Being upfront: the mower is good and I appreciate having spare blades in the box. My three-star is about the initial app-guided mapping walk — the instructions on how fast to walk and how close to hug the edges weren't clear, and my first map cut off a strip along the driveway that I had to redo. Once I figured out the pace it was fine and it's cut great since. Just think the onboarding could hold your hand more.

No real complaints about the machine — it maps my shaded backyard well and the spare blades are a nice safety net. The only reason it's four stars is that the mapping walk took me closer to 40 minutes than the 20 I expected, mostly because my yard has a lot of little garden beds to route around. Once done it's been flawless. Blade swap is as easy as they say.

The mower is excellent and the wire-free perimeter setup was painless. The blade kit is handy to have. If I'm nitpicking, I wish the kit had included a small storage case for the spares so they're not loose in a drawer where I could nick a finger. Tiny thing. Four stars and a happy yard.

Navigation is rock solid even in my shady corners, no issues there at all, and the spare blades are a nice extra. The one honest downside is that if I let it run when the grass is damp it leaves some clumps behind. It never gets lost or stuck, it just doesn't cut as clean when it's wet. I've started scheduling it for later in the day and that mostly solves it, but a wet-grass mode would be great.

Wire-free setup was quick and the fact that spare blades came in the box means I skipped the usual scramble to find parts halfway through summer. Cuts my quarter acre reliably.

I want to be fair because the mower is genuinely great and the LiDAR under my tree canopy is exactly as advertised. What knocked a couple stars off is that after a firmware update, my no-go zones around the pond and the flower beds got wiped and I had to redraw them. It only took a few minutes to fix but it caught me off guard and I didn't notice until it had already clipped an edge. Would love a heads-up or a settings backup before updates push.

I'm particular about how the lawn looks and a clean cut comes down to a sharp blade. Having the kit meant I could rotate to a fresh set before the old ones dulled, and the difference in the cut is night and day. The S4's navigation is precise even along my shaded fence line.

No issues with the mowing or the blades — the S4 is quiet, sets up fast, and the spare blades made the first swap painless and tool-free. The one hiccup was getting the app to pair on day one; took me a couple tries before it connected. After that it's been smooth. Happy overall.

In a strict HOA and the lawn has to look sharp. The S4 keeps it tidy and quiet, and having the blade kit on hand means the edges stay crisp all season instead of getting ragged before I remember to reorder. Swap is tool-free. Neighbors have asked what I'm using.

my backyard is basically a shade tunnel between two big elms and every gps mower i tried lost itself. the s4 maps it fine. the included blade kit was a nice touch — first set dulled, dropped in the spares, back to a crisp cut in minutes.

Cuts my shaded lot beautifully and I love not dealing with wires. The one thing — the initial full setup with the boundary walk took me a bit longer than twenty minutes because I have a lot of garden beds to route around. Not a real problem, just set expectations if your yard is complicated. Blades kit is handy.

Programmed the schedule once and the yard just stays cut. The spare blades that came with it are sitting in a drawer for when I need them. Best yard purchase I've made in years.

The mower and the spare-blade combo are exactly what I wanted for my small wooded yard. Docking a star only because the initial Bluetooth pairing dropped once and I had to redo it. After that first hiccup it's been dead reliable and cuts beautifully in the shade.

Love it overall. The one honest note: setup took me closer to 40 minutes than the 20 I expected, mostly me fussing with mower placement and the app. Not a big deal, and the LiDAR mapping under my sycamores has been flawless since. Blade kit's a nice touch to have squirreled away. Four stars, would buy again.

Barely hear it, and it doesn't miss patches. The spare blades came with it so maintenance is sorted for the year.

Live on a heavily treed lot and assumed no robot mower could handle it. This one does, thanks to the LiDAR. It's the first one that didn't need me to babysit it. Blade kit was a smart inclusion — I'll be glad to have them when the current set wears.

I used to lose a Saturday to mowing. Now I lose nothing. The thing handles the shady back third that used to confuse every gadget I bought, and keeping a spare blade set on hand means I'm not caught off guard mid-summer. Best money I've spent on the house in a while.

My yard is far from flat and has a wooded strip, and the finish is still uniform. Wire-free was the selling point; the included blades were the practical bonus that means I'm not reordering come August.

The mower itself is fantastic and the shade tracking is real. My only gripe is the app pairing didn't catch on the first attempt — had to toggle Bluetooth and restart the app before it connected. Once it did, everything worked smooth. Blade swap kit is a nice bonus to have out of the gate.

Mom's yard is small but full of shade from the neighbor's trees and she couldn't keep up with it anymore. The S4 handles the shade with the LiDAR and runs itself. I grabbed the blade kit so she's not calling me to order parts mid-season — she can just have a neighbor pop a fresh blade in, it's that simple. She's thrilled and I stopped worrying.

Blades pop off by hand, no screwdriver. Cut stays sharp. Easy yes.

Really happy with it overall. The included spares are great but I mow a full quarter acre with some rough spots near the driveway and I can already tell I'll want another set by next year. Cut quality is excellent and setup was painless. Just planning ahead — one spare kit feels a little light for how much this thing runs.

Half our property is under pine and the shade used to defeat every GPS-based mower I demoed. The S4 and its LiDAR just work under the trees, plain and simple. I bought the blade kit alongside it and I'm glad — keeping the cut sharp on our thicker grass matters and I've got spares ready to rotate.

Set it up one Saturday and it's just been part of the yard ever since. Swapped to the spare blades once already and it took no time.

Clipped something hidden in the grass and dinged a blade in week three. Because the kit came with the mower I just swapped a fresh one in on the spot and kept mowing. No ordering, no waiting. That alone justified the bundle.

Mom's on a corner with big oaks and her old robot mower spent more time stuck than mowing. I picked the S4 with blades so she'd never have to source parts on her own. Set it up over a weekend visit — genuinely easy, no wire to bury — and she hasn't had a single stuck alert since. The spare blades mean I can swap them for her once a year and that's the entire maintenance plan.

I read every thread I could find before buying because my last robot mower literally drove into a flower bed when it lost signal under the pines. This one builds an actual 3D map so shade means nothing to it. A month in and it's flawless. The blades kit was the deciding factor between this listing and the bare unit — same mower, and I've got replacements ready. No brainer.

Retired last year and finally stopped paying a crew. The S4 handles my quarter acre quietly, and the spare blades that came with it mean I'm not calling anyone for maintenance either. Popped a fresh set in with no tools. Wish I'd done this ages ago.