Sunseeker X5
#10 in 1/4 to 1 acreFull review
For half-acre yards with real slopes, where its all-wheel drive beats two-wheel RTK mowers at a similar price. Flat lawns can do with a cheaper model.
Amazon $1,399.99 Sunseeker $1,499.99$1,399.99
The Sunseeker X5 is the better robot lawn mower overall, rated 3.9 to 3.6. The Sunseeker X5 leads on value and slopes. The Segway Navimow H220 wins on warranty. The Sunseeker X5 costs $799.01 less ($1,399.99 vs $2,199).
Segway Navimow H220
#16 in 1/4 to 1 acreFull review
For a half-acre yard with trees or buildings that block GPS. It adds a rain sensor and a wider cut over the i2 LiDAR.
Navimow $2,199$2,199
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Sunseeker X5 for value ($2,800 per rated acre vs $4,400 per rated acre) and slopes (60% (31°) slopes, all-wheel drive vs 45% (24°) slopes).
- Choose the Segway Navimow H220 for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 1/4 to 1 acre robot lawn mower; a clear win is highlighted. How we rank explains each one.
| Factor weight | Sunseeker X5 | Segway Navimow H220 |
|---|---|---|
| Overall rating | 3.9/5 | 3.6/5 |
| Value 30% | 71 $2,800 per rated acre | 36 $4,400 per rated acre |
| Navigation 20% | 80 RTK + vision, no boundary wire | 85 LiDAR + vision, no boundary wire |
| Slopes 20% | 64 60% (31°) slopes, all-wheel drive | 36 45% (24°) slopes |
| Features 15% | 75 6 of 8; no 4G, height set in the app | 100 7 of 7 |
| Warranty 10% | 33 2-year warranty | 67 3-year warranty |
| Noise 5% | 67 60 dB(A) rated | 67 60 dB(A) rated |
Specifications
| Sunseeker X5 | Segway Navimow H220 | |
|---|---|---|
| Coverage | ||
| Lawn size (rated) | 0.5 acres (21,800 sq ft) | 0.5 acres (21,800 sq ft) |
| Max slope | 60% (31°) | 45% (24°) |
| All-wheel drive | Yes | No |
| Run time per charge | - | 3 h 40 min |
| Charge time | - | 2 h |
| Battery | 5 Ah | 216 Wh, 21.6 V 10 Ah |
| Navigation | ||
| Navigation | RTK + vision | LiDAR + vision |
| Boundary wire needed | No | No |
| Obstacle avoidance | Binocular AI cameras + bumper | LiDAR + AI camera, 200+ obstacle types, bumper |
| Multiple zones | Yes | Yes |
| No-go zones | Yes | Yes |
| Cutting | ||
| Cutting width | 8.7 in (221 mm) | 8.7 in (220 mm) |
| Cutting height | 1.6–3.2 in | 2–4 in |
| Height adjustment | By hand (knob) | In the app |
| Blades | 3 pivoting blades on a floating cutting disc | 6 blades on an anti-clogging cutting disc |
| Edge mowing | Ride-on boundary cutting; store page says it cuts as close as 1.2 in to edges | EdgeSense edge cutting |
| Smart features | ||
| Connectivity | Wi-Fi, Bluetooth | Wi-Fi, Bluetooth, 4G (1 year of 4G included) |
| Rain sensor | Yes | Yes |
| Anti-theft | Optional 4G module with anti-theft tracking | - |
| Build | ||
| Noise (rated) | 60 dB(A) | 60 dB(A) |
| Water resistance | IPX5 | IP66 |
| Weight | 26.5 lb (12 kg) | 35.8 lb (16.2 kg) |
| Warranty | 2 years | 3 years |
| Released | - | 2026 |