert Reviews (UK, i105E, June 2024) found the perimeter drive a little finicky and left about 10 cm uncut at edges, but praised the parallel pattern that varies direction each time. The Robot Mower UK (February 2026, i105E and i108E) scored the pair 3.9/5, calling the app one of the best and setup easy, and noted the RTK station must have open sky.

Mowing: what testers found

The Robot Mower UK found the i-series mowed consistently on lawns within its limits, with simple blade changes. Its criticisms: the manual cutting-height dial is fiddly and, it says, accounts for most of the warranty claims it sees, and it recommends the i206 AWD for uneven or damp lawns. Top Ten Reviews (i105N, May 2024) rated navigation, noise and the app highly but noted the charging station needs very flat ground.

Consumer NZ has ranked the smaller i105 top of its robot-mower tests in 2025 and 2026, according to Segway NZ; we couldn't confirm the scores on Consumer NZ's site. The i108A wasn't tested. In CHOICE's Australian test, the i105E is shown as Recommended.

App, 4G and anti-theft

The Navimow app handles maps, up to 12 zones, schedules and cutting direction, and works with Alexa and Google Home. Out of the box, the i108A has a lift alarm and PIN. GPS tracking and out-of-boundary alarms need the Access+ 4G module ($199 at Segway AU); Segway AU also lists a Connect+ cellular plan at $49.90 a year. Basic mowing doesn't need a subscription.

Blades and running costs

Segway AU sells a pack of 12 blades with screws for $49, and Navimow suggests replacing blades every 2–3 months depending on use. Spare blades are included in the box (retailers list 9 to 12). That's around $50–$100 a year in blades, plus $49.90 a year if you add 4G.

Alternatives worth comparing

Mower	Navigation	Rated lawn	Max slope	Price (AUD, 20 Oct 2026)
Segway Navimow i105	RTK + camera	500 m²	30%	$1,799 (Segway AU)
Segway Navimow i206 AWD	Network RTK + camera, AWD, built-in 4G	500–600 m²	45% (24°)	$2,399 sale (Segway AU)
Segway Navimow i210 AWD	Network RTK + camera, AWD, built-in 4G	1,000 m²	45%	$2,599 (Navimow AU)
eufy E15	Cameras only	800 m²	18°	$2,499 (eufy AU, sold out)
ECOVACS Goat O600 RTK	RTK + camera	600 m²	45%	$1,119 Care Kit (Amazon AU)

Navimow AU lists the i206 AWD at 500 m²; Segway's product page says 600 m². For only $200 more than the i108A, the i206 AWD adds all-wheel drive, a steeper slope rating and built-in 4G, but covers less lawn. See our Mammotion vs Navimow comparison, Goat O600 RTK review and Husqvarna Automower 305 review.

Where to buy

On 20 October 2026, Segway AU and Essendon Mowers both had it at $2,199. Segway AU's offer includes a free mower garage.

Segway AU: $2,199 Essendon Mowers: $2,199

Verdict

The i108A brings the well-reviewed i-series formula to bigger lawns: wire-free, neat parallel mowing and a good app, with a three-year mower warranty. It's the right choice for a flat, open 500–800 m² lawn. If your yard slopes, is bumpy, or you want anti-theft tracking included, spend $200 more on the i206 AWD; if it's under 500 m², save $400 with the i105. Compare the full field in our best robot lawn mowers guide.

Weighing it against a camera-only mower? Read eufy vs Segway Navimow. Setting one up? Our robot mower setup guide covers antenna placement.

Common questions

How much is the Segway Navimow i108A in Australia?

$2,199 at Segway AU (RRP $2,498) and Essendon Mowers, checked 20 October 2026.

What's the difference between the Navimow i105 and i108A?

Mainly lawn size: the i105 is rated for 500 m² and the i108A for 800 m². Both use RTK plus a camera and have a 30% slope rating.

Does the Navimow i108A need an antenna?

Yes. It comes with an RTK antenna kit that you mount in the yard with a clear view of the sky.

Can the Navimow i108A handle slopes?

Up to 30% (17 degrees), according to Segway. For steeper or bumpy lawns, Segway's i206 AWD is rated to 45%.

Does the Navimow i108A have 4G?

Not built in. The Access+ 4G module costs $199 at Segway AU and adds GPS tracking and out-of-boundary alarms.

Sources

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