Smart Pick Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

 

If you’re torn between the Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower, the real choice comes down to yard size and runtime. The 19″ is lighter and easy to handle, while the 21″ gives more power and longer cutting time. 

In my own use, the smaller mower felt perfect for quick jobs, but the bigger one saved me effort on thick grass. Both reflect Greenworks’ push for cleaner, quieter lawn care, making them solid picks for U.S. homeowners looking for a gas-free option.

Greenworks 40V 19″ Brushless

I’ve been using this mower for a while now, and it has changed the way I look at yard work. It feels simple, powerful, and much easier compared to gas mowers.

What I Like

After using this mower for a good while, I’ve noticed some things that make my yard work easier and even a little enjoyable. Let me share a few points I really like:

• Quiet and Peaceful – It runs so quietly that I can mow in the morning without worrying about waking up the neighbors. That calm hum feels refreshing compared to the roar of gas engines. 
• Simple Push-Button Start – No pulling cords or fighting with a choke. One press, and it’s ready to go. That small detail saves me time and energy every single time. 
• Upright Storage Saves Space – I can fold it and store it upright, which is a big deal in my garage where space is tight. It feels like the mower respects my space. 
• Clean, Even Cuts – The brushless motor gives steady power, and the lawn looks neat after every pass. It’s almost like giving my grass a clean haircut. 
• Eco-Friendly – No gas, no oil, no fumes. It feels good knowing I’m making a small difference for the environment while keeping my yard in shape. 

What Could Be Better

Now, nothing is perfect, and I want to be honest. There are a few areas where this mower could be improved, but none of them are deal-breakers.

• Battery Runtime Could Be Longer – On thick grass, the battery drains faster. I sometimes wish it lasted a little longer, but grabbing a second battery solves the issue. 
• Tall Grass Requires Patience – If the grass grows too long, I need to mow a bit slower. It’s not a problem once you get used to it, but it’s worth knowing. 
• Single Battery Slot – Some models hold two batteries, but this one uses one at a time. I would love that extra slot for longer sessions without swapping. 

Overall, these are small trade-offs. Once you know them, it’s easy to work around, and the benefits far outweigh the downsides.

My Personal Experience

I’ve been using Greenworks products for more than two years, and this mower is one of the reasons I trust the brand. It’s not only about cutting grass—it’s about how the product fits into everyday life. Here’s my experience broken down:

Design

The design is simple, light, and smart. The foldable handle and upright storage make it feel like it was built with homeowners in mind. When I first tucked it neatly against the garage wall, I realized how much space I was saving. It feels like owning a compact car instead of a bulky truck—practical, efficient, and easy to live with.

Performance

What impressed me most is how consistent the performance is. The brushless motor adjusts its power when the grass gets thicker, almost like it knows when to push harder. On regular grass, it glides smoothly and gives a clean, even cut. On tougher patches, I just slow down a bit, and it gets the job done. For me, it feels like teamwork between the mower and me.

Build Quality

The steel deck feels solid, and the mower itself has held up well after many uses. Sure, it’s lighter than gas mowers, but that’s what makes it easy to push. I see Greenworks products as reliable tools—not flashy, but dependable. Over time, I’ve added their trimmer and blower, and together they feel like part of a well-built set that covers all my yard needs.

Greenworks 40V 21″ Push Mower

I’ve been testing this mower for some time now, and it has proven to be both easy to use and reliable in daily yard work.

What I Like

Over time, I’ve noticed a few things about this mower that make my life much easier. Here’s what stood out to me:

• Quiet Operation – It runs so quietly that I can mow early in the morning without worrying about waking the family. 
• Easy Start – No pulling cords or messing with gas. Just press a button, and I’m ready to go. 
• Smooth Self-Propel Option – It feels like a gentle push from behind, almost like walking with a golf cart. It makes mowing less of a workout and more of a walk. 
• Long Run-Time – With the 5.0Ah battery, I get a solid 45–60 minutes, which is enough for my yard without rushing. 
• Versatile Cutting Options – I switch between bagging and mulching depending on the season. Both work well and save me time. 
• Easy Storage – The vertical storage design saves a lot of room in my garage. 

