Best Ryobi Cordless Lawn Mower of 2026
Ryobi's 40V and 18V ONE+ platforms offer some of the most versatile cordless mowers on the market. We have analyzed specs, battery ecosystems, and thousands of owner reviews to find the best Ryobi cordless mower for your lawn size and budget.
Quick answer
The Ryobi 40V Brushless 21-inch (RY401140US) is the best overall for most homeowners, offering excellent cut quality and runtime. For smaller yards, the 18V ONE+ 16-inch is the best budget-friendly option, sharing batteries with Ryobi's vast tool lineup.
Why trust ToolBuyerHub
- Tested on specs (power, torque, PSI)
- Battery & ecosystem compared
- Aggregated owner reviews
- Build quality & warranty checked
- Brand reliability
- No fake hands-on claims
Research updated June 2026.
Ryobi 40V Brushless 21-inch (RY401140US)
Best balance of power, runtime, and value for medium to large lawns.
| Product | Best For | Deck Size | Battery | Rating |
|---|---|---|---|---|
| Ryobi 40V Brushless 21" | Best Overall | 21 in | 40V 6Ah | 4.7/5 |
| Ryobi 40V 20" CrossCut | Mulching | 20 in | 40V 5Ah | 4.5/5 |
| Ryobi 40V 16" | Small Yards | 16 in | 40V 4Ah | 4.4/5 |
| Ryobi 18V ONE+ 16" | Budget | 16 in | 18V 4Ah | 4.2/5 |
| Ryobi 40V 21" Smart Trek | Self-Propelled | 21 in | 40V 6Ah | 4.6/5 |
Ryobi 40V Brushless 21-inch (RY401140US)
Best OverallPros
- Excellent cut quality on all grass types
- Up to 60 minutes runtime on one charge
- 7-position single lever height adjustment
Cons
- Heavier than some competitors
- No self-propelled option
The Ryobi 40V Brushless 21-inch is the top performer in Ryobi's lineup. Owner reviews consistently praise its powerful brushless motor that handles thick, damp grass without bogging down. The 21-inch steel deck provides a wide cutting path, reducing mowing time for medium to large lawns. The included 6Ah battery delivers enough runtime for most yards under half an acre.
Where this mower truly excels is in its cut quality. The dual blade system creates a vacuum effect that lifts grass for a clean, even cut. The single lever height adjustment is quick and tool-free. Many owners report that after two years of use, the mower still performs like new, highlighting Ryobi's build quality on this model.
Ryobi 40V 20-inch CrossCut (RY401120US)
Best for MulchingPros
- CrossCut dual blade system for fine mulching
- Lighter than the 21-inch model
- Excellent bagging performance
Cons
- Smaller deck means more passes
- Battery not included with some kits
The Ryobi 40V 20-inch CrossCut is designed specifically for owners who prioritize mulching. Its unique dual blade system cuts grass twice, producing fine clippings that decompose quickly and return nutrients to the soil. Owner reviews highlight that this mower leaves no clumps, even in slightly damp conditions, which is a common issue with standard single-blade mowers.
The 20-inch deck is a good compromise between maneuverability and cutting width. It fits through standard garden gates easily while still covering ground efficiently. The brushless motor provides consistent power, and the 5Ah battery offers enough runtime for most quarter-acre lawns. Some owners note that the battery is sold separately in certain bundles, so check the package carefully before purchasing.
Ryobi 40V 16-inch (RY401016US)
Best for Small YardsPros
- Very lightweight and easy to maneuver
- Compact storage footprint
- Good value for smaller properties
Cons
- Brushed motor less powerful than brushless
- Smaller bag capacity
The Ryobi 40V 16-inch is the perfect entry point for owners with small to medium lawns. At just 45 pounds, it is significantly lighter than the larger models, making it easy to push and maneuver around flower beds and garden obstacles. The 16-inch deck is ideal for yards up to a quarter acre, and the 4Ah battery provides ample runtime for most mowing sessions.
While the brushed motor is less powerful than the brushless options, it still handles typical residential grass well. Owner reviews note that it struggles slightly in very thick or wet grass, but for regular weekly mowing, it performs admirably. The mower folds for compact storage, which is a major plus for those with limited shed space.
Ryobi 18V ONE+ 16-inch (RY18LMX40-0)
Best BudgetPros
- Shares batteries with 300+ ONE+ tools
- Extremely lightweight
- Very affordable bare tool price
Cons
- Less power than 40V models
- Plastic deck less durable than steel
The Ryobi 18V ONE+ 16-inch mower is the ultimate budget option for those already invested in Ryobi's 18V ecosystem. At just 35 pounds, it is the lightest mower in this roundup and incredibly easy to push and maneuver. The plastic deck keeps weight down and will not rust, though it is less durable than steel decks on larger models.
