Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Sunseeker Sunseeker X4 — residential: typical home lawns; 8-inch deck; battery (no fuel or engine maintenance)
- Kress Kress RTKⁿ ¼-acre robotic lawn mower — residential: typical home lawns; 8-inch deck; battery (no fuel or engine maintenance)
What’s different? The 5 differences that matter most, from the published figures.
- Sunseeker X4 has 6 blades; Kress RTKⁿ ¼-acre robotic lawn mower has 3 blades.
- Sunseeker X4 is rated for 0.30 acres (1,214 m²) of lawn; Kress RTKⁿ ¼-acre robotic lawn mower is rated for 0.25 acres (1,012 m²) of lawn, a 0.05 acres difference. The rated lawn area is the maker's figure under its own test conditions. Obstacles, slopes and complex shapes reduce it.
- Sunseeker X4 ships with a 5 Ah battery; Kress RTKⁿ ¼-acre robotic lawn mower ships with a 4 Ah battery, a 1 Ah difference. Amp-hours is stored energy at the pack's voltage. Run time also depends on load, so a bigger pack lasts longer under the same conditions, not a fixed time.
- Sunseeker X4 is rated for slopes to 45%; Kress RTKⁿ ¼-acre robotic lawn mower is rated for slopes to 40%, a 5 points difference. The slope rating is the maker's limit for safe operation, not a measure of performance.
- Sunseeker X4 cuts from 1.6 in (41 mm) to 3.2 in (81 mm); Kress RTKⁿ ¼-acre robotic lawn mower cuts from 1.6 in (40 mm) to 3.5 in (90 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
what isn’t comparable
Not comparable
- Voltage: not published for Sunseeker X4.
- Fuel Type: not published for Sunseeker X4.
- Price: Sunseeker X4 is dealer quote only.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | Sunseeker X4 Sunseeker · Robotic |
Kress RTKⁿ ¼-acre robotic lawn mower Kress · Robotic |
|---|---|---|
| List price | dealer quote | $1,051 |
| Engine | ||
| Power Source | battery | battery |
| Fuel Type | — | Li-Ion |
| Electrical | ||
| Voltage | — | 20 V |
| Battery Capacity | 5 Ah | 4 Ah |
| Deck | ||
| Cutting Width | 7.9 in (201 mm) | 7.9 in (200 mm) |
| Min Cut Height | 1.6 in (41 mm) | 1.6 in (40 mm) |
| Max Cut Height | 3.2 in (81 mm) | 3.5 in (90 mm) |
| Blades | 6 | 3 |
| Drive | ||
| Drive Type | Rear-Wheel Drive | — |
| Dimensions | ||
| Weight | 27 lbs (12.2 kg) | 26 lbs (12 kg) |
| Robotic | ||
| Work Area | 1214 ft2 | 1012 ft2 |
| Max Slope | 45 pct | 40 pct |
| Navigation | 360° 3D LiDAR + Vision AI (L - SLAM) | — |
| Noise Level | 60 db | 59 db |
| Rain Sensor | Yes | Yes |
| Theft Protection | — | Yes |
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.