The full comparison
Two spec sheets, read closely
Segway Navimow asks $799 for the i105; Segway Navimow asks $1,099 for the i110. That is a gap of $300, and this page exists to tell you whether it buys anything your yard will notice. i110 covers more ground on paper; i110 climbs harder. The sections below walk every dimension that matters, drawn from both spec sheets, both manuals, and the places where owners' reports converge.
How they navigate
Both machines belong to the same navigation generation, so this section is about temperament rather than category.
Segway Navimow i105
Segway's RTK positioning plus the VisionFence camera system. Under open sky the fix is crisp and the vision handles obstacles. Like every RTK-only machine it wants sky, and a small open yard gives it exactly that, which is why this technology paired with an eighth of an acre works so cleanly.
Segway Navimow i110
The same RTK plus VisionFence stack as the i105, with more capacity behind it. Small-yard sky is usually open sky, and under open sky this system simply works.
Hills, ruts, and wet grass
i110 holds the terrain card at 40 percent against 30 percent. Whether that matters depends entirely on whether your lawn has a hill worth the name.
Segway Navimow i105
Rear-wheel drive rated to 30 percent slopes, meaning the gentle crown of a normal small lawn and nothing more heroic. This is a machine for lawns, not hillsides.
Segway Navimow i110
Still rear-wheel drive, but rated to 40 percent grades, a meaningful step over the i105 for yards with a real crown or a modest bank.
The cut itself
Cutting width, height range, and pace decide how the lawn actually looks between visits, and the two decks approach it differently.
Segway Navimow i105
A 7.1 inch cut at 1.2 to 2.4 inches of height, pacing about 1,076 square feet per hour, which crosses an eighth-acre several times a week without hurry. The finish on small flat lawns is what sells the whole category: even, quietly striped, endlessly repeated.
Segway Navimow i110
The same 7.1 inch deck and height range as its smaller sibling, with capacity for a quarter acre and six zones instead of four.
Living with them
A robot mower is a housemate before it is a tool: the app, the install, the noise, and the schedule are what you touch after week one.
Segway Navimow i105
Navimow's app is widely considered the most polished onboarding in the category: the mapping drive is smooth, the scheduling screens are clean, and the whole install commonly fits inside an hour. Four zones cover the front-and-back reality of small properties.
Segway Navimow i110
The same praised app and hour-scale install. The extra zones matter more than they sound: front, back, the side strip, and the patch by the shed each get their own schedule and their own cutting height.
Power, range, and theft
Batteries set the rhythm of the mowing week, and the cellular question decides what happens on the worst day you can imagine for a machine that lives outside.
Segway Navimow i105
A 90 minute charge yields about 60 minutes of work, comfortable at this acreage. No cellular module: on Wi-Fi it reports, beyond it it does not, the same honest economy trade the YUKA makes.
Segway Navimow i110
The upgrade that defines it: a 4G module, so the machine reports, alarms, and locates itself from anywhere. For front yards, corner lots, and streets where strangers walk past, this is the feature that lets owners sleep.
What upkeep looks like
The maintenance list is where robots humiliate gas mowers, but the two machines still differ in small ways worth knowing.
Segway Navimow i105
Standard robot consumables: small blades, occasional cleaning, firmware. Nothing with an engine's appetites.
Segway Navimow i110
Identical to the i105: blades, rinse, firmware, winter shelf.
What owners report
We do not claim to have mowed with every machine; we claim to have read everything owners write about them, and to report only where their accounts converge.
Segway Navimow i105
The i105's owner base is the largest in the small-yard class, and the reports repeat themselves: the app is the best onboarding in the category, the machine vanishes into a routine within a week, and the area limit is real. The most common regret thread is from buyers whose lawn measured bigger than they guessed; measure before ordering is practically the community motto.
Segway Navimow i110
i110 threads read like i105 threads with the anxiety removed: same praised app, same quick install, plus 4G owners who mention checking the machine from vacation exactly once, then trusting it. The consensus recommendation pattern is consistent: between the two small Navimows, the i110's headroom and tracking are worth the difference for most yards.
Three yards, three answers
Spec sheets argue in the abstract. Yards are specific. Here is how this duel resolves on three grounds we hear about constantly.
The flat, fenced quarter acre
i110 handles this comfortably; the i105 at 0.125 acres of rated capacity is at or past its limit here. Rated capacity should exceed your measured lawn by a third, so this yard has already made its choice.
The half acre with one real hill
Honestly, neither machine is the hero here: 40 percent is the better of the two ratings, and a truly steep bank wants the 80 percent AWD class, a LUBA, before either of these.
The acre under mature trees
Neither, comfortably. Both are satellite-first machines, and heavy canopy is their shared weakness; owners under real tree cover report pauses and hunting. For this yard, step up to the LiDAR generation before spending on either.
Before you order either: the preflight
Four checks, ten minutes, and they prevent nearly every regretful return in this category. First, measure the lawn honestly, in square feet, with a mapping app rather than a guess; rated capacity should exceed reality by a third. Second, stand in the yard and look up: both of these machines use satellite positioning, so open sky matters, and the antenna wants the clearest view your property offers, high and unobstructed. Third, walk the narrowest gate the machine must pass; a robot that cannot reach the back lawn mows half a property. Fourth, pick the dock spot now: level ground, cover from the worst weather if you can manage it, and power within reach.
And decide the cellular question before checkout, not after a theft: only the i110 carries 4G; if the machine will live within sight of a street, that single line in the spec sheet is worth real money.
