Stiga
Stiga A 15v
- Autonomy
- IVEnvironmental
- Score
- 71/100Strong
- Readiness
- Ready Now
- Price
- Not tracked
ComparisonStiga A 15v and Yarbo M20
Yarbo
Yarbo M20
- Autonomy
- IVEnvironmental
- Pre-release
- 75/100Promising
- Readiness
- Not assessed
- Price
- Not tracked
Up to three
Autonomy Ladder
- IManual
- IIAssisted
- IIIConditional
- IVEnvironmental
- VGeneralized
All robot lawn mowers. Every figure below is placed against the whole class, so a gap can be read against how much the class itself varies.
Where each one suits you.
The conditions each robot was assessed against, side by side. Rows marked in gold are where these machines genuinely differ.
| Condition | Stiga A 15v | Yarbo M20 |
|---|---|---|
| Yard size | ||
| Under ¼ acre | GoodA hands-on review recommends it specifically as a good choice for smaller gardens, well inside its 16,146 sq ft rated ceiling. | GoodYarbo rates up to 1.5 acres a day, far more than a small lot needs. |
| ¼ – ½ acre | Good16,146 sq ft of rated coverage, run across up to 20 zones, comfortably reaches into this bracket. | GoodLawns of this size sit well inside the 1.5 acres a day Yarbo rates. |
| Over ½ acre | DependsThe independent test names it a good choice for smaller gardens; the 16,146 sq ft ceiling sits below this range's upper end. | DependsRated to 1.5 acres a day with recharging, but no delivered unit has been checked against it. |
| Terrain | ||
| Mostly flat | Good45 percent slope handling gives comfortable headroom over flat, level ground. | GoodFlat lawns sit far inside the tracked chassis's 70% slope rating. |
| Gentle slopes | GoodA 45 percent slope rating is high for a camera-navigated mower this size, well suited to gentle hillside sections. | GoodTracks and a rated 70% slope are built for rolling yards, per Yarbo. |
| Steep / hilly | Depends45 percent is the rated ceiling, and no independent test of steep-slope performance exists for this new model yet. | DependsThe 70% slope rating is a maker claim that no independent test has checked before delivery. |
| Grass type | ||
| Typical lawn grassthey differ | GoodThe striped mowing pattern one reviewer observed, with no strips left standing, is built around typical turf grass. | DependsCutting width is unpublished and sources disagree on the cutting height range. |
| Mixed / tall growth | DependsNo coverage evidence addresses mixed or overgrown growth specifically; the striped pattern is documented on regular turf grass only. | DependsThe cutting height ceiling is reported as about 4 in, but sources disagree on the low end. |
| Thick (Bermuda / Zoysia) | DependsAn 18 cm cutting width with no documented blade-power figures means more passes across dense Bermuda or Zoysia growth. | DependsNo motor or blade details exist yet to judge dense turf. |
| Boundary setup | ||
| Wireless required | GoodSTIGA Vista pairs a camera with GPS-RTK to register the perimeter in-app, with no wire or antenna to install. | GoodYarbo describes wire-free NetRTK positioning with no outdoor base station. |
| Wire required | PoorThere is no wired boundary option; the perimeter is registered entirely through camera and RTK positioning in the app. | PoorYarbo says the M series uses no traditional boundary wires. |
| No preference | GoodBoundary setup is wire-free regardless of preference, registered through the app with no antenna or wire to bury. | GoodWith no boundary preference, NetRTK setup needs no wire, taking about 30 minutes per Yarbo. |
A robot being poor for a condition is a fact about fit, not a fault. “Depends” means the record names a limit worth reading, not that the answer is unknown.
How far apart is a long way?
A number only means something next to the spread it sits in. Each track is the real range across every classified robot in the class, with the median marked.
Runtime110 with a published figure
120 min110 min
- Stiga A 15v120 min
- Yarbo M20110 min
30 minmedian 105 min240 min
Not compared, because fewer than two of these robots carry a published figure: Price, Charge time, Noise, Weight, Height.
What the numbers leave out.
Written on each record, and the only thing here every robot on the site carries.
