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Usually ships in 1–6 business days, then 5–10 business days in transit
30-day returns, conditions apply. See return policy
$20 off orders of $200 or more with code WELCOME20 (one use per customer)
US-based support. Call or text (202) 800-0502
Take Back Your Weekends with the FJD FR4000 Robotic Lawn Mower
Built for serious acreage, the FJD FR4000 covers up to a full acre with industrial-grade RTK positioning. This isn't a toy—it's a professional-grade robotic mower for homeowners who demand precision on larger properties.
What Makes This Mower Different
- 1-Acre Coverage: Built for larger properties
- Industrial RTK GPS: Centimeter-level accuracy for professional results
- 65% Slope Capability: Handles steep hills with confidence
- No Boundary Wire: Virtual perimeter setup via app
- All-Weather Operation: Rain sensor and rugged construction
- Multi-Zone Support: Program different areas with different schedules
Technical Specifications
| Coverage | Up to 4,000m² (1 acre) |
| Navigation | Industrial RTK GPS |
| Cutting Width | 26cm |
| Max Slope | 65% (33°) |
| Runtime | Up to 180 minutes |
| Boundary | Virtual (no wire) |
What's Included
- FJD FR4000 mower
- RTK reference station
- Charging dock
- App guide
- User manual
Ideal For
Owners of larger properties (up to 1 acre) who want hands-off lawn maintenance with professional-grade precision. Ideal for sloped yards.
Free standard shipping on orders of $50 or more. Need help choosing? Contact us at support@chorebotic.com or (202) 800-0502.
Pairs well with

FJD FR4000 Robotic Lawn Mower
Product details
Why Shop With ChoreBotic
Real, US-based support
Call or text (202) 800-0502 (Monday–Friday, 11 AM–6 PM ET) or email support@chorebotic.com. A real person answers.
Help choosing the right model
Tell us your pool size, yard and slope, or floor plan and we'll point you to the model that fits, even when that's the cheaper one.
Business & multi-unit orders
Buying for several properties or a business? Contact us and we'll tell you what we can offer.
Warranty help
Warranty coverage comes from the manufacturer under its own terms. If something goes wrong, we'll help you file the claim.
A clear shipping timeline
Orders usually ship within 1–6 business days and then take 5–10 business days in transit. We email tracking as soon as your order ships.
Shipping
Processing time
Most orders ship within 1–6 business days. Orders ship directly from the manufacturer or from one of our supplier partners, so items in one order may arrive in separate packages. If there's a delay, we'll contact you right away.
Transit time
After your order ships, delivery usually takes 5–10 business days. You'll get an email with tracking as soon as it ships.
Shipping cost
Most orders of $50 or more ship free by standard ground. Some items, such as Xpece drone products, ship at UPS rates. The exact cost is always shown at checkout before you pay.
Large items
Robotic mowers and other large items may ship by freight with curbside delivery.
Assembly
Most robotic products need some setup. Contact us if you'd like details on a specific product before ordering.
Returns & Cancellations
Cancellations
You can cancel free of charge any time before your order ships. Contact us as soon as possible at support@chorebotic.com or (202) 800-0502.
Returns
You have 30 days from delivery to start a return. Contact us first for a return authorization and the correct return address. Changed-mind returns must be unused, in new condition, with all parts and the original packaging.
Return costs
- Defective or damaged on arrival: no cost to you. We cover return shipping and send a replacement or full refund.
- Changed your mind: a 15% restocking fee applies and you pay return shipping. The fee is waived if you exchange for a product of equal or greater value.
Damaged in transit
Email photos of the packaging and product within 48 hours of delivery and we'll arrange a replacement or refund.
Full details: Refund Policy.