Owner reviews indicate that this mower is best suited for very small lawns (under 1/8 acre) and for light trimming. It uses two 18V batteries (sold separately) for power, and runtime is limited compared to the 40V models. However, for owners who already own Ryobi 18V tools, this is the most cost-effective way to add a mower to their arsenal.
Ryobi 40V 21-inch Smart Trek (RY401150US)
Best Self-PropelledPros
- Variable speed self-propelled drive
- Excellent on slopes and thick grass
- Same great cut quality as #1 pick
Cons
- Heavier and more expensive
- Self-propelled system adds complexity
The Ryobi 40V 21-inch Smart Trek is the self-propelled version of our top pick. It features a variable speed drive system that allows you to match the mower's pace to your walking speed. This is a significant advantage on sloped lawns or when mowing thick grass that requires more effort to push. The Smart Trek system uses a paddle control that is intuitive and responsive.
Owner reviews consistently rate this mower highly for its combination of power and convenience. The brushless motor and 6Ah battery provide the same excellent cut quality and runtime as the non-propelled version. The added weight from the drive system is noticeable, but the self-propelled feature more than compensates for it. This is the best choice for those with larger lawns or physical limitations.
What to check before buying a Ryobi cordless mower
Lawn size is the most important factor. For yards under 1/4 acre, the 18V ONE+ or 40V 16-inch models are sufficient. For 1/4 to 1/2 acre, the 40V 20-inch or 21-inch models are better suited. For over 1/2 acre, consider the self-propelled Smart Trek or look at higher-capacity mowers from other brands.
Battery ecosystem matters. If you already own Ryobi 18V tools, the ONE+ mower is the most cost-effective option. If you are starting fresh, the 40V platform offers more power and longer runtime, though the tools are more expensive. Ryobi's 40V batteries are also compatible with their 40V line of string trimmers, blowers, and chainsaws.
Deck material and size affect durability and maneuverability. Steel decks are more durable but heavier. Plastic decks are lighter and rust-proof but less robust. Larger decks cut more grass per pass but are harder to maneuver in tight spaces.
Mistakes to avoid when choosing a Ryobi mower
Do not underestimate the importance of a brushless motor. While brushed motors are cheaper, they are less efficient, less powerful, and have a shorter lifespan. For regular mowing, the extra cost of a brushless model pays off in performance and longevity.
Avoid buying a mower with a battery that is too small. A 4Ah battery on a 40V mower will run for about 30-40 minutes, which may not be enough for a full lawn. Always check the included battery capacity and consider buying a spare if your lawn is larger.
Do not ignore the weight of the mower. A 70+ pound mower can be exhausting to push on flat ground and nearly impossible on slopes. If you have a hilly lawn, the self-propelled Smart Trek is essential.
FAQs
Are Ryobi cordless mowers any good?
Yes, Ryobi cordless mowers are well-regarded for their value, reliability, and the extensive battery ecosystem. They are a solid choice for most residential lawns.
How long do Ryobi 40V mower batteries last?
A 40V 6Ah battery typically provides 45-60 minutes of runtime on a single charge, depending on grass thickness and mower settings.
Can I use Ryobi 18V batteries in a 40V mower?
No, Ryobi 18V and 40V batteries are not interchangeable. You must use the correct voltage battery for your mower.
Do Ryobi mowers come with a battery and charger?
Some models come as a kit with battery and charger, while others are sold as bare tools. Always check the product listing before purchasing.
Which Ryobi mower is best for mulching?
The Ryobi 40V 20-inch CrossCut is specifically designed for mulching with its dual blade system that produces very fine clippings.
How do I store a Ryobi cordless mower?
Most Ryobi mowers fold for compact storage. Store the mower in a dry place and remove the battery for off-season storage.
Are Ryobi mowers self-propelled?
Yes, the Ryobi 40V 21-inch Smart Trek is a self-propelled model with variable speed control.
What is the warranty on Ryobi mowers?
Ryobi offers a 3-year limited warranty on most cordless mowers and a 2-year warranty on batteries.
Can I bag grass with a Ryobi mower?
Yes, all Ryobi mowers come with a grass collection bag. The bag capacity varies by model, with larger bags on the 21-inch models.
How do I change the blade on a Ryobi mower?
Disconnect the battery, tip the mower on its side, and use a wrench to remove the blade bolt. Always use genuine Ryobi replacement blades.
Are Ryobi mowers quiet?
Yes, cordless mowers are significantly quieter than gas mowers. Ryobi mowers operate at around 80-85 decibels.
Can I use a Ryobi mower on wet grass?
It is not recommended. Wet grass can clog the deck and reduce cut quality. Wait until the grass is dry for best results.
Our verdict
For most homeowners, the Ryobi 40V Brushless 21-inch (RY401140US) is the best overall choice, offering the best balance of power, runtime, and cut quality. If you are on a tight budget or already own Ryobi 18V tools, the 18V ONE+ 16-inch is the best budget option. For those with larger or sloped lawns, the self-propelled Smart Trek is worth the extra investment.