Greenworks 80V 21" Brushless Cordless (S vs WORX Nitro Cordless Lawn Mower, 21" Elec
Quick Verdict
The Greenworks 80V 21" Brushless Cordless Self-Propelled Lawn Mower is the stronger choice for larger, sloped, or more demanding lawns, thanks to its higher voltage battery system and self-propelled drive. The WORX Nitro Cordless Lawn Mower, 21" with Variable Speed, is a better value for flat, medium-sized yards where you prefer manual push operation but want the flexibility of adjustable cutting speed. For most homeowners with average-sized properties, the Greenworks offers more power and convenience, but the WORX delivers solid performance at a lower price point.
Side-by-Side
| Feature | Greenworks 80V 21" | WORX Nitro 21" |
|---|---|---|
| Price | $559.99 | $429.99 |
| Power System | 80V lithium-ion (battery included) | 20V/40V/60V options (battery included) |
| Cut Width | 21 inches | 21 inches |
| Self-Propelled | Yes (variable speed) | No (push mower; variable blade speed) |
| Blade Speed | Fixed | Variable (adjustable via trigger) |
| Best Yard Size | 1/2 to 1 acre | 1/4 to 1/2 acre |
| User Rating | 4.4/5 (1,696 reviews) | 4.4/5 (244 reviews) |
Where Greenworks Wins
The Greenworks 80V model dominates in power and convenience. Its 80-volt battery delivers higher torque, making it more effective on thick, wet, or tall grass without bogging down. The self-propelled drive reduces effort on slopes and large lawns, and the variable-speed wheel drive lets you match your walking pace. With over 1,600 reviews, it has a proven track record for reliability. The larger battery capacity also means longer run times, often covering up to an acre on a single charge. For hilly terrain or yards with uneven ground, the Greenworks is clearly the better tool.
Where WORX Wins
The WORX Nitro excels in value and versatility. At $130 less, it offers a lower entry cost while still delivering a 21-inch cut and brushless motor efficiency. Its variable blade speed is a unique advantage—you can slow the blade for mulching or increase it for bagging, improving cut quality in different grass conditions. Without a self-propelled system, it is lighter and easier to maneuver in tight spaces or around flower beds. For flat, small to medium lawns (under 1/2 acre), the WORX provides ample power at a much friendlier price. The variable speed trigger also gives you direct control over cutting aggressiveness, which can extend battery life when full power isn’t needed.
Which Should You Buy
Choose the Greenworks 80V if you have a lawn larger than 1/2 acre, significant slopes, or dense grass that demands extra torque. The self-propelled drive and 80V battery make it a long-term investment for bigger properties. It is also the better choice if you prefer less physical effort while mowing.
Choose the WORX Nitro if your yard is under 1/2 acre, mostly flat, and you want to save money. Its variable blade speed gives you fine control over cut quality, and the lighter weight makes it easier to handle on smaller lots. If you don’t need self-propulsion, the WORX offers excellent value without sacrificing cutting performance.
For most buyers with average-sized, flat lawns, the WORX Nitro is the smarter buy. For those with larger or more challenging terrain, the Greenworks 80V is worth the premium.