Best strimmer 2021: the best trimmers and lawn edgers for your lawn, borders and weeds

Zim zimmer! Who got the keys to the best strimmers? We do, as it happens…

Best strimmers 2021
(Image credit: Ryobi)

Not many people know this but "strimmer" is actually a 1970s portmanteau of “string” and “trimmer”, which gave us some fun new words to play with: he strims; she has strimmed; they are strimming; these are the best strimmers.

And with summer now here owning a quality strimmer can make a huge difference to how your garden and lawn looks. Now is the time to get that unruly sward in order, as the peak BBQ and outdoor hosting season is now upon us.

So, if you're looking for the best multi-use strimmer or the best strimmer for edging, this guide will introduce you to the finest on the market today, with all budgets considered from entry-level to premium. We've also got wired and wireless strimmers here, too, as well as some advice to help you determine which strimmer will be right for your needs.

And, if you're looking master your land's turf, be sure to also take a look at T3's best cordless lawn mower, best robot lawn mower and best petrol lawn mower buying guides, as they are stuffed with top-rated sward slayers.

For those with unruly hedges, then a quick look at T3's best hedge trimmers article will be valuable, as it is stuffed with quality corded and cordless systems. And then, when your lawn is looking lush, be sure to unwind in one of the best hot tubs.

The best strimmers you can buy today

Terratek 20V Cordless Strimmer best strimmer 2021T3 Award

The best strimmer for most people? That's the Terratek 20V Cordless Strimmer.

(Image credit: Terratek)

1. Terratek 20V Cordless Strimmer

The best cordless strimmer you can get without spending hundreds

Specifications
Power: 20v
Type: Cordless
Cutting area: 25cm
Edging?: Yes
Weight: 2.0kg
Reasons to buy
+Cordless convenience+Comes with two batteries+Converts from trimmer to edger+Quick change blades
Reasons to avoid
-Proprietary blades

The Terratek 20V Cordless Strimmer is a great value product that combines both trimming and edging capabilities in one strimming package.

As the name suggests, this strimmer is completely cordless, which is great in terms of ease of use and convenience as you don't have to deal with extension cables. 

What separates this wireless unit from many others, though, is that it comes as standard out of the box with two batteries, meaning that you've got twice the amount of juice for strimming. Each battery last about 40 minutes, so you've got an hour and a half of non-stop strimming power on tap. Battery recharge time isn't particularly fast at 3-5 hours, but we can't see anyone needing more strimming after 90 minutes of action.

The Terratek 20V Cordless Strimmer is also light, weighing in at just 2kg, and comes with large 25cm trimming diameter and quick change blades. These blades just snap in and out of the blade housing, making replacing them easy.

Then throw in the fact that this system can also edge, has an adjustable height of 95cm to 115cm, and comes with a 2-year warranty, and it's clear to see it is a very strong all-round package. And especially so at its budget price point.

To see how this model performs against a top-rated rival, then read T3's Terratek 20V vs Ego ST1510E comparison feature.

Ego ST1510E best strimmers 2021T3 Approved badge

If you've got a premium budget and serious stimming needs, then consider the Ego ST1510E.

(Image credit: Ego)

2. Ego ST1510E

An industrial strength cordless strimmer with self-winding string spool

Specifications
Power: 56v
Type: Cordless
Cutting area: 38cm
Edging?: Yes
Weight: 3.2kg
Reasons to buy
+Exceptional build+Auto spooling line+Large cutting area+Well balanced+Great run time
Reasons to avoid
-A little bit weighty-Not cheap

Is there anything more faffish than having to wind springy nylon line around a strimmer spindle? You know the scenario. For some unknown reason the line suddenly stops feeding through while you're trimming so you remove the lid on the line feeder and – zing – the whole lot springs out in one big tangled mess. You then spend the next 15 minutes trying to wind it back on the spool only to discover you didn’t wind it on as well as they did at the factory and now it’s worse than before. So you chuck the whole damn lot into the shed where it still resides to this day.

Ego feels your pain and has come up with the answer – a pro-spec cordless whipper snipper that self winds. Simply grab a decent length of Ego’s industrial strength 2.4mm nylon line, feed it through the head and hold the ‘Powerload’ button. Voila, the entire line is mechanically rolled up in just 10 seconds. This is groundbreaking stuff, dude.

The strimmer itself is equally amazing. Although it’s quite heavy, it’s so well balanced that you don’t really notice the weight when using it. What you will notice is how superbly well it performs. Unlike most strimmers that have just one short line spinning around, this one has two and a combined cutting area of 38cm. This not only speeds up the process noticeably but it also makes it more efficient, which in turn leaves more time for important leisure activities like lobbing water bombs at the kids. Its small unassuming cutter head, meanwhile, features a brushless motor that will likely go on running longer than you will. 

Ego’s battery tech is among the very best and this strimmer can be used with a variety of the company’s 56v batteries. The 2.5Ah version provides about 30 minutes of trimming time while its 7.5Ah version goes on running for up to 90 minutes. 

