Primea Reviews is reader-supported. When you buy through our Amazon links we may earn a commission, at no extra cost to you. Rankings are set by our editors and never sold. Learn more

Ranked & Reviewed by Primea Reviews

The 6 Best 21-Inch Lawn Mowers of 2026, Ranked & Reviewed

By the Primea Editorial TeamUpdated November 1, 202610 min read6 products ranked

The short answer

The Greenworks 80V 21-inch self-propelled mower is the best 21-inch lawn mower: an 80V 4.0Ah battery, a driven wheel set, and a charger in the box, for $200 to $500. The EGO LM2114 is the best push mower on a 56V platform, the SENIX X6 has the biggest 8Ah pack, and the Worx WG752 offers mulch, bag or side discharge.

The Primea Scoreboard

Ranked & Reviewed

01
Best Overall
Greenworks 80V 21-Inch Self-Propelled Mower
Battery power and a drive system that does the walking for you.
Outstanding
Check price
02
Best Push Mower
EGO Power+ LM2114 21-Inch Cordless Mower
A straightforward full-width push mower on a 56V platform.
Excellent
Check price
03
Biggest Battery
SENIX X6 60V 21-Inch Self-Propelled Mower
An 8Ah pack, seven height levels and a smart display.
Excellent
Check price
04
Best 3-in-1
Worx WG752 40V 21-Inch 3-in-1 Mower
Switches between mulching, bagging and side discharge.
Excellent
Check price
05
Best Mid Battery Push
Greenworks 60V 21-Inch Push Mower
A larger included battery for flat to gently sloped yards.
Very Good
Check price
06
Best 80V Value
Greenworks 80V 21-Inch Push Mower
The 80V platform without paying for self-propel.
Very Good
Check price

A 21-inch deck is the standard size because it balances cutting width against storage and handling. Width is the easy part. The real decision is the battery, since voltage and amp-hour rating decide how long you can mow and which other tools the pack will power later. Pick the wrong platform and you buy a second charger when the first mower wears out.

Every mower here is cordless with a 21-inch deck, so we ranked them on battery size, drive type, extras like mulching or height settings, and what each includes in the box. The order comes from listings and from how owners describe these machines, with no runtime figures invented. Packs range from 40V to 80V, and two of the six are self-propelled.

Before you buy

What Actually Matters

Battery voltage and Ah

Volts describe the platform and amp-hours describe capacity, much like a fuel tank. A bigger Ah number means a longer mowing session. Look for both figures in the title or bullets. The SENIX lists 60V and 8Ah, the Greenworks 60V 5.0Ah, and the 80V Greenworks models 4.0Ah. Pack size sets how many square feet one charge covers, so a big lawn may need a second battery.

Self-propelled vs push

Self-propelled mowers drive their own wheels, which helps on larger or sloped lawns. Push mowers cost less and weigh less to lift. Check the drive type in the specs. The Greenworks 80V self-propelled and SENIX X6 list drive, while the other four are push or unstated. A driven wheel set also adds weight, so factor in lifting it into a shed.

Platform lock-in

Buying into a battery family ties future tools to the same brand. That can be good or limiting. Check which other tools use the same voltage. EGO 56V, Greenworks 60V and 80V, SENIX 60V and Worx 40V are different families, so batteries do not cross over. Check the tools you own already before choosing, since a shared pack is the biggest saving.

Clipping handling

Mulching, bagging and side discharge each suit different seasons. A 3-in-1 deck handles all of them. Look for the words mulch and bag. The Worx WG752 lists all three, while the other five do not state their clipping modes, so confirm on the listing. Mulching works best on lawns cut often.

Height adjustment

More cutting height levels let you tune for grass type and season. Seven levels is finer than the typical few. Look for the level count. The SENIX lists seven, and the others do not state a number. A taller cut helps grass shade its roots in summer, and a lower setting suits spring. Adjustable height is a simple way to adapt to the season.

In-depth reviews

Our Ranked Picks, Reviewed

Best Overall

Greenworks 80V 21-Inch Self-Propelled Mower

Outstanding

Check price on Amazon

Our verdict: Battery power and a drive system that does the walking for you.

This mower pairs the 21-inch deck with an 80V system, a 4.0Ah battery and charger in the box, and self-propelled drive. It sells in the $200 to $500 range. Self-propel is the feature that most changes a mowing session on a larger lot: the wheels pull while you steer, so a long afternoon is less of a slog.

It takes first place because the kit arrives complete. The push version below drops the drive but keeps the same battery, so this is the one to choose if the yard has length or a slope. Against the SENIX X6, it uses a smaller pack but a longer-established brand.

Buy it for medium to larger lawns. The caveat is cost, as you pay for the drive system, and one 4.0Ah pack limits a very large job. Skip it if your lawn is small, flat and easy to push across.

Deck: 21 inch
Battery: 80V, 4.0Ah
Drive: Self-propelled
In the box: Battery and charger

What we like

+Self-propelled drive
+80V battery platform
+Battery and charger included
+Less walking effort

Watch out for

−Costs more than push
−One battery limits big lawns

Buy it if: Medium to larger lawns where walking effort matters.

