Sunseeker Elite X3 Plus vs Sunseeker S4
Two robot lawn mowers side by side. All figures are what the makers claim (as of 2026-10-07), not test results. Where a number decides it, the better one is marked.
Specifications compared
| Figure | Sunseeker Elite X3 Plus | Sunseeker S4 |
|---|---|---|
| Lawn size it can handle | 12,917 sq ft (1,200 m²)Ahead | 10,764 sq ft (1,000 m²) |
| Slopes | Up to 30% | Up to 42%Ahead |
| List price | $1,599 | $1,599 |
| List price per 100 m² of lawn | $133Ahead | $160 |
| Noise | 59 dBAhead | 60 dB |
| Guidance | RTK+vision | 3D-LiDAR+vision |
| Wire-free | Yes | Yes |
| Needs a base station on the lawn | Yes | No |
| Cutting width | 22 cm | 18 cm |
| Drive | Not stated | rear-wheel drive |
| Battery | 5Ah | 20V 4Ah |
| Water protection | Not stated | IPX6 |
| Connectivity | Wi-Fi/Bluetooth/4G optional | Wi-Fi/Bluetooth (4G optional) |
"Ahead" marks the better figure for lawn size, slope, price per lawn size, list price and noise. The list price is the maker's, not a store's.
Which one suits you
Choose the Sunseeker Elite X3 Plus if
- Your lawn is bigger: it is rated for 1,200 m² against 1,000 m².
- You want faster mowing: a wider deck, 22 cm against 18 cm.
Choose the Sunseeker S4 if
- Your yard has steeper slopes: 42% claimed against 30%.
- You would rather not set up a base station on the lawn.
More: all comparisons, best-for lists, report a wrong figure.