Sunseeker S4 vs Worx Landroid L WR155
Quick take: The Sunseeker S4 skips the boundary-wire install entirely while the Worx Landroid L WR155 needs a perimeter wire laid but doesn't care about tree cover or satellite signal; the Worx Landroid L WR155 is rated for a larger lawn (0.5 acres); the Sunseeker S4 is rated for steeper ground (42%); the Worx Landroid L WR155 cuts taller (up to 3.5"), which matters for fescue and warm-season grasses.
| Spec | Sunseeker S4 | Worx Landroid L WR155 |
|---|---|---|
| Price | ~$999 | ~$999 |
| Rating | 4.74★ (307) | — |
| Navigation | LiDAR | Boundary Wire |
| Max Lawn Size | 10,890 sq ft (10,890 sq ft) | 0.5 acres (21,780 sq ft) |
| Max Slope | 42% (23°) | 30% (17°) |
| Cutting Width | 7" | 8" |
| Cut Height | 1.6"–3.2" | 1.5"–3.5" |
| Drive | RWD | RWD |
| Runtime | 90 min | — |
| Charge Time | 80 min | — |
| Noise | 60 dB | 59 dB |
| Weight | 26 lb | 25.8 lb |
| Obstacle Detection | 3D LiDAR with a 360 x 70 degree field of view plus Vision AI trained on 360+ object types; a reviewer watched it dodge a bulldog and a Wiffle ball. Bumper, lift and rain sensors as backup. | Bumper collision sensors plus lift and tilt stops; no camera or ultrasonic unless you add the ACS kit, so obstacles get nudged rather than avoided. |
| Edge Cutting | Yes | Yes |
| Rain Sensor | Yes | Yes |
| Cellular | No | No |
| Anti-Theft | PIN lock and lift alarm; GPS tracking only with the optional 4G-GPS module | PIN lock and lift alarm; GPS tracking only with the optional Find My Landroid module |
| Warranty | 2-year | 3-year limited |
Pros & cons
Sunseeker S4
- ✓No antenna, no wire: LiDAR maps and positions under tree canopy where GPS mowers drift
- ✓Auto-mapped a two-zone yard on the first try; the app shows the 3D LiDAR map it built
- ✓Reliably rerouted around a dog and a golf-ball-sized toy in a month-long test
- ✓Fits through 31.5 in passages and stores 100 zones across 5 maps
- ✓Cheapest LiDAR mower from an established brand, $500 under the Ecovacs O1000 LiDAR Pro
- ✗Blades sit 4.3 in inside the housing, so it leaves an uncut strip at every edge
- ✗7 in deck and 90 minute runtime mean a quarter acre takes several charge cycles
- ✗One review unit died after a night in standing water despite the IPX6 rating
- ✗GPS tracking needs the extra-cost 4G module
Worx Landroid L WR155
- ✓Lowest cost per acre of any name-brand half-acre robot, often near $1,000 or less
- ✓Widely stocked at big-box retailers, so returns and parts are easy
- ✓Floating blade disc self-levels over ruts and roots
- ✓Cut to Edge and rain delay are standard, not add-ons
- ✓Power Share battery doubles as a spare for other Worx tools
- ✗Roughly an hour per charge means a lot of dock trips on a full half acre
- ✗30% slope rating is the weakest in its price class
- ✗No obstacle avoidance beyond the bumper without the ACS kit
- ✗Wire install is a real afternoon-plus job and wire breaks are on you