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Electric lawn mower buying guide

Updated: October 2026

You are replacing a hover, a tired corded rotary, or a petrol mower, and the search says 40 cm. On the twelve amazon.co.uk listings in the [electric lawnmower 40 cm comparison](/hub/lawn-and-garden-equipment/electric-lawnmower-40cm), captured on 19 October 2026, that figure is the class people type, not the width on every title. Only the Bosch AdvancedRotak 40-650 and the LawnMaster MEB1840M-01 state 40 cm. This electric lawn mower buying guide puts width first, then the lead or the pack, then the box and the roller. A purchase through our links may earn a commission at no extra cost to you.

You are replacing a hover, a tired corded rotary, or a petrol mower, and the search says 40 cm.

Our top picks

Flymo Flymo Speedi-Mo 360C

Best overall

Flymo Flymo Speedi-Mo 360C
9.2/10about £110
View offer
Flymo Flymo 38 cm corded

Rank 2

Flymo Flymo 38 cm corded
8.8/10about £135
View offer
LawnMaster LawnMaster MEB1840M-01

Alternative

LawnMaster LawnMaster MEB1840M-01
8.2/10about £146.99
View offer
On this page
  1. 1.What 40 cm means on these listings
  2. 2.Match width to the lawn
  3. 3.Cord, battery, and the plug
  4. 4.Box, mulch, and roller

What 40 cm means on these listings

A Currys page for the LawnMaster name showed about £159 and 12 m. The amazon.co.uk row is a different offer: about £146.99 and a stated 10 m lead. Do not merge them into one specification. Widths here are 22 cm (swift), 32 cm (Bosch EasyRotak), 33 cm (Litheli and the Ryobi bare tool), 36 cm (Flymo Speedi-Mo), 37 cm (Einhell GC-EM and Worx), 38 cm (Flymo and Hyundai), 40 cm (AdvancedRotak and LawnMaster), and 43 cm (Einhell GE-CM kit). A 22 cm or 32 cm machine can suit a tiny patch. It is not a 40 cm mower because it shares the search.

Match width to the lawn

The English Garden’s rough guide, their note and not a test of these ASINs, puts about 30–35 cm on lawns up to about 250 m², about 35–43 cm on about 250–580 m², and about 43–55 cm above that. A long garden with steps can want a narrower deck than the square metres suggest. Seller area lines do not follow those bands. The Einhell GC-EM 1600/37 is 37 cm and says up to 700 m². The Hyundai HYM3800E is 38 cm and says about 225 m². Quote them as claims. A 37 cm mower does not become a large-lawn machine because a bullet prints 700. If the title must say 40 cm, only two rows qualify, and the AdvancedRotak is 4.0 from 99 reviews at about £209.94.
Flymo Flymo Speedi-Mo 360C

Testsieger

Flymo Flymo Speedi-Mo 360C
9.2/10about £110
View offer

Cord, battery, and the plug

A 10 m lead is stated on the Einhell GC-EM 1600/37, the Hyundai, the LawnMaster, and the Flymo 38 cm. Reviews call that short. The Speedi-Mo does not print a length. Cordless removes the lead and adds a pack. The Worx WG737E at about £229 includes two 20 V 4.0 Ah packs and a charger. The Einhell GE-CM 43 Li at about £239.94 includes two 4.0 Ah packs and two fast chargers. The Ryobi OLM1833B at about £160.20 excludes the battery and the charger. Several Einhell 43 cm reviews report a two-pin charger rather than a BS 1363 plug. The corded or cordless page is the next decision.

Box, mulch, and roller

Stated collectors run from 31 litres on the EasyRotak highlight to 63 litres on the Einhell 43 cm kit. The Speedi-Mo describes a box and does not state litres. Mulch wants frequent cuts and short clippings. The Einhell 37 cm bullets do not state a mulch plug. A rear roller is stated only on the Hyundai HYM3800E and the LawnMaster MEB1840M-01. A Flymo 38 cm review mentions a replacement roller. That is not the Flymo spec. If stripes are why you are shopping, use the rear roller page. The AdvancedRotak item weight prints as 1 kg. Leave it. The Flymo 38 cm dimension cell prints 505 x 172.1 x 395 cm, which is not a mower size.

Common questions

What cutting width do I need?
Use the English Garden bands as a guide: about 30–35 cm up to roughly 250 m², about 35–43 cm for roughly 250–580 m², and wider above that. They are that magazine’s rough guide, not a measurement of your garden. A narrow side return can want less deck than the square metres suggest.
Is a 22 cm or 32 cm listing a 40 cm mower?
No. The swift states 22 cm and claims up to 50 m². The Bosch EasyRotak states 32 cm in the name and the highlight. Both can suit a tiny patch. They do not become 40 cm mowers because the search was for that class. If the title must say 40 cm, the only rows here are the AdvancedRotak 40-650 and the LawnMaster MEB1840M-01.
How long a lead should I expect?
Four listings state 10 m: the Einhell GC-EM 1600/37, the Hyundai HYM3800E, the LawnMaster MEB1840M-01, and the Flymo 38 cm. Reviews call that short. The Speedi-Mo and the AdvancedRotak do not print a length. A Currys page for the LawnMaster name showed 12 m at a different price. Use the amazon.co.uk row you are buying, and do not plug one extension into another.
Does the price include a battery and a UK charger?
Only if the listing says so. Worx and the Einhell 43 cm kit include two 4.0 Ah packs and charging kit. The swift includes a 2.0 Ah pack and a fast charger. The Litheli states a 5.0 Ah pack and does not name a charger. The Ryobi excludes both. Several Einhell 43 cm reviews report a two-pin plug, so you still look for BS 1363.
Do I need a rear roller?
Only if you want stripes. A rear roller is stated on the Hyundai and the LawnMaster, and nowhere else in this folder. It adds drag on a push mower. If you only want the grass shorter, a wheeled rotary without a roller is the lighter job. A Flymo review that mentions a roller is not a Flymo specification.

Related pages

Best electric lawn mower 40cm

Electric lawnmower 40 cm

Corded vs cordless lawn mower: a lead or a battery

How to use an electric lawn mower: cable and blade

Electric lawn mower with rear roller: two listings

Sources

Sources from the research digest. Listings were captured on amazon.co.uk on 19 October 2026.

  1. Electrical Safety First: lawnmowers (retrieved 19 October 2026)
  2. Electrical Safety First: garden (retrieved 19 October 2026)
  3. RHS: electricity in the garden (retrieved 19 October 2026)
  4. RHS: mowing (retrieved 19 October 2026)
  5. GOV.UK: outdoor noise (retrieved 19 October 2026)
  6. legislation.gov.uk: outdoor noise, Schedule 3 (retrieved 19 October 2026)
  7. The English Garden: corded and electric lawn mowers (retrieved 19 October 2026)
  8. Gardeners' World: electric lawn mowers (retrieved 19 October 2026)