Mowers
EGO vs Ryobi vs Greenworks vs Toro: the mowers compared
Four flagship 21-inch mowers, every published number in one place, and an honest count of what nobody publishes.
Affiliate disclosure: we earn a commission if you buy through our links, at no extra cost to you. It never changes which product we rank first — here is how we're funded.
We have not tested these units. Every spec on this page comes from the manufacturer's own documentation and is linked to it. Every computed figure is arithmetic you can redo. Prices are checked daily — last verified January 1, 1970. Here is exactly how we pick.
Four brands, four 21-inch flagship walk-behinds, one table. We transcribed every number each manufacturer publishes, converted the battery specs so they are comparable, and left the gaps as gaps.
Everything, in one place
| Spec | EGO LM2135SP | Ryobi 40V HP | Greenworks LM2108S | Toro 21356 |
|---|---|---|---|---|
| Deck | 21 in | 21 in | 21 in | 21 in, 14-ga steel |
| Battery in kit | 56V 7.5Ah | 2 x 40V 6.0Ah | 80V 4.0Ah | 60V 6.0Ah |
| Watt-hours | 420Wh | 480Wh | 320Wh | 324Wh (published) |
| Runtime claim | 60 min | 80 min | 33 min | 45 min |
| Wh per minute | 7.0 | 6.0 | 9.7 | 7.2 |
| Cut height | 1-4 in, 8 pos | Not published | 1.38-4.0 in, 7 pos | 2-point adjust |
| Blade speed | Not published | Not published | 3200 RPM | Not published |
| Power figure | 7.0 ft-lbs torque | >170cc gas equiv. | Not published | Not published |
| Weight | Not published | Not published | 75 lb | 66 lb |
| Recharge | Not published | Not published | 40 min | 150 min |
| Acreage | Not published | Not published | 1/2 acre | Not published |
| Tool warranty | 5 yr | Not on page | 4 yr | Not on page |
| Battery warranty | 3 yr | Not on page | 4 yr | Not on page |
Every cell is transcribed from the manufacturer's own product page, all checked 3 September 2026. 'Not published' means the manufacturer does not state it -- we do not fill those in from third-party sources or from memory.
Count the gaps
Thirteen rows, four brands, fifty-two cells. Seventeen of them say "not published". Two of the largest cordless outdoor brands in the United States do not publish the weight of their flagship mower, and three of the four do not publish a recharge time.
That is the actual condition of this category, and it is why every comparison you can find online is written in adjectives. There often is not a number to write about. When we say we compete on being verifiable rather than on having tested things, this table is what we mean.
What each brand is actually offering
EGO: the most energy, the longest tool warranty
420Wh in a single pack is the largest included battery of any single-pack kit here, and the 8-position 1-to-4-inch cut range is the widest published adjustment. The 5-year tool warranty is the longest in the group. Against that: no published weight, no published recharge time, and a battery warranty of 3 years — the shortest here, on the component that fails first. Full detail in EGO vs Ryobi.
Ryobi: the most total energy and the lowest draw
480Wh across two packs and 6.0Wh per minute, the most efficient 21-inch self-propelled figure in the table. The 40V platform is also the cheapest route to a full set of tools. Against that: Ryobi's product page publishes almost nothing beyond runtime and drive type — no cut height, no weight, no warranty terms.
Greenworks: the brand that shows its work
The only mower here with a published blade speed, weight, recharge time, acreage rating and matched 4-year warranties on tool and battery. It also has the smallest included pack and the highest per-minute draw, which is why it ranks where it does on our main roundup. Full comparison in EGO vs Greenworks.
Toro: the only honest watt-hour figure in the category
Toro publishes 324Wh for its 60V Max 6.0Ah pack. Divide and you get 54V — the nominal voltage, not the max-charge number on the sticker. Every other brand in this table leaves you to multiply marketing voltage by amp-hours, which overstates capacity by roughly 10%. Toro also publishes a 66 lb weight and a 14-gauge steel deck, and is the only brand here to admit a 150-minute recharge.
How to actually choose between them
- Work out your watt-hour requirement first. Minutes of mowing x 7.5Wh, plus 30%. That single number eliminates half the table.
- Then decide how many tools you will own. Two or three, and the mower decides. Five or six, and the platform decides — see the platform guide.
- Then look at the battery warranty, not the tool warranty. Motors rarely fail in a decade; packs are warranted for three to four years for a reason.
- Treat missing specs as information. A manufacturer that will not publish a weight or a charge time has made a choice about that too.
The products discussed
Specs are the manufacturer's own and linked to the page they came from. Prices come from a live daily check; where we have no verified price we say so rather than print a stale one.
EGO Power+ 21" Select Cut LM2135SP
EGO · EGO 56V ARC Lithium · Our score 9.1/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The most watt-hours in the box of any flagship walk-behind here, on the platform with the widest tool range to grow into.
Published specs
| Deck | 21 in |
|---|---|
| Cutting torque | Up to 7.0 ft-lbs |
| Battery included | 56V 7.5Ah |
| Cut height | 1-4 in, 8 positions |
| Self-propel speed | 0.9-3.1 MPH |
| Runtime claim | Up to 60 min |
| Warranty | 5-yr tool / 3-yr battery |
Source: EGO POWER+ 21" Select Cut System (LM2135SP), egopowerplus.com
56V x 7.5Ah = 420Wh, using EGO's advertised pack voltage.
