Greenworks 80V 21 Inch Self-Propelled Lawn Mower: Top Picks Compared

It’s Saturday morning, and your gas mower won’t start. Again. You pull the cord until your arm aches, then you smell the stale fuel and remember the last trip to the repair shop. For anyone who mows a third of an acre or more, this scene plays out every spring. The switch to battery power isn’t just about convenience, it’s about ending the ritual of carburetor cleaning and fuel stabilizer.

The Greenworks 80V platform has become a serious contender for homeowners who want gas-level power without the noise, fumes, or maintenance. The 21-inch self-propelled models in particular balance deck size, torque, and battery life for most suburban lots. What separates one model from another comes down to a few key details: battery capacity, extra features like LED lights or SmartCut technology, and whether you want a bare tool or a combo kit.

This guide breaks down the top Greenworks 80V 21-inch self-propelled mowers on Amazon, along with one 60V alternative that deserves attention. You’ll see where each model shines, where it falls short, and which one fits your specific lawn. If you’re still deciding between gas and electric, you might also want to read our electric mower guide for a broader view.

Here is a quick look at the key specs that separate these models.

Features	80V Brushless Self-Propelled	80V Self-Propelled (Newer)	80V Push Mower	80V Mower + Blower Combo	60V Push Mower
Drive Type	Self-propelled, rear wheel	Self-propelled, rear wheel	Push	Self-propelled	Push
Deck Material	21″ steel	21″ steel	21″ steel	21″ steel	21″ steel
Battery Included	4.0Ah	4.0Ah	4.0Ah	4.0Ah (2 batteries)	5.0Ah
Unique Feature	SmartCut auto-power	LED headlight	4-in-1 versatility	Includes 580 CFM blower	IPX4 waterproof, self-sharpening blades
Best For	Tech-savvy homeowners	Early/late mowing	Budget-conscious buyers	Leaf cleanup too	Wet grass, long seasons

Greenworks 80V Brushless Self-Propelled

This is the flagship model with the SmartCut feature. It senses grass thickness and automatically adjusts power, so you don’t have to fiddle with settings mid-lawn. If you have a yard with varied grass density—patchy shade spots mixed with thick sunny areas—this mower does the thinking for you.

The brushless motor delivers strong torque, and the rear-wheel drive with variable speed control gives you good traction on slopes. The 21-inch steel deck cuts a wide path, and the 3-in-1 design lets you mulch, bag, or side discharge. The 4.0Ah battery gives up to 45 minutes of run time, which is enough for about a third of an acre under normal conditions.

One trade-off: the SmartCut system can be aggressive in very tall grass, draining the battery faster than you’d expect. Also, the rapid charger is a welcome addition, but it’s bulky. If you prefer a simpler machine without the auto-sensing tech, you might not need this feature.

• SmartCut auto-adjusts power based on grass conditions
• Variable speed control on the handle
• 7-position single-lever height adjustment
• 60-minute rapid charger included
• Works with 75+ Greenworks 80V tools

Best for: Homeowners who want the most advanced 80V mower with hands-free power adjustment.

Greenworks 80V Self-Propelled Mower

This newer version of the 80V self-propelled mower skips the SmartCut feature but adds an LED headlight. That makes it a solid pick if you often mow after work when the sun is low. The light is genuinely bright enough to see where you’re going in the early evening.

Performance-wise, it’s nearly identical to the flagship model: same brushless motor, same 21-inch steel deck, same rear-wheel drive. The variable speed control lets you walk at your natural pace without constantly adjusting the throttle. It cuts up to half an acre on a single charge, according to Greenworks, which is generous for a 4.0Ah battery.

What you give up is the SmartCut auto-power feature. If you have a uniform lawn, you won’t miss it. But if you often hit thick patches, you’ll need to manually slow down or push harder. The LED light is a nice bonus, but it’s not a replacement for a well-lit yard.

• LED headlight for low-light mowing
• Rear-wheel drive with variable speed
• 3-in-1 mulching, bagging, side discharge
• 4-year tool and battery warranty
• Compatible with 75+ 80V tools

Best for: Those who need to mow in the early morning or late evening and want a reliable self-propelled model without extra complexity.

Greenworks 80V Push Mower

If you don’t need self-propulsion, this push model saves you money and weight. It’s the same 21-inch steel deck and brushless motor as the self-propelled versions, but without the drive system. For flat, smaller lawns, this is a smart choice.

The 4-in-1 versatility is a standout: mulch, bag, side-discharge, or use the turbo leaf pickup mode. That last feature is rare on push mowers and helps in the fall. The LED headlight is also included, which is a surprise at this price point.

The obvious drawback is the lack of self-propulsion. On any slope or with a large yard, you’ll feel the effort. Also, the 4.0Ah battery might not last as long if you’re pushing through thick grass because you’re doing more work manually. But for a flat half-acre or less, it’s a reliable, simple machine.

• 4-in-1 mowing options including turbo leaf mode
• LED headlight for visibility
• Lightweight compared to self-propelled models
• 4-year warranty
• Compatible with 80V battery platform

Best for: Budget-focused buyers with flat, manageable lawns who don’t want to pay for self-propulsion.

Greenworks 80V Mower + Blower Combo

This bundle pairs the self-propelled 80V mower with a 580 CFM axial leaf blower, and it includes two 4.0Ah batteries and a rapid charger. If you’re starting fresh with Greenworks tools, this kit gives you a full lawn care setup out of the box.