If you have a large lawn and the financial wherewithal, then this is unequivocally the weed whacker for you.

Black & Decker GL7033 The best lawn edger 2021T3 Approved badge

If you just want an affordable lawn edger, then the Black & Decker GL7033 is a great choice.

3. Black & Decker GL7033

The best lawn edger for most people

Specifications
Best for: Professional looking borders
Cutting width: 33cm
Cordless?: No
Power: 700W
Weight: 3.2kg
Reasons to buy
+Surprisingly manoeuvrable+Trims and edges with precise guide
Reasons to avoid
-Telescopic extension could be a little longer 

There’s more to this heavy-duty Black & Decker trimmer than meets the eye, not least that it’s lighter and more maneuverable than you might think on first glance – but there’s also the fact that it’s part trimmer, part edger. According to Black & Decker, all it takes for a professional, precise finish is a quick switch to vertical mode, and the innovative Wheel Edge Guide will do the rest – well, it’ll help keep you neat, we can’t expect it to do all the work now can we?

Worx WG163 best strimmer 2021T3 Approved badge

4. Worx WG163

A trimmer and edger in one affordable package

Specifications
Best for: Precision
Cutting width: 30cm
Cordless?: Yes
Power: 20V
Weight: 2.4kg
Reasons to buy
+Trims hard-to-reach spots+Includes two batteries
Reasons to avoid
-Not great at tackling lots of weeds

The Worx WG163 is one of a few two-in-one tools on our list, acting as a grass trimmer and wheeled edger in one. Worx promise quick, hassle-free conversion between the modes and a handy auto line feed, both of which mean you won’t get slowed down mid-landscaping, and include two li-ion batteries into the bargain, so you can keep using one while the other recharges. A 90-degree pivoting head also makes it easier to trim tricky spots, so if you have lawn furniture, a trampoline, or a tricky-shaped garden, it may be a good buy.

You can see how this strimmer stacks up to our number one choice in T3's Terratek 20V vs Worx WG163 comparison feature.

Flymo Contour 650E Electric Grass Trimmer and EdgerT3 Approved badge

(Image credit: Flymo)

5. Flymo Contour 650E Electric Grass Trimmer and Edger

A strong all-round corded strimmer

Specifications
Brand: Flymo
Wireless: No
Dimensions: 118 x 35 x 43 cm
Weight: 4.3 kg
Cutting cord diameter: 2 mm
Cutting cord length: 10 metres
Wattage: 650 watts
Reasons to buy
+Trimmer and edger in one+30 cm cutting width+Telescopic handle
Reasons to avoid
-Corded, so there's wires to deal with

There's a lot of value delivered in the Flymo Contour 650E electric line trimmer, and not least because it can act as both a grass trimmer and edger in one unit.

It cuts with a 2mm nylon cord, which is 10 meters in length, and delivers a mid-tier cutting width of 30 centimetres, which will be more than enough for most gardens. This is especially true as this model delivers a dual auto line feed system, meaning that it is more robust than cheaper strimmers.

Other reasons to buy include a telescopic handle, which makes getting to hard to reach things easier, as well as a built in wheel mechanism that makes edging around curved borders and around walls and fences easier, too.

The downsides to this strimmer are really only two-fold: firstly, it is not an wireless strimmer, so you have to deal with a power cord, and secondly its build is very ABS plastic heavy. This makes it lighter to use, though, admittedly.

Ryobi RLT6030 best strimmer 2021T3 Approved badge

6. Ryobi RLT6030

A bright, cheerful and budget-friendly strimmer-meets-edger

Specifications
Best for: Performance
Cutting width: 30cm
Cordless?: No
Power: 600W
Weight: 4.6kg
Reasons to buy
+Powerful trimming and edging+Easy to change modes
Reasons to avoid
-Some found the cable too short

This Ryobi edger is far from a one-trick pony, offering up strimming as well as edging capabilities for all-round neatness in the garden. Using EasyEdge technology, the spring-assisted change support promises to make switching between modes easy, and the live tool indicator lights up when plugged in so you know you’re safe to start. Reviewers loved how powerful it was on both fronts, but the protected spool cover means that it won’t get away from you and accidentally mulch your prized begonias – good to know!

Cobra GT3024V best grass strimmer 2021T3 Approved badge

(Image credit: Cobra)

7. Cobra GT3024V

A great value cordless strimmer with edging wheels

Specifications
Power: 24v
Type: Cordless
Cutting area: 30cm
Edging?: Yes
Weight: 2.4kg
Reasons to buy
+Multi adjustable+Comes with edging wheels+Two speeds
Reasons to avoid
-Quite easy to accidentally turn off mid strim

UK-based Cobra waltzes onto the lawn with a cracking strimmer that is both light in the hand and ergonomically styled for effortless strimming. It’s infinitely adjustable from shaft and handle to base and even comes with a pair of wheels for edging lawns to OCD perfection (simply twist the head 45˚).

This model features two cutting speeds: Eco and Turbo. To use, hold in the ‘on' button for a few seconds and it will default to Eco mode which is ample for most strimming needs. If the grass is really long or straw like, switch it to Turbo mode and it’ll slice through it like butter. 