What Could Be Better

Every mower has little things that could be improved. These are not deal-breakers, but worth mentioning:

• Battery for Larger Yards – For bigger lawns, one battery might not be enough. I keep a backup so I don’t lose momentum halfway through. 
• Tall Grass Challenge – Like most mowers, it struggles if the grass is very tall and set too low. Raising the height solves this quickly. 
• Build Feel – While durable, it doesn’t feel as heavy-duty as some gas models. That said, the lighter build makes it easier to handle. 

My Personal Experience

I’ve been using Greenworks tools for a while now, and this mower has impressed me more than I expected. The brand has come a long way in design, reliability, and ease of use.

Design

What I love about the design is how simple yet smart it feels. The 21-inch deck cuts a wide path, so I spend less time going back and forth. The dual battery port is clever—I can keep a spare ready, so I don’t need to run inside in the middle of mowing. And when I’m done, storing it upright saves space in my already crowded garage. It feels like Greenworks really thought about how real people live and work.

Performance

This mower surprised me with how consistent it performs. It cuts cleanly, even when the grass is a little thick, and the brushless motor keeps it strong without being noisy. I’ve had gas mowers that left clumps behind, but this one mulches evenly and bags without fuss. Even when it bogs down in very tall grass, a quick height adjustment fixes it. For a battery mower, that balance of power and quiet is impressive.

Build Quality

The build feels solid yet manageable. At 62 pounds, it’s sturdy enough to handle bumps in the yard but light enough that I can move it without strain. The wheels roll smoothly, not cheap or flimsy like some older electric models I’ve used. Does it feel as tank-like as a heavy gas mower? No. But honestly, I prefer that—it’s easier on my back and arms. And the fact that it’s eco-friendly, with no fumes or messy oil, makes me enjoy using it even more.

Details Comparison: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

I’ve been testing both mowers for a while. Each has its strengths, and both carry the same Greenworks promise—quiet mowing, no gas fuss, and easy handling. Let’s walk through the details one by one.

Mower Type: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

Both are cordless push mowers designed for small to medium lawns. The 19″ model is lighter and feels agile. The 21″ model is heavier but gives more options and runtime.

Mower	Type
Greenworks 40V 19″ Brushless	Lightweight push mower, best for small yards
Greenworks 40V 21″ Push	Heavier push mower, suited for medium to large yards

Rating:

• 19″ Brushless: 8.5/10 
• 21″ Push: 9/10 

Cutting Deck Size: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

Deck size decides how much grass you cut in one pass. The 19″ deck is nimble in tight spots, while the 21″ deck saves time in bigger yards.

Mower	Deck Size
Greenworks 40V 19″ Brushless	19″ steel deck
Greenworks 40V 21″ Push	21″ steel deck

Rating:

• 19″ Brushless: 8/10 
• 21″ Push: 9/10 

Battery & Power System: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

The 19″ mower runs on a 40V 4.0Ah battery. It lasts up to 30 minutes but drops fast in thick grass. The 21″ mower uses a 5.0Ah battery, with about 45–60 minutes of runtime.

Mower	Battery & Power
Greenworks 40V 19″ Brushless	40V, 4.0Ah, up to 30 mins
Greenworks 40V 21″ Push	40V, 5.0Ah, up to 60 mins, dual battery slot

Rating:

• 19″ Brushless: 7.5/10 
• 21″ Push: 9/10 

Cutting Performance & Efficiency: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

The 19″ mower handles light grass well but slows down in thick patches. The 21″ mower gives more power and smoother cuts, though it may bog in wet grass.

Mower	Cutting Performance
Greenworks 40V 19″ Brushless	Good for light to medium grass
Greenworks 40V 21″ Push	Stronger motor, better for medium to large yards

Rating:

• 19″ Brushless: 7.5/10 
• 21″ Push: 8.5/10 

Mulching & Bagging Capabilities: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

The 19″ model works with mulch and side discharge. The 21″ model adds bagging, making it more versatile.