Skip it if: Your lawn is small, flat and easy to push across.

Best Push Mower

EGO Power+ LM2114 21-Inch Cordless Mower

Excellent

Check price on Amazon

Our verdict: A straightforward full-width push mower on a 56V platform.

The LM2114 uses a 21-inch deck on the 56V EGO battery platform, with a push drive and the battery and charger included. It sells in the $200 to $500 range. A 56V platform opens a family of other cordless tools that share the same pack, which lowers the cost of adding a trimmer or blower later.

It places second because it lacks drive, which the Greenworks self-propelled version offers, but it keeps the setup simple for a standard lawn. Its 56V platform lets you add other tools in that family. Against the Greenworks 80V push model, it offers a different tool family at a similar cost.

Choose it for an average, mostly flat yard. The caveat is plain: you push the whole way, and hills get tiring. Skip it if your lawn has slopes or is large.

Deck: 21 inch
Battery: 56V platform
Drive: Push
In the box: Battery and charger

What we like

+56V tool platform
+Complete kit in the box
+Simple push design
+Full-width deck

Watch out for

−No drive assist
−Tiring on slopes

Buy it if: Standard, mostly flat lawns.

Skip it if: Your lawn has slopes or is large.

Biggest Battery

SENIX X6 60V 21-Inch Self-Propelled Mower

Excellent

Check price on Amazon

Our verdict: An 8Ah pack, seven height levels and a smart display.

The X6 runs on a 60V system with an 8Ah battery, the largest in this ranking, plus self-propelled drive, seven-level height adjustment and a smart display. It sells in the $200 to $500 range. A bigger Ah figure is simply a bigger fuel tank, which matters on a larger lawn that outlasts a 4Ah pack.

It lands third because it has the best spec sheet but the least established brand here, so there is less owner history to lean on. Against the Greenworks 80V self-propelled, you gain battery capacity and fine height control. Seven height levels let you tune the cut.

It suits buyers who value features over brand heritage. The caveat is that the smart display adds a component that could age, and long-term support is harder to judge. Skip it if you prefer a long-established mower brand.

Deck: 21 inch
Battery: 60V, 8Ah
Drive: Self-propelled
Heights: 7 levels

What we like

+Largest 8Ah battery
+Seven height levels
+Self-propelled drive
+Smart display

Watch out for

−Less established brand
−Display adds complexity

Buy it if: Feature-focused buyers with a larger lawn.

Skip it if: You prefer a long-established mower brand.

Best 3-in-1

Worx WG752 40V 21-Inch 3-in-1 Mower

Excellent

Check price on Amazon

Our verdict: Switches between mulching, bagging and side discharge.

The WG752 has a 21-inch deck on a 40V platform and offers 3-in-1 operation: mulch, bag or side discharge. The listing rates it for up to half an acre, and it sells in the $200 to $500 range. Mulching returns clippings to the lawn as fertilizer, while bagging suits autumn leaves and weedy turf.

It ranks fourth because the 40V platform is a step below the 56V to 80V rivals, and the listing does not mention drive. The flexibility to change how clippings are handled is the draw. Against the EGO, it offers clipping choices but a smaller battery family.

Choose it for lawns where you mulch in summer and bag in autumn. The caveat is the smaller battery platform. Skip it if you want self-propel or the biggest battery.

Deck: 21 inch
Battery: 40V platform
Modes: Mulch, bag, side discharge
Rating: Up to 1/2 acre

What we like

+3-in-1 clipping options
+Rated for 1/2 acre
+21-inch deck
+40V platform

Watch out for

−Lower-voltage platform
−No drive listed

Buy it if: Lawns that need flexible clipping handling.

Skip it if: You want self-propel or the biggest battery.

Best Mid Battery Push

Greenworks 60V 21-Inch Push Mower

Very Good

Check price on Amazon

Our verdict: A larger included battery for flat to gently sloped yards.

This Greenworks is a 21-inch push mower on a 60V system with a 5.0Ah battery and charger included. It sells in the $200 to $500 range. A 5.0Ah pack gives a longer session than the 4.0Ah packs on the 80V models, which helps on a gentle slope or a lawn near the half-acre mark.

It ranks fifth because it asks you to push, and the 80V Greenworks models offer similar kit with a different platform. What it offers over the EGO is a 5.0Ah pack, which suits longer sessions on a gentle slope. Against the 80V push mower, it trades voltage for capacity.

Pick it if pack size matters more than drive. The caveat is that it has no self-propel for hills. Skip it if you want drive assistance.

Deck: 21 inch
Battery: 60V, 5.0Ah
Drive: Push
In the box: Battery and charger

What we like

+5.0Ah battery included
+Charger included
+Push design is simple
+60V system

Watch out for

−No self-propel
−Hills are hard work

Buy it if: Flat to gently sloped lawns.

Skip it if: You want drive assistance.

Best 80V Value

Greenworks 80V 21-Inch Push Mower

Very Good

Check price on Amazon

Our verdict: The 80V platform without paying for self-propel.