Install day, honestly
The brochures say fifteen minutes. The truth depends almost entirely on which navigation system you bought, so here is what the first afternoon actually looks like with each.
Segway Navimow i105
Segway has tuned the i-series install to feel like consumer electronics. The small RTK antenna mounts on the dock itself or a nearby wall, the app walks you through a perimeter drive with a virtual joystick, and VisionFence fills the gaps where satellite reception dips. On the eighth-acre yards this machine is meant for, the whole ceremony fits inside an hour. The manual's one real demand is the same as every RTK machine: give the antenna sky, not eaves.
Segway Navimow i110
The same tidy i-series routine as the i105: dock with integrated or wall-mounted RTK antenna, app-guided perimeter drive, VisionFence covering shaded stretches. A quarter-acre map takes perhaps twenty minutes of driving. The i110 adds 4G, which means one extra step of activating connectivity, and one extra comfort: once it is set up, the mower reports in even when your home Wi-Fi does not reach the far corner of the yard.
The math of the mow
Rated pace, translated into your week: at 1,076 square feet per hour, the i105 covers its full 0.125 acres rating in roughly 5.1 hours of actual mowing, while the i110 at 1,076 square feet per hour needs about 10.1 hours for its 0.25 acres. Neither does it in one sitting; both work in charge cycles, mowing, docking, topping up, and going back out without asking you anything.
The practical difference: on the same half-acre lawn, the i105 finishes a full pass sooner and spends more of the week parked, which matters if you want mowing confined to school hours or weekday mornings. Spread over a normal schedule of two to three passes a week, both machines keep a lawn permanently at height rather than rescuing it, and that steady rhythm, not raw speed, is what makes a robot lawn look better than a Saturday-mowed one.
A year in the yard with each
Robot mowers are seasonal creatures: the spring surge, the summer drought, the leaf fall, and the winter shelf each ask something different of them.
Segway Navimow i105
An eighth of an acre changes fast in the spring flush, and the i105's near-daily visits are what keep it looking mown rather than cut. Summer wants the 2.4 inch ceiling. Fall leaf cover beyond a light scatter is worth raking first; small decks are mulchers of blades, not of oak drifts.
Segway Navimow i110
Same seasonal manners as the i105 with more headroom: the quarter-acre spring surge stays inside its capacity, summer runs tall, and its 4G means even the machine's winter nap is monitored, a small comfort the cheaper sibling does not offer.
Where this duel sits in the ledger
Nothing in the ledger undercuts this pair; these are the least expensive serious machines we track. Above them sits the Mammotion YUKA mini 2 at $1,399, for the buyer whose yard demands more than either machine here offers: The cheapest way into LiDAR navigation for a small flat yard.
The other duels, if this one did not settle it: X330 vs LUBA 3 AWD 5000 · LUBA mini 2 AWD 1500 vs i110 · LUBA 2 AWD 3000HX vs LUBA 3 AWD 5000 · YUKA mini 2 vs i105 · X350 vs LUBA 2 AWD 10000H
The verdicts, written out
Segway Navimow i105
The i105 is the gateway machine: the least money that buys a real wire-free robot from a serious maker. Its limits, small area, gentle slopes, no 4G, are printed on the label. For a genuinely small flat yard it is the rational first robot, and the i110 above it exists for everyone who reads those limits and flinches at exactly one.
Segway Navimow i110
The i110 is the sensible default for small yards: modest price, polished software, double the area headroom of the i105, and the theft protection the cheaper machine skips. Between the two Navimows, choose the i105 only when every one of its limits sits comfortably inside your yard's reality.
Fair questions
Is the i105 or the i110 better for slopes?
Segway Navimow i110 climbs 40 percent grades against 30 percent for the other machine. For genuinely steep ground, the higher figure with all-wheel drive is the safer buy.
Which covers more lawn?
The i110 is rated for 0.25 acres; the other for 0.125. Buy at least a third more capacity than your measured lawn so the machine rests and recharges comfortably instead of running flat out.
Which should I buy for a yard with heavy tree cover?
Neither is ideal: both are satellite-first machines. Under heavy canopy, look at the LiDAR generation, the LUBA 3 family or the mini 2, before either of these.
Do either of them cut all the way to the edge?
No. Like nearly all robots, both leave a small fringe at hard borders; plan one relaxed string-trimmer lap a month. Edges remain the class's honest weakness.
Do they need Wi-Fi, and is there a subscription?
Setup and app control want a connection: Wi-Fi at the dock, or the machine's own 4G where fitted. Core mowing runs without a monthly fee on every machine here; connected extras such as cellular tracking can carry a plan after an included period, so check the current terms on the listing before you count on them forever.
How loud are they, really?
Quiet enough to run at 7 am without apology. These machines cut with small razor blades spinning under a slow chassis, roughly the sound level of a normal conversation, against the 90-plus decibels of a gas mower. The usual owner surprise is not the noise but the silence: you stop noticing mowing is happening at all.
Can they mow in the rain?
Both are weather-sealed for the drizzle they will inevitably meet, and both are better lawn citizens when scheduled around soaking rain: wet grass cuts ragged, clumps instead of mulching, and turns slopes slick. Rain sensors and app schedules handle it; the machines survive rain, the lawn just prefers they wait an hour.
What happens to them in winter?
Indoor storage, half-charged, dock unplugged. Lithium batteries age fastest when stored full and frozen; a garage shelf through the snow months is the entire wintering procedure, followed by a firmware update at spring wake-up.
Which is the value pick right now?
On list prices, the i105 at $799. Both brands discount hard through the season, so check the noticeboard before paying list for either.