The mower itself is the same brushless self-propelled model with a 3-in-1 deck. The blower is powerful enough for driveways and patios, and it shares the same batteries, so you can swap between tools. The second battery is a practical bonus—you can charge one while using the other.

The trade-off is cost. You’re paying for both tools, even if you only need the mower. Also, the blower is axial, not a high-end backpack model, so it’s best for light to medium leaf cleanup. If you already own an 80V blower, this combo is redundant.

• Includes 580 CFM axial leaf blower
• Two 4.0Ah batteries and rapid charger
• Self-propelled mower with 3-in-1 deck
• 7-position height adjustment
• LED lights on both tools

Best for: New Greenworks users who need both a mower and a blower and want a single battery system.

Greenworks 60V Push Mower

This 60V model is a different beast. It’s a push mower with dual blades that self-sharpen, and it has an IPX4 waterproof rating. That means you can mow in damp grass without worrying about damaging the electrical components—something most electric mowers can’t handle.

The 60V system delivers 50% more torque than 40V mowers and spins the blade at 3200 RPM, which matches many 150cc gas mowers. The 5.0Ah battery provides ample run time, and the oversized rear wheels make pushing easier on uneven ground. The SmartCut feature here refers to the blades auto-adjusting power for thick grass, not the self-propulsion.

The main limitation is that it’s a push mower. No self-propelled option exists in this 60V line, so if you have a large lawn or hills, this isn’t the right fit. Also, the 60V battery platform is separate from the 80V line, so you can’t share batteries with other Greenworks 80V tools.

• IPX4 waterproof rating for wet grass
• Self-sharpening dual blades
• 10″ rear wheels for smooth pushing
• 5.0Ah battery included
• Works with 60V tool platform

Best for: Homeowners in rainy climates who need a rugged push mower that can handle damp conditions.

How We Chose These Products

We focused on the Greenworks 80V 21-inch self-propelled category because it’s the sweet spot for most residential yards. We compared each model’s drive type, deck construction, battery capacity, and unique features like SmartCut, LED lights, and combo kits. We also considered the 60V push mower as a value alternative because it offers similar power with a different battery ecosystem.

Real-world performance matters more than spec sheets. We looked at how each mower handles typical conditions: thick grass, slopes, and varying lawn sizes. We weighed the trade-offs of self-propulsion versus push, and the convenience of extra batteries versus the upfront cost. Every pick here has a clear purpose, and we’ve noted where each one falls short so you can decide with full information.

Buying Guide: What Really Matters

Battery voltage and amp-hours tell you about power and run time, but not the whole story. The 80V platform gives you more torque for thick grass and hills, but a 4.0Ah battery will drain faster than a 5.0Ah if you’re pushing hard. Think about your lawn size: a half-acre needs at least a 4.0Ah battery, while a third of an acre might be fine with less.

Self-propelled versus push is a big decision. If your yard is flat and under a quarter-acre, a push mower is lighter and cheaper. But if you have any slope or a larger area, the rear-wheel drive of a self-propelled model saves your arms and back. Variable speed control lets you match your walking pace, which feels more natural than a fixed speed.

Consider the battery platform. Greenworks 80V tools share batteries across trimmers, blowers, and chainsaws, so if you already own one, stick with that voltage. The 60V line is separate, so you’d need to start a new battery collection. Check our guide on Greenworks self-propelled mowers for more platform details.

Our Top Recommendation

The best overall choice is the Greenworks 80V 21-inch Brushless Self-Propelled Mower with SmartCut. It offers the most advanced features—auto power adjustment, variable speed, and a rapid charger—without sacrificing battery life. If you have a varied lawn with thick patches and open areas, the SmartCut feature alone is worth the upgrade.

For a more budget-friendly option, the Greenworks 80V Push Mower is a strong runner-up if you can handle pushing. It includes the same deck and motor but drops the drive system. If you need a blower too, the mower + blower combo kit gives you the best value for a full setup. And if you mow in wet conditions regularly, the 60V push mower’s waterproof design is a unique safety net.

No single mower fits everyone, but the 80V platform covers most needs. Check the current prices on Amazon, as they fluctuate with sales and bundles. For more comparisons, see our best 21-inch self-propelled mowers list.

Frequently Asked Questions

How long does the 4.0Ah battery actually last?

Real-world run time depends on grass height, moisture, and how often you use the self-propelled drive. In normal conditions, expect 30-45 minutes. If you’re bagging thick, wet grass, that number drops. Keep a second battery charged if you have a large lawn.

Can I use the same battery for the mower and the blower in the combo kit?

Yes, both tools use the same 80V battery platform. The combo kit includes two 4.0Ah batteries, so you can run the mower and blower without waiting for a recharge. It’s a practical setup for a full yard cleanup.

Is the SmartCut feature worth the extra cost?

If your lawn has uniform grass, you won’t notice much difference. But if you have thick patches or uneven growth, SmartCut automatically boosts power to prevent bogging down. It’s a convenience feature, not a necessity, but it does make mowing less hands-on.

Will the 60V push mower work with 80V batteries?

No, the 60V and 80V systems are not cross-compatible. Each uses a different battery design and voltage. If you already have 80V tools, stick with that platform. The 60V mower requires its own 60V batteries.