Greenworks 40V mower review: low price, good rating, real battery convenience

Yes — the Greenworks 40V Cordless Lawnmower is worth buying if you want a compact cordless mower for a lawn up to 200m² and you already value battery-platform convenience.

At £205.98, with a 4.3/5 rating from 797 reviews, it sits at an appealing price point for a 40V mower. Right now, it's at its all-time lowest price, which is honestly pretty tempting.

What first impressions does it make?

The pitch is pretty simple: this is a 40V cordless rotary mower designed for medium-sized lawns up to 200m² on a single charge. That makes sense for lots of UK front and back gardens, especially where grass areas are modest, access is awkward, and dragging a cable around borders, sheds, and paths just feels like a headache.

The 35cm cutting width isn't massive, but it's practical for smaller to medium lawns. Sometimes, manoeuvrability matters just as much as speed, doesn't it?

What are the key features in practice?

The big selling point is the new generation lithium 40V 2Ah battery, which works with other Greenworks 40V tools. If you're hoping to build a shared battery system, that's a real plus—you won't need to buy separate chargers and packs for every tool.

Greenworks says the mower gives “all the power and performance of a petrol driven mower” but, let’s be real, that’s marketing talk. It’s not quite a petrol beast, but you do avoid the mess and noise.

The cutting setup is pretty sensible: 5 cutting heights from 25mm to 70mm and a 2-in-1 mulching or collection system. That range is handy in the UK, with spring growth that can be soft and fast, and summer dry spells when a higher cut helps reduce stress on the lawn.

The single-lever height adjustment is genuinely practical. The 18cm rear wheels help with bumps, edges, and uneven ground, which is something I always appreciate.

The bundle throws in a nice extra: 3 grass trimmer spools, each with 1.65mm double line and 4.8m per spool, for a total of 14.4m. These work with Greenworks G40LT, G40LTK2, G40LTK2X, 2101507, 2101507UA, and 2101507UC trimmers.

If you’ve already got one of those trimmers, that’s actually useful—replacement line is a recurring cost and, honestly, a bit of a pain.

How does it perform for real garden use?

Looking at the specs, this mower suits regular maintenance, not wild, overgrown grass. The 200m² single-charge claim is the key number here.

If your lawn is about that size and you cut often, it should do the job. But if your grass is dense, damp, or left too long between cuts, you’ll probably notice the battery runtime and cutting efficiency take a hit.

The 35cm deck means you’ll make more passes than you would with a wider mower. On the upside, that makes storage and handling easier.

For many UK gardens, especially those with narrow side returns or tight turns around beds, that’s actually a better compromise than wrestling a bulkier machine. The mower should also fit more easily in a small shed or garage than a petrol option.

Is it good value for money?

At £205.98, this Greenworks mower costs more than the two Flymo mains-powered alternatives here: the Flymo Speedi-Mo 360C at £114.74 and the Flymo Speedi-Mo 360VC at £109.99, both with a stronger 4.6★ rating.

But those are corded electric mowers, so you’re stuck with a mains cable. If you want cordless freedom, the comparison shifts to the Makita DLM382Z at £199.99, but that one comes without batteries and charger—which definitely changes the real cost.

That makes the Greenworks package more appealing if you want to get into the Greenworks 40V battery ecosystem and prefer an all-in-one mower with battery compatibility instead of a bare tool.

The current price being the lowest ever recorded doesn’t hurt either.

What should buyers be cautious about?

The main thing to watch is capacity: 200m² isn’t a huge area, so bigger lawns will need a wider mower or something with a longer runtime. The 35cm cutting width also means it’s not the fastest for larger spaces.

And while the product includes trimmer spools, that doesn’t change the fact that this is still a compact mower with a pretty modest battery spec.

Another point: if you’re coming from a powerful petrol mower and you’re used to hacking down thick, long grass, this isn’t the tool for heavy-duty clearance work. It’s a maintenance mower for regular cuts, not a brute-force machine.

How does it compare to the alternatives?

If you put the Flymo Speedi-Mo 360C (£114.74, 4.6★) and Speedi-Mo 360VC (£109.99, 4.6★) next to the Greenworks, you’ll notice the Greenworks costs a fair bit more. But hey, you’re getting cordless operation and flexibility with the battery platform.

The Makita DLM382Z (£199.99, 4.6★) sits a little higher in price, though it’s tool-only—so Greenworks feels like a more complete package since you get the battery system included. If you’ve already got other Greenworks 40V tools, that ecosystem just makes life easier, and honestly, it might make the price gap feel less important.

UK gardeners with small-to-medium lawns, who’d rather skip dealing with cables and want something that tucks away easily, will probably find this a practical choice. If you’re just after the lowest upfront price or the absolute top rating, those corded Flymo models probably look more tempting.