The trade-off
What each design gives up to be good at what it is good at.
Stiga A 15v
Camera-plus-RTK positioning removes the wire and the RTK antenna’s clear-sky requirement, but deep shade and low-sun performance have no published record for this camera-led system.
A direct hands-on review calls the striped cut pattern optimal and complete, yet also recommends it specifically for smaller gardens, a narrower endorsement than its 16,146 sq ft rating implies.
Ten years of included connectivity removes a subscription obligation most 4G-connected mowers carry, though the machine is only five months into a field record too short to establish a reliability pattern.
Yarbo M20
One tracked Core covers four seasonal jobs, and every module after the mower arrives on its own later schedule.
A 70% slope rating on tracks is the claim; no delivered unit has been tested against it.
Who each one is wrong for
Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.
Stiga A 15v
- Lawns over roughly 16,000 square feet
- The independent test recommends it specifically for smaller gardens, and the rated ceiling of 16,146 sq ft sits well under larger properties' actual needs in a single charge cycle.
- Deeply shaded yards or heavy tree cover
- Camera-led navigation has no published behavior for deep shade or low sun, and no independent record exists yet for how it performs when a camera is starved for light.
- Buyers wanting a proven multi-year reliability record
- Launched in March 2026, the field record runs under five months, and no independent failure pattern of any kind has had time to accumulate for this specific model.
Yarbo M20
- Buyers who need a mower this season
- Backer deliveries have not begun; BackerGuardian reports mower bundles slipped to mid-September 2026 and snow blower bundles to mid-November.
- Buyers wanting a retail purchase with a store return policy
- The M20 has so far been sold only through Yarbo's Kickstarter campaign, with no retail listing found.
- Owners who need a published cutting width
- Yarbo has not published the M20's cutting width, and sources disagree on its cutting height range.
- Owners who want independent results first
- No outlet has described the final M20 mowing a lawn; coverage so far rests on Yarbo's campaign and IFA material.
What stays your job
The upkeep ownership hands back to you, whatever the autonomy level says.
Stiga A 15v
- Weekly: Clean the blades and check their efficiency, replacing any that are bent or worn (12-blade kit, art. 1127-0009-01); STIGA’s table sets this at weekly or every 50 operating hours.
- Weekly: Clean oxidation off the recharging contacts and wipe the camera module lens with a soft cloth only; brushes, scrapers and solvents scratch the glass.
- Monthly: Clean the whole mower with a sponge, lukewarm water and neutral soap (never a pressure jet), and have the charging base and power cables checked for wear; documented as monthly or every 100 operating hours.
- Annually: Carry out the servicing at an authorized service centre; STIGA states malfunctions traced to a skipped annual service are not covered under warranty.
- Seasonally: For winter, run the app’s hibernation wizard to register the pre-storage charge (required for the battery warranty), remove the safety key, and store the mower horizontal, dry and protected from ice; recharge at least every 6 months in storage.
- As needed: Battery replacement goes through STIGA technical assistance staff, not the owner; contact a service centre when working range shrinks.
Yarbo M20
- Seasonally: Swap the mower module for the snow blower or leaf module as the season changes.
- As needed: Replace mowing blades once Yarbo publishes intervals for the M20 mower module.
- Monthly: Clear grass and debris from the tracks and the underside of the mower module.
- As needed: Wipe the AI vision camera lenses.
How much each of these is standing on.
Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.
| Robot | Evidence status | Sources reviewed | Last assessed |
|---|---|---|---|
| Stiga A 15v | Provisional | 3 | Sep 2026 |
| Yarbo M20 | Pre-Release | 2 | Sep 2026 |
Evidence status counts the sources behind a classification, not their kind. A high count can be maker documentation and price coverage, so read it as how much was reviewed rather than as independent testing. How we weigh evidence.
Keep going.
The full recordStiga A 15vSpecifications, evidence, the Fit Check in full, and every tracked change.The full recordYarbo M20Specifications, evidence, the Fit Check in full, and every tracked change.Robovations classifies robots; it does not rank them. Nothing on this page is a recommendation, and no manufacturer influences a classification or its placement here.
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