For half-acre yards with real slopes, where its all-wheel drive beats two-wheel RTK mowers at a similar price. Flat lawns can do with a cheaper model.
Amazon $1,399.99 Sunseeker $1,499.99The Sunseeker X5 is the better robot lawn mower overall, rated 3.9 to 3.0. The Sunseeker X5 leads on navigation and slopes. The Worx Landroid L 1/2 Acre (WR155) wins on warranty. The Sunseeker X5 costs $100 less ($1,399.99 vs $1,499.99).
For owners of simple lawns up to 1/2 acre who don’t mind installing a perimeter wire and want a mower that runs on Worx PowerShare batteries.
Worx $1,499.99Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Sunseeker X5 for navigation (RTK + vision, no boundary wire vs Boundary wire) and slopes (60% (31°) slopes, all-wheel drive vs 30% (17°) slopes).
- Choose the Worx Landroid L 1/2 Acre (WR155) for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 1/4 to 1 acre robot lawn mower; a clear win is highlighted. How we rank explains each one.
| Factor weight | Sunseeker X5 | Worx Landroid L 1/2 Acre (WR155) |
|---|---|---|
| Overall rating | 3.9/5 | 3.0/5 |
| Value 30% | 71 $2,800 per rated acre | 67 $3,000 per rated acre |
| Navigation 20% | 80 RTK + vision, no boundary wire | 10 Boundary wire |
| Slopes 20% | 64 60% (31°) slopes, all-wheel drive | 9 30% (17°) slopes |
| Features 15% | 75 6 of 8; no 4G, height set in the app | 60 3 of 5; no 4G, height set in the app |
| Warranty 10% | 33 2-year warranty | 67 3-year warranty |
| Noise 5% | 67 60 dB(A) rated | 73 59 dB(A) rated |
Specifications
| Sunseeker X5 | Worx Landroid L 1/2 Acre (WR155) | |
|---|---|---|
| Coverage | ||
| Lawn size (rated) | 0.5 acres (21,800 sq ft) | 0.5 acres (21,780 sq ft) |
| Max slope | 60% (31°) | 30% (17°) |
| All-wheel drive | Yes | No |
| Battery | 5 Ah | 20 V 5 Ah |
| Navigation | ||
| Navigation | RTK + vision | Boundary wire |
| Boundary wire needed | No | Yes |
| Obstacle avoidance | Binocular AI cameras + bumper | - |
| Multiple zones | Yes | Yes |
| No-go zones | Yes | - |
| Cutting | ||
| Cutting width | 8.7 in (221 mm) | 8 in (203 mm) |
| Cutting height | 1.6–3.2 in | 1.5–3.5 in |
| Height adjustment | By hand (knob) | By hand (knob) |
| Blades | 3 pivoting blades on a floating cutting disc | 3 blades on a self-leveling disc |
| Edge mowing | Ride-on boundary cutting; store page says it cuts as close as 1.2 in to edges | Cut-to-Edge border cutting |
| Smart features | ||
| Connectivity | Wi-Fi, Bluetooth | Wi-Fi, Bluetooth |
| Rain sensor | Yes | Yes |
| Anti-theft | Optional 4G module with anti-theft tracking | - |
| Build | ||
| Noise (rated) | 60 dB(A) | 59 dB(A) |
| Water resistance | IPX5 | - |
| Weight | 26.5 lb (12 kg) | 25.8 lb (11.7 kg) |
| Warranty | 2 years | 3 years |
