What this is. We have not mowed a lawn with a Navimow. This is not a hands-on review. It is a synthesis of every independent test of these mowers we could find, cross-read against what Segway publishes. Which, in this case, is the story.
We keep a specification database of 66 robot mowers, and we leave a field empty when the manufacturer does not publish it rather than filling it with an estimate. That rule produces a ranking nobody sets out to make: Segway Navimow leaves more fields empty than any other brand we track.
On the i210 and i220 LiDAR Pro, its wire-free flagships at €1,599 and €1,999 list, the official product page states the lawn area and the slope rating. That is it. No battery capacity, no runtime, no charge time, no weight, no noise level, and not even the cutting width, which every competitor publishes and without which the mowers cannot be placed in a comparison table at all.
What testers measured that Segway does not state
| Specification | Segway publishes | Testers measured |
|---|---|---|
| Cutting width | nothing | 22 cm, on both the i210 and the i220 |
| Battery (i220) | nothing | 10 Ah |
| Runtime (i220) | nothing | 210 min per charge |
| Charge time (i220) | nothing | 120 min |
| Noise (i210) | nothing | 59 dB |
| Lawn area | 1,000 m² / 2,000 m² | consistent with testing |
| Max slope | 55% (29°) | consistent with testing |
Read the left column again. On a mower approaching €2,000, a buyer cannot find out from the manufacturer how wide it cuts or how long it runs. They can find out from a review site in the UK.
That 59 dB figure deserves attention for a different reason: if it holds, it makes the i210 one of the quietest mowers in our catalogue, well under the 62 to 65 dB of the Dreame and ECOVACS flagships. Segway has a genuinely good number here and is not publishing it.
What the tests actually praise
The silence is a shame, because the engineering reviews well.
Navigation is the strong point, consistently. The LiDAR Pro line fuses LiDAR, network RTK and camera vision, and testers describe the result as precise and orderly, with accurate mapping and no antenna to site. On the earlier i-series, VisionFence recognises objects like trees and adds them to the map on its own, cutting to within about 10 cm of a trunk.
It is quiet. This comes up across the range, not only in the 59 dB measurement.
Setup is genuinely easy. Assist Mapping builds the virtual boundary automatically, and the entry models are described as easy to install and well suited to small, flat suburban lawns.
Where it does not fit
Slopes. This is the clearest limit in the corpus. The i105 and i110 are rated 30%, the LiDAR Pro line 55%. Against the 80% of a Mammotion LUBA 3 AWD or a Dreame A3 AWD Pro, that is a different class of garden. Testers are explicit that properties with dense tree cover, slopes over 20% or complex layouts will struggle with the entry models.
Area. The i105 tops out at 500 m² in our data, the i110 at 1,000 m². These are suburban lawns, not estates, and the range is priced accordingly.
What the corpus does not cover
No independent long-term data on this generation, no measured figures at all for the i205 and i208 AWD, and nothing published on blade wear or battery degradation.
Our read
If your lawn is flat, suburban and you value quiet operation with a setup that takes an afternoon, the Navimow line tests well and the LiDAR Pro navigation is among the better implementations available.
But we would flag the transparency itself as a buying consideration, not a detail. A manufacturer that will not tell you the cutting width of a €1,999 mower is asking for a level of trust it has not earned in return. Every figure in the table above exists; Segway simply chose not to publish it, and independent testers had to fill in for them.
We have written to Segway asking for the missing specifications. If they answer, this page and our i210 and i220 spec sheets will be updated with the figures attributed to them, and we will say so here.