ECOVACS GOAT G1 vs Segway Navimow i108E: Two $1,299 Mowers, One Winner The mid-range robotic mower segment is the most competitive in 2026, and these two models are the headliners. Both retail at $1,299 . Both cover medium-sized yards. Both are wire-free. But they take very different approaches to navigation and design. Here's how they actually compare. Coverage Area The ECOVACS GOAT G1 covers 20,000 sq ft (0.46 acres). The Segway Navimow i108E covers 32,000 sq ft (0.75 acres). At the same price, the Segway gives you 60% more coverage . If your yard is over 0.5 acres, the Navimow is the only choice here. Navigation Technology This is where they diverge most: ECOVACS GOAT G1: Lidar + Camera TrueMapping — uses the same sensor fusion technology from ECOVACS' market-leading robot vacuums. Creates a detailed 3D map of your yard. Segway Navimow i108E: EFLS (RTK + IMU + Odometry) — GPS-based positioning with multiple sensor redundancy. More coverage-efficient in open spaces. In practice, the GOAT G1's Lidar gives it an edge around complex obstacles (garden beds, trees, furniture) while the Navimow's RTK is better for open, expansive areas. For a typical suburban yard with some landscaping, the GOAT G1's obstacle avoidance is slightly more refined. Slope Handling ECOVACS GOAT G1: 35% vs Segway Navimow i108E: 32% . Close, with a slight edge to ECOVACS. Both handle moderate hills without issues. Neither is suitable for steep terrain — look at the hill specialists for that. Noise Level and Runtime The Navimow i108E is one of the quietest mowers available — operating at around 54 dB. The GOAT G1 runs at approximately 58 dB. Both are quieter than a normal conversation. For neighborhoods with close houses or if you want to mow at night, the Segway has the edge. App Experience Both have excellent apps. ECOVACS benefits from years of refinement across their robot vacuum line — the app is polished and intuitive. Segway's Navimow app has improved substantially and offers detailed zone management. Tie — both are above average. Our Verdict Buy the Segway Navimow i108E if: Your yard is 0.5-0.75 acres, you want maximum coverage per dollar, or you prioritize quiet operation. Buy the ECOVACS GOAT G1 if: Your yard is under 0.5 acres with lots of obstacles and landscaping features, and you want the best obstacle avoidance at this price. For most buyers, the Navimow i108E's 60% greater coverage at the same price makes it the better value. The GOAT G1 wins on obstacle detection but gives up a lot of coverage to do it. View ECOVACS GOAT G1 → | View Navimow i108E → | Compare side-by-side →