Product Description

The Sunseeker S4 is a wire-free robotic mower for lawns up to 0.25 acre that navigates with 3D LiDAR rather than satellite signals. Because it scans its surroundings to build a precise 3D map of the yard, it does not need a clear view of the sky, which makes it well suited to properties with large trees, heavy shade, tall structures, and narrow paths where GPS-based mowers can drift. LiDAR is fused with Sunseeker's AllSense Vision AI for obstacle recognition.

Key Features

  • 3D LiDAR navigation: scans more than 210,000 points per second with 172-channel laser precision, a 360° × 70° detection angle, and a detection range of about 164 ft (50 m) for centimeter-level positioning
  • AllSense Vision AI fusion: AI-assisted camera sensing combined with LiDAR (L-SLAM + V-SLAM), processed on a 10 TOPS chip that Sunseeker rates at twice the power of its previous chip
  • Wire-free setup: no perimeter wire and no RTK antenna; map the yard in minutes by guiding the mower around it in the app
  • Obstacle avoidance: 360° detection using LiDAR, AI vision, and a floating bumper, designed to steer around pets and yard debris
  • Terrain handling: rear-wheel drive with off-road wheels climbs slopes up to 42% (22°), rolls over small obstacles up to 1.4 in (3.5 cm), and fits through passages 31.5 in (80 cm) wide or more
  • Cutting options: a floating cutting disc that follows the turf, ride-on-edge and edge-reach cutting, spot mowing, and custom, checkerboard, or crisscross mowing patterns
  • Automatic recharging: returns to the charging station when the battery drops below 30%, by a direct path, along the edge, or via a smart return route
  • App and smart home: Sunseeker app for scheduling, personalized cutting settings, and multi-map management with up to 100 zones; works with Alexa and Google Assistant and receives over-the-air updates
  • Built for outdoor use: IPX6 water resistance, rain sensor, low-noise operation at 60 dB(A) or less, and GDPR data protection
  • Optional security: a 4G-GPS anti-theft module is available separately

Specifications

  • Recommended lawn size: Up to 0.25 acre
  • Navigation: 360° 3D LiDAR + AI vision (L-SLAM + V-SLAM)
  • Camera: Monocular
  • Antenna required: No
  • Obstacle avoidance: 360° 3D LiDAR + AI vision + bumper
  • Drive: Rear-wheel drive
  • Maximum slope: 42% (22°)
  • Cutting width: 7 in
  • Cutting height: 1.6–3.2 in (manual adjustment)
  • Cutting speed: 1.48 ft/s
  • Battery: 20 V lithium, 4 Ah
  • Charger: 3 A
  • Noise level: 60 dB(A)
  • Water resistance: IPX6
  • Display: LED
  • Multi-zone: Up to 100 zones
  • Connectivity: Wi-Fi / Bluetooth
  • 4G module + anti-theft: Optional
  • Voice assistants: Alexa or Google Home
  • Dimensions: 25.1 × 16.6 × 10.8 in (638 × 422 × 274 mm)
  • Weight: 26 lb

What's in the Box

  • Robotic lawn mower (1)
  • Charging station (1)
  • Charger (1)
  • Blades (12)
  • Screws (12)
  • Nails for charging station (8)
  • Towel (1)
  • Cleaning brush (1)
  • LiDAR protective cover (1)

This Sunseeker mower is covered by a 2-year limited warranty on the mower body and charging station, and a 1-year limited warranty on the battery. For full terms or to file a claim, visit our Warranty Policy page or contact support@oakbayoutdoors.com.

Condition: New

Brand: Sunseeker | Model: S4 | SKU: SKRMS4

Shipping & Delivery

  • Free standard shipping to the contiguous United States and Washington, D.C. We do not currently ship to Alaska, Hawaii, Puerto Rico, or internationally.
  • Handling time: 1–2 business days. Orders placed before 5:00 PM Central Time on a business day begin processing that day.
  • Transit time: 3–5 business days. Estimated total delivery: 4–7 business days from the date your order is placed.
  • Tracking information is emailed once your order ships, and shipments are insured against loss or damage.
  • Delivery times are estimates and may be affected by weather or carrier delays. Large or heavy items may ship via LTL freight; freight is included in the listed price.

Returns & Refunds

  • Return window: 30 days from delivery.
  • Change-of-mind returns: Item must be new, unused, and in original packaging with all accessories. A 25% restocking fee applies and the customer pays return shipping.
  • Defective, damaged, or incorrect items: Accepted in any condition with photos or video. No restocking fee, and we cover return shipping.
  • Refunds are issued to the original payment method within 7 business days after we receive and inspect the return.
  • Cancellations: Cancel any time before your order ships at no cost.
  • To start a return, email support@oakbayoutdoors.com or call +1 (985) 260-8691 (Mon–Fri, 9 AM–5 PM Central). See our full Return and Refund Policy.
  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
T
Ty S.
Makes Lawn Care Effortless

Works great. Sunseekers robotic mowers are an interesting option for anyone looking to automate regular lawn cutting.

C
Carly D.
Exactly What I Was Looking For.

The hands-off approach is the biggest appeal to me, I set up the mower and let it take care of routine mowing!

  • TerraMow V1000 Robotic Lawn Mower

    TerraMow V1000 Robotic Lawn Mower

    Regular price $1,099.00
    TerraMow V1000 Robotic Lawn Mower

    TerraMow V1000 Robotic Lawn Mower

    Regular price $1,099.00
    View details