This Greenworks has a 21-inch deck, an 80V system with a 4.0Ah battery and charger in the box, and a push drive. It sells in the $200 to $500 range. The attraction is the 80V platform, which shares its battery with other tools in that family.

It ranks last because the self-propelled sibling has the same battery and adds drive, and the 60V push mower brings a larger pack. It is a value play for those who want 80V tools. Against the EGO, it matches the push design with a different tool family.

Buy it if you plan to share the battery with other 80V tools. The caveat is that nothing here stands out beyond the platform. Skip it if you want drive or a bigger battery.

Deck: 21 inch
Battery: 80V, 4.0Ah
Drive: Push
In the box: Battery and charger

What we like

+80V platform
+Battery and charger included
+Push design is simple
+21-inch deck

Watch out for

−Nothing stands out
−Smaller pack than 60V option

Buy it if: Owners building around 80V tools.

Skip it if: You want drive or a bigger battery.

Methodology

How We Ranked These

Battery capacity

Voltage and amp-hours decide how much lawn one charge can cover, so battery size carried the most weight.

Drive type

Self-propelled versus push changes effort on larger or sloped lawns.

Platform value

Shared batteries across tools lower long-run cost, so platform breadth earned points.

Kit completeness

Included batteries and chargers separated finished kits from bare machines.

Features

Mulching modes, height levels and displays added points where the listing names them.

Every Primea Score uses the same weights: Performance 30% · Build & Materials 20% · Everyday Usability 20% · Value 20% · Owner Satisfaction 10%. Full scoring rules

Buyer's guide

How to Pick the Right One for You

By Lawn Size and Slope

Size and slope decide whether drive is worth paying for.

Lawn	Our pick
Standard, flat	EGO Power+ LM2114
Medium to large	Greenworks 80V Self-Propelled
Large with a big battery	SENIX X6 60V
Flat to gently sloped	Greenworks 60V Push

By Budget

Spend	Our pick
Lower end of $200 to $500	Greenworks 80V Push, Greenworks 60V Push
Middle	EGO Power+ LM2114, Worx WG752
Upper end	Greenworks 80V Self-Propelled, SENIX X6 60V

Self-Propelled vs Push

Self-propelled

Drives its own wheels and saves effort. The Greenworks 80V Self-Propelled and SENIX X6 are the picks.

Push

Simpler and lighter in cost. The EGO LM2114 and both Greenworks push models lead.

Most buyers should default to push unless the lawn is large or sloped.

By Battery Platform

Platform	Our pick
56V EGO	EGO Power+ LM2114
80V Greenworks	Greenworks 80V Self-Propelled
60V	Greenworks 60V Push, SENIX X6
40V	Worx WG752

For Mulching and Bagging Specifically

Look for

A 3-in-1 deck that mulches, bags or discharges to the side.

In this ranking

The Worx WG752 lists all three modes.

When to Spend More

Spend more if

Your lawn is large. The SENIX X6 offers the biggest battery and Greenworks 80V adds drive.

Save if

The lawn is flat. The Greenworks 60V Push gives a good battery for less.

Questions

Frequently Asked Questions

Does a 21-inch deck fit most yards?+

It suits average yards well. Smaller lots can use a narrower deck, while very large lawns might prefer more battery capacity, such as the SENIX's 8Ah. A wider deck cuts the number of passes but is harder to store.

What is the biggest mistake buying a battery mower?+

Ignoring the battery platform, which is a long-term decision rather than a mower decision. Voltage decides which other tools you can share it with, so choose a family with the trimmers and blowers you plan to buy. Switching families later means new batteries and chargers.

Is self-propel worth the extra cost?+

On slopes or long lawns, yes, as with the Greenworks 80V self-propelled. On flat small ones, push is plenty and cheaper. Self-propel earns its cost mainly on long runs and mild inclines.

Do all of these include a charger?+

The EGO and Greenworks listings state that the battery and charger are included. Check the Worx and SENIX pages to confirm before ordering. A missing charger can add real cost, so ask the seller.

How do I store a battery mower?+

Keep the battery indoors away from extreme heat or cold, and charge it periodically during off-season storage. Never leave it in a hot garage. Clean the deck after use. Wipe off grass to keep the blade running freely.

Can I mulch with these?+

The Worx WG752 lists mulch, bag or side discharge. Check others on their pages, since the Greenworks and EGO listings do not name a mulching mode. Mulching also needs sharp blades and frequent cuts to work well.

Final take

Buy the Greenworks 80V self-propelled for medium to larger lawns and the EGO LM2114 for a flat yard on a 56V platform. Take the SENIX X6 for the biggest battery, the Worx for flexible clippings and the Greenworks 60V or 80V push models for simple value. Decide on the battery platform first, then the drive.

More Ranked & Reviewed Guides

The 7 Best 18-Inch Lawn Mowers of 2026, Ranked & Reviewed The 5 Best 22-Inch-Class Lawn Mowers for Medium Yards, Gas and Cordless, Ranked & Reviewed The 7 Best All-Wheel-Drive Lawn Mowers of 2026, Ranked & Reviewed