Just set up a Segway Navimow i105e
We only have 2 small lawns, one is 55-60m2, the other 30-35m2 and I wanted something that you can define both areas and pathways between, also storing the charging base out the way on the patio, so vision/gps based mowers seemed a good idea (if not much more expensive).
I was toying up the Mammotion Yuka, but for the £1450 starting price (£2150 if you get the full package), and the size of lawns, the fairly newly released Navimow seemed the right VFM and is reviewing very well, even against the Luba2.
It's an RTK/Vision based platform and has a nice ride on boundary feature that should be ideal for our part grass/patio and grass/brick edging.
Setup was a breeze, the RTK GPS antenna I attached to a fence post with pipe clips rather than the supplied ground spikes, then just powered it all up and setting a boundary was as easy as just driving it around the lawns, defining pathways between lawns and the base and that's it.
I only realised how you are supposed to do the 'ride on boundary' mapping after I'd set it off mowing, so that will need to be done next time.
Even though the mower had < 50% battery by the time I'd mapped it a couple of times and messed around, so sent it out doing it's first cut of 20mm on the basis I'm away for a week now, so needed it cut fairly short. The mower did most of it, but at 15% battery, returned to base, charged and headed back out..
Just based on the first cut:
Positives:
+ Easy setup, the firmware update and mapping was painless.
+ Effectively silent except the noise of blade cutting the grass.
+ The vision system is impressive, the Mrs had washing hanging up and we use two small temporary poles to support the line if we are doing a large load, the mower had no issues cutting close to them but avoiding touching them.
+ Despite thinking it's low on battery, it did the right thing, tootled back to based, charged and went back out, then came back to charge!
+ The pathway feature is part of the reason for buying it, having it navigate a defined path around the patio to the other grass and back to the charger is great.
+ No issues having the charger on the patio hidden by the side of a storage box. I just used a cheap rubber mat underneath and cable-tied the base to it and it seems well planted.
+ The min cut height of 20mm is good, despite having already cut the grass to the same 20mm of our corded Bosch, the (presumably) shorter wheelbase meant it cut the grass more evenly.
+ The size is perfect, very compact.
+ The wheels are excellent, the castor wheels are at the rear and the rubber treads etc make it very capable going over some bumpy bits/bricks edging and slate sections getting to the patio.
Negatives
- It wasn't clear that you need to define the boundary type when mapping, so I have a 10cm uncut bit of grass around the border at the moment, and you can't edit it afterwards since you select the boundary type and remote control the mower exactly as you want it to ride on that boundary, so can only be done with a full re-mapping.
- Minor niggle with most 'connected devices', but its 2.4Ghz WiFi only, which I have some (unexplained) dead spots. the closest AP (outdoors) has a single storey extension roof/one wall to get through and I have plenty of 5ghz signal strength from it on my phone but only 33% signal on 2.4g if I put my phone were the charging station is. I have other IOT devices outside that also struggle on that side of the garden for the same reasons, ideally in this day/age having 5Ghz wifi would be helpful just to give me some flexibility.
- Battery is more than enough for us, but it seems obvious there is no way 500m2 on a single charge is remotely feasible.
[edit] OK, 30 seconds on google and it seems mowers are rated on their mowing area per day and multiple charges are expected.. Over on Reddit a rep said it's rated for 60 mins of mowing which is approx 100m2+, so that ties in!
The RRP is £949, but £50 voucher and 4% cashback meant it cost £861, which is expensive for just a 'mower' but for what it offers, it seems good..