What the numbers favor
- 420Wh in the box -- the largest included pack of any flagship walk-behind on this page
- Eight cut-height positions from 1 to 4 in, the widest published range here
- Three interchangeable lower blades (mulching, high-lift bagging, extended runtime)
- 5-year tool warranty, the longest published on this page
What they don't
- EGO publishes torque (7.0 ft-lbs), not motor wattage, so it cannot be compared directly against Greenworks' 1500W figure
- The 7.5Ah pack that earns the runtime claim is also the expensive one to replace
your yard is under a quarter acre. You would be paying for 420Wh of headroom you will never discharge, and a 20 in push mower cuts the same grass.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Ryobi 40V HP Brushless 21" Self-Propelled
Ryobi · Ryobi 40V · Our score 8.6/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
Two 6Ah packs and the longest published runtime claim on this page, on the platform with the cheapest route to a fourth and fifth tool.
Published specs
| Model | RY40HPLM01B |
|---|---|
| Deck | 21 in |
| Motor | Brushless, 40V HP |
| Batteries included (kit) | 2 x 40V 6.0Ah |
| Drive | Variable-speed rear-wheel self-propel |
| Runtime claim | Up to 80 min on 2 x 6Ah |
Source: 40V HP Brushless 21" Self-Propelled Mower, ryobitools.com
40V x 6.0Ah = 240Wh per pack; the kit ships two, so 480Wh total -- but only 240Wh is available at any moment, because the mower draws one pack at a time.
What the numbers favor
- 480Wh across two packs, the most total energy in any kit here
- Two packs means you swap and keep mowing instead of waiting on a charger
- Ryobi's 40V range is the broadest consumer battery line of the three platforms
What they don't
- Only one 240Wh pack is live at a time -- the 480Wh is sequential, not simultaneous
- Ryobi does not publish a cut-height range or weight on the product page, so both are unknown to us
you own nothing on Ryobi yet and expect to buy heavy tools later. 40V is the lowest voltage of the three platforms, and the ceiling shows on chainsaws and riding gear.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Greenworks 80V 21" 4-in-1 LM2108S
Greenworks · Greenworks 80V · Our score 8.4/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The only mower here that publishes motor wattage, blade RPM, weight and an acreage rating -- and the only one whose battery warranty matches its tool warranty.
Published specs
| Model / SKU | LM2108S / 2550402 |
|---|---|
| Deck | 21 in |
| Max blade speed | 3200 RPM |
| Battery included | 80V 4.0Ah |
| Cut height | 1.38-4.0 in, 7 positions |
| Runtime claim | Up to 33 min |
| Weight | 75 lb |
| Rated for | Up to 1/2 acre |
| Warranty | 4-yr tool / 4-yr battery |
Source: 80V 21" 4-in-1 Self-Propelled Lawn Mower (LM2108S), greenworkstools.com
80V x 4.0Ah = 320Wh, using Greenworks' advertised pack voltage.
What the numbers favor
- 4-year battery warranty -- a year longer than EGO's 3-year, on the component that fails first
- Publishes blade RPM, weight and acreage rating; the other two brands publish none of the three
- 40-minute recharge on the included charger, the fastest published here
- 4-in-1 deck adds turbo leaf pickup on top of mulch, bag and side discharge
What they don't
- 320Wh included, the least of the three flagships -- and the 33-minute runtime claim reflects that
- 75 lb is the only published weight here, and it is not light
you want one battery to finish a half-acre without a swap. Greenworks rates the mower for 1/2 acre but claims only 33 minutes on the included pack; those two numbers only reconcile if you buy a second battery.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Toro 60V Max 21" Recycler Self-Propel (21356)
Toro · Toro 60V Max Flex-Force · Our score 8.3/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The only manufacturer here that publishes the actual watt-hour figure for its pack -- and the number tells you something the others hide.
Published specs
| Model | 21356 |
|---|---|
| Deck | 21 in, 14-gauge steel |
| Battery | 60V Max L324, 6.0Ah, 324Wh |
| Charge time | 150 min |
| Runtime claim | Up to 45 min on the 6.0Ah |
| Drive | Personal Pace variable-speed RWD |
| Weight | 66 lb |
| Storage | SmartStow vertical |
Source: 60V Max 21 in. Recycler Self-Propel Lawn Mower (21356T), toro.com
Toro labels the pack 60V Max 6.0Ah and publishes 324Wh. 324 / 6.0 = 54V -- the nominal voltage, not the 60V max-charge figure on the sticker. Every brand's 'max volts' is roughly 11% above nominal, so a nameplate watt-hour number is always about 11% optimistic. This is the single most useful spec on this page.
What the numbers favor
- Publishes a real watt-hour figure (324Wh) instead of leaving you to multiply the marketing voltage
- 45 minutes from 324Wh, against Greenworks' 33 minutes from a nameplate 320Wh
- 14-gauge steel deck, the only steel deck spec published on this page
- SmartStow vertical storage -- a genuine constraint solver in a one-car garage
What they don't
- 150-minute recharge is the slowest here by a wide margin
- Toro's 60V line is narrower than EGO's or Ryobi's, so the platform grows less far
you are buying into a platform rather than a mower. Toro builds excellent mowers; the 60V Flex-Force tool range is not the one to bet a decade of yard tools on.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Common questions
Which brand makes the best battery lawn mower?
Is EGO better than Ryobi for mowers?
Which brand publishes the most specifications?
Why do the runtime claims vary so much?
Does brand matter more than specs?
Sources
Read next
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- EGO 56V vs Ryobi 40V: which platform should you start on?
420Wh in one pack against 480Wh in two, with the warranty and build-out cost worked out.
- EGO 56V vs Greenworks 80V: higher voltage, smaller pack
80V beats 56V on paper. The included pack sizes reverse the result, and here is the math.
- 40V vs 80V: what the voltage on the sticker actually buys you
Volts x amp-hours = watt-hours. The one calculation that makes every battery spec comparable.