Quick verdict
Two 80V mowers that do not share packs. The Ryobi finishes a flat acre fast; the Greenworks fits a normal lawn for far less and shares its battery with a real yard range. Under a half acre, the Greenworks. A flat open acre, the Ryobi.
Greenworks 80V 21-Inch Self-Propelled Mower
The Greenworks 80V 21-inch self-propelled mower is a brushless steel-deck mower with rear-wheel drive, a single blade and a 4 or 5 Ah 80V pack in most kits. It costs less, fits a normal lawn and belongs to a platform with blowers, trimmers and chainsaws.
Ryobi 80V HP 30-inch Cross Cut mower versus Greenworks 80V 21-inch self-propelled mower: deck width, coverage, batteries, maneuverability, platform and price compared from published specifications.
The picks at a glance
| Tool | Best for | Score /100 | |
|---|---|---|---|
| Greenworks 80V 21-Inch Self-Propelled Mower | Best for a Normal Lawn | 8.4 | Check price |
| Ryobi 80V HP 30-Inch Cross Cut Self-Propelled Mower | Best for a Flat Acre | 8.6 | Check price |
The picks, reviewed
Greenworks 80V 21-Inch Self-Propelled Mower
The Greenworks 80V 21-inch self-propelled mower is a brushless steel-deck mower with rear-wheel drive, a single blade and a 4 or 5 Ah 80V pack in most kits. It costs less, fits a normal lawn and belongs to a platform with blowers, trimmers and chainsaws.
Reasons to buy
- Lower price
- Fits gates, beds and slopes
- Lighter
- Greenworks 80V covers the main tools
Reasons to avoid
- Smaller pack in most kits
- Takes longer on a big lawn
- Plastic trim
Ryobi 80V HP 30-Inch Cross Cut Self-Propelled Mower
The Ryobi 80V HP 30-inch Cross Cut is a self-propelled walk mower with two blades under a 30-inch steel deck and dual 80V battery ports, built to cut an acre in one session. It is a Home Depot exclusive.
Reasons to buy
- 30-inch deck covers an acre
- Two blades
- Dual battery ports
- Strong self-propel
Reasons to avoid
- Heavy and wide
- Costs much more
- Ryobi 80V is a small platform
Where these two differ
Both say 80V and neither shares a pack with the other. The Ryobi 80V HP 30-inch Cross Cut is a wide twin-blade walk mower with dual battery ports built for an acre. The Greenworks 80V 21-inch is a normal self-propelled mower at a normal price. The Ryobi is faster on a big flat lawn; the Greenworks is the right size for most lawns and costs far less.
This comparison is based on the published specifications and manuals for both mowers and on recurring owner feedback. We have not run either mower ourselves.
| Specification | Ryobi 80V 30-inch | Greenworks 80V 21 |
|---|---|---|
| Deck | 30 inch steel | 21 inch steel |
| Blades | Two | Single |
| Battery | 80V dual port | 80V, 4 or 5 Ah |
| Runtime claim | Up to 1 acre | About 60 min |
| Price | High | Low |
| Where sold | Home Depot | Widely |
Coverage
The Ryobi covers an acre in roughly the time the Greenworks covers a half, on flat open ground. With beds, trees, a gate and a slope, the Ryobi loses time backing up and the Greenworks wins it back.
Cut quality
The Ryobi twin blades cut cleanly with a well managed overlap. The Greenworks single blade cuts evenly and slows a little in thick spring grass. Both mulch acceptably in dry conditions and both bag and side discharge.
Maneuverability
The Ryobi is heavy and wide and turns slowly. The Greenworks is light and turns around a tree in one motion, fits a standard gate and climbs a slope without strain.
Batteries and platform
Ryobi 80V runs a few big tools. Greenworks 80V runs blowers, trimmers, chainsaws and a snow blower. Neither shares packs with the other or with the smaller Ryobi lines.
Yard jobs this decides
A flat open acre with a wide gate: the Ryobi. A quarter to a half acre with beds, a gate or a slope: the Greenworks. A yard that wants blowers and trimmers on the same pack: the Greenworks.
Warranty and support
On the Ryobi 80V, Ryobi covers ONE+ tools and batteries with a three-year limited warranty. On the Greenworks 80V, Greenworks covers 80V tools with four years and packs with two. Both makers run service networks in the US and both honor the warranty only with proof of purchase, so keep the receipt with the manual. Registration takes a few minutes online and is worth doing the day the tool arrives.
Care and storage
Both are brushless battery tools and both last longest with the same habits: hose or brush debris off after each use, store packs indoors at partial charge through the winter rather than empty or full, and keep the machine out of direct sun in a shed. Neither needs oil changes, spark plugs or fuel stabilizer. A pack left at zero through a cold winter is the most common cause of a dead tool in spring on either platform.
Common owner complaints
Ryobi 30-inch owners mention weight, width through gates and battery cost. Greenworks owners mention runtime on the kit pack and plastic trim. Both are reliable.
Which one should you buy
Buy the Ryobi 30-inch for a flat acre where time per mow matters most. Buy the Greenworks 80V 21-inch for a normal lawn and a yard platform at a lower price.
Our verdict
The Greenworks 80V 21-inch takes this comparison for most lawns on fit and price. The Ryobi 80V 30-inch is the right tool for a flat acre.
How we research
This comparison is built from the published specifications, manuals and warranty terms of both products and from recurring owner feedback. We have not run either product ourselves; where the makers do not publish a figure we say so rather than guess.
What to look for
Lawn size
A flat acre favors the Ryobi; under a half acre favors the Greenworks.
Price
The Greenworks costs far less.
Obstacles
Gates, beds and slopes favor the 21-inch Greenworks.
Platform
Greenworks 80V runs more tools than Ryobi 80V.
Our verdict
Two 80V mowers that do not share packs. The Ryobi finishes a flat acre fast; the Greenworks fits a normal lawn for far less and shares its battery with a real yard range. Under a half acre, the Greenworks. A flat open acre, the Ryobi.
FAQs
No. Ryobi 80V and Greenworks 80V packs are different systems.
The Ryobi by a wide margin on flat open ground.
It is a Home Depot exclusive; the link on this page searches Amazon for comparable Ryobi mowers.
The lighter Greenworks.
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