Unfortunately, the ‘on’ button is quite easy to turn off accidentally with your thumb mid strim so bear that in mind should it suddenly cut out and you start panicking that it’s run out of juice. You can safely expect between 25 and 30 minutes of strimming time per charge and a charging time of around two hours. It comes with one 24v battery.

Cobra produces a wide range of great garden machinery and this model’s a case in point. Being of British origin, you should have no issue sourcing its products and spares.

BLACK+DECKER ST5530 best strimmer 2021T3 Approved badge

(Image credit: Black & Decker)

8. Black & Decker ST5530-GB

The best budget corded strimmer (that doubles as a mower!)

Specifications
Power: 550W
Type: Corded
Cutting area: 30cm
Edging?: Yes
Weight: 2.5kg**
Reasons to buy
+Large cutting area+Turns into a mower+Very affordable
Reasons to avoid
-It’s corded

This corded strimmer comes equipped with a 550W motor, a 7500rpm cutting speed and an incredibly long cable. And at just 2.5kg, it isn’t a pain to use for long cutting sessions.

The cutting head rotates for edging (and has a wheel guide for best results) and rather brilliantly transforms into a lawn mower via the separate CM100 Mower Deck, which is currently £46.

This writer has used it as a strimmer to tackle really thick grass, weeds, shrubs, ivy and the neighbours’ cats, and it’s coped admirably with the lot: it’s light enough that I’ll often do the whole garden with it rather than go to the hassle of getting the mower out.

Ryobi RLT1825M20S 18V ONE+ Cordless 25cm Grass TrimmerT3 Approved badge

(Image credit: Ryobi)

9. Ryobi 18V ONE+ Cordless 25cm Grass Trimmer

A highly portable strimmer for trimming and edging

Specifications
Power: 18v
Type: Cordless
Run time: 24 minutes
Cutting area: 25cm
Edging?: Yes
Weight: 3.2kg
Reasons to buy
+Battery powered portability+Trimming and edging functions+All-metal boom
Reasons to avoid
-24-minute run time not ideal for huge gardens

Ryobi has a good heritage in strimmers and here its Ryobi RLT1825M20S 18V ONE+ Cordless 25cm Grass Trimmer Starter Kit delivers a wireless unit that can both edge and trim with ease.

This strimmer is powered by a 2.0Ah lithium-ion battery, which clips into it under the handle. This battery delivers 24 minutes of operation before needing to be recharged, which we think is more than enough for any small to medium size garden. Naturally, though, if you have a very large garden then expect to buy additional batteries or wait for a recharge.

The cutting path of the Ryobi strimmer is 25cm, which is tailored very much towards grass and weed cutting, and the cutting blades themselves are made out of nylon and easily replaced.

BLACK & DECKER 36V - GLC3630L20 best grass strimmer 2021T3 Approved badge

10. BLACK & DECKER GLC3630L20

Best Black & Decker cordless strimmer

Specifications
Power: 36V
Type: cordless
Cutting area: 30cm
Edging?: Yes
Weight: 3.5kg
Reasons to buy
+Fantastic battery+Good cutting width
Reasons to avoid
-Turbo reduces battery life-Quite weighty

The big advantage of cordless strimmers - there’s no cable to limit your movement or accidentally cut - is often compromised by poor battery life. Not here: the 36V fade-free Lithium Ion battery in this Black & Decker can cut up to 3,750 linear metres before needing recharged. 

The 30cm cutting swathe is a good balance between size and portability, the telescopic tube means it’s easy to find a comfortable position and the single line feed system works well and isn’t prone to jamming if you keep the cutting area clean. The strimmer has two operating modes: ECO for normal cutting, and TURBO for maximum power of up to 8,500rpm. 

At 3.5kg it’s not especially light for a battery-powered strimmer but, if you’re been disappointed by cordless models in the past, we think you’ll be pleasantly surprised by how long this one lasts between charges.

Bosch Electric Grass Trimmer EasyGrassCut 23T3 Approved badge

(Image credit: Bosch)

11. Bosch Electric Grass Trimmer EasyGrassCut 23

The best ultra-affordable strimmer

Specifications
Power: 280 watts
Type: Corded
Cutting area: 23cm
Edging?: No
Weight: 1.7kg
Reasons to buy
+Really cheap+Really light
Reasons to avoid
-Cord is only 2m long

If you don’t have a huge garden to trim or much money at all to spend on a unit, this Bosch strimmer is a strong choice: the 23cm cutting area isn’t as big as some rivals, but neither is the price tag. It weighs just 2.1kg, too, meaning it is easy to handle.

The spool is a single line job with semi-automatic feeding and it’s fine for grass up to 15cm high, although the lack of a heavy-duty option means that’s about the only growing thing you’ll want to tackle with this unit.

It is a corded strimmer as you would expect from this price point, but you get a six metre lead in the box so you've got some reach. Again, for small gardens where all you want to do is trim grass, this is a good fit.

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