Mower	Mulching & Bagging
Greenworks 40V 19″ Brushless	Mulch + side discharge
Greenworks 40V 21″ Push	Mulch + bag + side discharge

Rating:

• 19″ Brushless: 7/10 
• 21″ Push: 9/10 

Key Features & Controls: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

Both have push-button start and adjustable height levers. The 21″ mower adds a dual battery slot, USB charging, and a turbo button for leaves.

Mower	Features
Greenworks 40V 19″ Brushless	Simple push start, 7 height settings
Greenworks 40V 21″ Push	Push start, dual battery, USB port, turbo mode

Rating:

• 19″ Brushless: 7.5/10 
• 21″ Push: 9/10 

Weight & Maneuverability: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

The 19″ mower is light at 40 lbs and easy to push. The 21″ mower weighs 62 lbs, which feels heavier but more stable.

Mower	Weight
Greenworks 40V 19″ Brushless	40 lbs, very light
Greenworks 40V 21″ Push	62 lbs, heavier but steady

Rating:

• 19″ Brushless: 9/10 
• 21″ Push: 8/10 

Noise Level: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

Both are very quiet compared to gas mowers. The difference between the two is barely noticeable.

Mower	Noise Level
Greenworks 40V 19″ Brushless	Quiet
Greenworks 40V 21″ Push	Quiet

Rating:

• 19″ Brushless: 9/10 
• 21″ Push: 9/10 

Durability & Build Quality: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

The 19″ mower feels lighter but not as rugged. The 21″ mower feels sturdier, though some parts are plastic. Both hold up well with normal use.

Mower	Build Quality
Greenworks 40V 19″ Brushless	Lighter build, less rugged
Greenworks 40V 21″ Push	Heavier, stronger build, plastic parts

Rating:

• 19″ Brushless: 7.5/10 
• 21″ Push: 8.5/10 

Ease of Use & Maintenance: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

Both start with a button and store upright. The 19″ is easier to carry. The 21″ takes more space but is still simple to store and clean.

Mower	Ease of Use
Greenworks 40V 19″ Brushless	Very light, quick storage
Greenworks 40V 21″ Push	Easy to store, more features to manage

Rating:

• 19″ Brushless: 9/10 
• 21″ Push: 8.5/10 

Price & Value Proposition: Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

The 19″ mower is cheaper and good for small lawns. The 21″ mower costs more but offers better runtime, more features, and greater versatility.

Mower	Price & Value
Greenworks 40V 19″ Brushless	Budget-friendly, good value for small yards
Greenworks 40V 21″ Push	Higher price, more power and features

Rating:

• 19″ Brushless: 8.5/10 
• 21″ Push: 9/10 

Final Thoughts
Both mowers do their job well. The Greenworks 40V 19″ Brushless is best if you want something light, simple, and affordable for a small yard. The Greenworks 40V 21″ Push Mower is the better choice if you want more runtime, more features, and a wider cut for medium to large yards.

FAQs for Greenworks 40V 19″ Brushless vs 40V 21″ Push Mower

What is the main difference between the Greenworks 40V 19″ Brushless and the 40V 21″ Push Mower?

The 19″ is lighter and best for small yards, while the 21″ offers longer runtime, more features, and suits medium to large lawns.

Which mower has better battery life, the Greenworks 40V 19″ Brushless or the 40V 21″ Push Mower?

The 21″ mower lasts up to 60 minutes with a 5.0Ah battery, while the 19″ runs about 30 minutes with a 4.0Ah battery.

Can both the Greenworks 40V 19″ Brushless and 40V 21″ Push Mower handle thick or tall grass?

The 21″ mower performs better on thick grass with more power, while the 19″ may slow down in tall or dense patches.

Do both mowers offer mulching and bagging options?

The 19″ mower supports mulching and side discharge. The 21″ adds bagging, making it more versatile for different lawn needs.

Which mower offers better value, the Greenworks 40V 19″ Brushless or the 40V 21″ Push Mower?

The 19″ is budget-friendly and ideal for small yards. The 21″ costs more but adds longer runtime, better features, and wider coverage.

 

Read More: Greenworks 40V 2.5Ah vs 2.0Ah Battery: Key Differences Explained