Check Before Purchase: 0.3 acres (13,000 sq ft) max mapping area. For grass under 3.5" and flat lawns (height difference under 1.2"). (Note: Not suitable for St. Augustine and dense Zoysia. Slope < 18°.) Hands-Free Auto Mapping: With precise positioning and distance measurement, E18 effectively maps your yard and plans the mowing path, which can be easily viewed on your smartphone. (Note: Subscribe to 4G data via the app for stable connectivity if your yard isn't fully covered by Wi-Fi.) Precise Obstacle Avoidance: E18's 3D perception system accurately detects obstacles, ensuring it avoids collisions in complex garden environments. Reliable Lawn Maintenance: E18 can achieve beautiful and uniform parallel cutting. Smart coverage detection system ensures no area is left uncut. Worry-Free Experience: E18 features GPS tracking to prevent theft. With easy app control and automatic recall during rainy or low-light conditions, it provides a seamless, worry-free experience. No Wires, No RTK, No Signal Issues: E15 utilizes pure vision FSD technology with highprecision cameras and intelligent algorithms, eliminating the need for wires or an RTK station. eufy E18 Robot Lawn Mower,Max 0.3 Acres,Wireless Robot Mower with Auto Mapping,Vision Navigation,Multi-Zone management,Robotic lawnmower for AI obstacle avoidance,APP Control,18°Slope,Cut Height1"-3"