Quick Answer: Kress and Mammotion both sell wire-free robot mowers in 2026, but they optimized for different problems. The Kress KR174 covers 1.2 acres (1.7 max) with OAS obstacle avoidance for $2,699.99, using RTKⁿ network RTK that has never needed a property-mounted antenna. The Mammotion Luba 2 AWD starts around $1,599 and climbs slopes up to 80% (38%) thanks to all-wheel drive, with the top 10000 model covering roughly 2.5 acres, per Mammotion. Buy Kress for obstacle avoidance and a longer residential warranty; buy Mammotion for steep terrain and more coverage per dollar.
Kress and Mammotion arrived at wire-free navigation from opposite directions. Kress built RTKⁿ as a network service from the start — the correction signal comes from Kress’s own base stations, so the only hardware in your yard has always been the mower and its dock. Mammotion built its reputation on all-wheel-drive slope climbing first, and only caught up on the antenna-free front with its 2026 Luba 3 flagship. Here’s how the two actually compare model for model.
Kress vs Mammotion at a glance
| Factor | Kress | Mammotion |
|---|---|---|
| Navigation | RTKⁿ network RTK, no antenna on property (all models) | RTK GPS with antenna (Luba 2 AWD); Tri-Fusion LiDAR + NetRTK, no antenna (Luba 3 AWD) |
| Entry price | $1,699.99 (KR172, 0.5 acre) | ~$1,599 (Luba 2 AWD, comparable coverage) |
| Flagship price / coverage | $2,699.99 (KR174, 1.2-1.7 acres) | ~$2,399 (Luba 3 AWD 5000, ~1.25 acres, no antenna) |
| Obstacle avoidance | OAS on KR173/KR174 | Dual-camera AI vision on Luba 3 AWD only |
| Max slope | 40% (~22°) | 80% (38°/38.6°) — both Luba 2 and Luba 3 AWD |
| Warranty | 3-year residential / 2-year commercial | 2-year main body + battery / 1-year accessories |
| Top-tier coverage | 1.7 acres max (KR174) | ~2.5 acres (Luba 2 AWD 10000) |
| Track record | Positec's premium mower brand (also owns Worx) | Newer brand (since ~2022), CES 2026 Innovation Award (Luba 3) |
Kress: antenna-free from day one, OAS included
Kress KR174 (Mission RTKⁿ 1¼-acre with OAS)
- Covers a recommended 1.2 acres on a 48-hour cycle, up to 1.7 acres every 72 hours, per Kress.
- RTKⁿ navigation streams correction data from Kress's own base-station network — no reference antenna to mount, on any model in the lineup.
- OAS (Obstacle Avoidance System) steers around toys, furniture and beds instead of bump-and-turn — a feature Mammotion only offers on its top Luba 3 AWD trim.
- Backed by a 3-year residential warranty (2-year commercial), per Kress's official warranty table — a year longer on the core unit than Mammotion's 2-year term.
Letting a robot handle the yard frees up your Saturday — start a free Audible trial and queue up something to listen to while either mower does the work.
Full lineup and pricing across the whole Mission range in our Kress robot mower review.
Mammotion: steeper slopes, more coverage per dollar
Mammotion Luba 2 AWD
- RTK GPS positions to within ~2 cm (per Mammotion) — map the lawn by walking the edge once, though it still needs a property-mounted antenna.
- All-wheel drive climbs slopes up to 80% (38%), per Mammotion — double Kress's 40% residential ceiling.
- Top Luba 2 AWD 10000 covers roughly 2.5 acres on one map, well past Kress's 1.7-acre max.
- No dedicated obstacle-avoidance vision — that's reserved for the newer Luba 3 AWD.
See the full Luba lineup, including the antenna-free Luba 3 AWD, in our best Mammotion robot mower guide.
Head-to-head: who wins each category
- Obstacle avoidance: Kress. OAS on the KR173/KR174 actively steers around objects on every antenna-free model; Mammotion only matches that with the pricier Luba 3 AWD’s camera vision.
- Steep-slope handling: Mammotion. 80% (38°) on both AWD Lubas crushes Kress’s 40% residential ceiling — the single biggest gap in this comparison.
- Warranty: Kress. A 3-year residential term (2-year commercial) beats Mammotion’s 2-year main-body-and-battery coverage by a year.
- Coverage per dollar: Mammotion. The Luba 2 AWD 10000 covers ~2.5 acres versus Kress’s 1.7-acre max, at a similar or lower entry price.
- No-hardware-on-property navigation: Split. Kress’s RTKⁿ has been antenna-free across its whole line since launch; Mammotion only caught up with the 2026 Luba 3 AWD’s NetRTK.
- Innovation recognition: Mammotion. The Luba 3 AWD’s Tri-Fusion navigation (LiDAR + NetRTK + AI vision) won a CES 2026 Innovation Award.
Kress vs Mammotion by the numbers
- 80% vs 40%: Mammotion’s AWD slope rating versus Kress’s residential ceiling — the clearest technical edge either brand holds in this matchup.
- 2.5 acres vs 1.7 acres: Mammotion’s top Luba 2 AWD 10000 coverage versus Kress’s KR174 max, per each brand’s published specs.
- 3 years vs 2 years: Kress’s residential unit warranty versus Mammotion’s main-body-and-battery term, per each brand’s official warranty documentation.
- ~$800: Roughly how much less the Mammotion Luba 2 AWD costs than the Kress KR174 at comparable coverage, before factoring in OAS.
The bottom line
If obstacle avoidance and a longer residential warranty matter most, the Kress KR174 gets you a genuinely antenna-free RTK mower that steers around your yard’s clutter instead of bumping into it. If your lawn has real hills or you want more coverage for less money, the Mammotion Luba 2 AWD is the stronger buy — or step up to the Luba 3 AWD if you also want to skip the antenna. Full breakdowns in our Kress robot mower review and best Mammotion robot mower guide, or start with our best robot lawn mower pillar for the rest of the field. Comparing Kress against a different wire-free rival instead? See our Kress vs Husqvarna comparison.