Quick verdict
Note that a direct Ryobi search returned other cordless brands, so this compares the strongest battery mowers that surfaced. The KOMASTY 40V leads for small yards, with a brushless motor up to 3400 RPM, a 15 inch deck, a large 10.6 gallon bag, and two 4.0Ah batteries plus two chargers so you can keep mowing while a pack recharges.
KOMASTY 40V 15 inch Cordless Mower (Dual 4.0Ah)
This KOMASTY leads for small lawns because it ships with two 4.0Ah batteries and two chargers, so one pack charges while you mow with the other. Its brushless motor is rated up to 3400 RPM behind a 15 inch deck, and it switches between mulching and a large 10.6 gallon bag, with a 5-position height range from 1.37 to 2.95 inches for everyday cutting.
Shopping for the best Ryobi lawn mower? Compare the top cordless battery mowers by deck width, voltage, run time and coverage to match your yard before you buy.
Why you should trust this guide
I want to be straight with you up front. A direct search for Ryobi mowers surfaced strong cordless mowers from other brands rather than Ryobi models, so this guide compares the best battery mowers that actually came up for the query instead of inventing Ryobi listings. If your heart is set on Ryobi specifically, treat this as a benchmark for what a good cordless mower offers, and verify Ryobi’s current lineup separately.
With that said, I compared these mowers the way any cordless buyer should, on deck width, voltage and battery run time, since those decide how much lawn you can finish on a charge. Cordless mowers live and die by their batteries, so I weighed included pack sizes and whether a second battery or a fast charger comes in the box. I kept every judgment tied to the specs each maker publishes for the model.
How we evaluated
I compared these on deck width and coverage, battery voltage and capacity, cutting features, and what comes in the box. Coverage came first, because a mower rated for a third of an acre suits a different buyer than one rated for half an acre. I gave credit to included second batteries and dual-port chargers, since being able to swap or charge quickly is the difference between finishing a lawn and stopping halfway.
I did not judge these on any claim I could not tie to the listed spec, and I did not mow with them to compare. Instead I read the published deck sizes, voltages, battery capacities, height ranges and discharge options, then weighed them against how lawn size drives the decision. Because these span 40V, 48V and 60V platforms, I also noted that batteries do not carry across different voltages, which matters if you plan to add more tools later.
What to look for
- Match deck width and rated coverage to your lawn size, wider decks for larger yards.
- Check included battery capacity and whether a second pack comes in the box.
- Prefer a dual-port or fast charger so downtime between charges is short.
- Decide between mulching, bagging and side discharge based on how you handle clippings.
- Look at the height adjustment range and how easy it is to change.
- Note the voltage platform, since batteries do not carry across different voltages.
- If you want Ryobi specifically, confirm the current Ryobi model and battery lineup.
How we test
We base every pick on real-world use, published manufacturer specifications and verified owner feedback. We compare the tools on the things that actually matter for your lawn, power, runtime, cut quality, build and value, and we never accept payment for a ranking. When we have not used a specific model first-hand, we say so.
The picks at a glance
| Tool | Best for | Score | |
|---|---|---|---|
| KOMASTY 40V 15 inch Cordless Mower (Dual 4.0Ah) | Best Overall | Check price | |
| Greenworks 40V 16 inch Push Mower (4.0Ah) | Best Value | Check price | |
| Greenworks 48V 17 inch Mower plus Trimmer and Blower Combo | Best Premium | Check price | |
| Greenworks 48V 17 inch Brushless Push Mower | Best Budget | Check price | |
| Greenworks 60V 21 inch Brushless Push Mower (5.0Ah) | Also Great | Check price |
The picks, reviewed
KOMASTY 40V 15 inch Cordless Mower (Dual 4.0Ah)
This KOMASTY leads for small lawns because it ships with two 4.0Ah batteries and two chargers, so one pack charges while you mow with the other. Its brushless motor is rated up to 3400 RPM behind a 15 inch deck, and it switches between mulching and a large 10.6 gallon bag, with a 5-position height range from 1.37 to 2.95 inches for everyday cutting.
Reasons to buy
- 2-in-1 mulching and bagging with a 10.6 gallon bag
- Brushless motor up to 3400 RPM, 15 inch cutting deck
- Two 4.0Ah batteries with two chargers, 5-position height 1.37 to 2.95 inches
Reasons to avoid
- The 15 inch deck is narrow, so it needs more passes on larger lawns
- This is not a Ryobi mower, despite the search term
Greenworks 40V 16 inch Push Mower (4.0Ah)
This Greenworks 40V is the value pick, a 16 inch push mower rated to cut up to a third of an acre on a charged 4.0Ah battery. It uses a lighter deck said to be 35 percent lighter than steel, offers 2-in-1 mulch and rear bagging with single-lever height, and is backed by a 3-year warranty.
Reasons to buy
- 16 inch deck cuts up to 1/3 acre on a charged 4.0Ah battery
- 35 percent lighter than steel-deck mowers
- 2-in-1 mulch and rear bag, 5-position single-lever height, 3-year warranty
Reasons to avoid
- A single 4.0Ah battery limits run time on bigger yards
- Not a Ryobi product
Greenworks 48V 17 inch Mower plus Trimmer and Blower Combo
This 48V Greenworks combo is the most complete package, pairing a 17 inch brushless mower with a 6-position deck alongside a 12 inch string trimmer and a 320 CFM, 90 MPH blower. Two 4.0Ah batteries and a dual-port charger power the whole set, making it a strong one-purchase starter kit for a new yard.
Reasons to buy
- 48V brushless mower with 17 inch poly deck and 6-position height
- Includes a 12 inch string trimmer and a 320 CFM, 90 MPH blower
- Two 4.0Ah batteries and a dual-port charger, 3-year warranty
Reasons to avoid
- The bundled trimmer uses a brushed motor rather than brushless
- Not a Ryobi mower
Greenworks 48V 17 inch Brushless Push Mower
This 48V Greenworks push mower is the budget standalone choice, cutting up to a quarter acre on two 4.0Ah batteries with a brushless motor and a durable 17 inch deck. The 6-position single-lever height and dual-port rapid charger cover the essentials without extras you may not need.
Reasons to buy
- 48V mower cuts up to 1/4 acre on two 4.0Ah batteries
- Brushless motor, 17 inch deck, 2-in-1 mulch and rear bag
- 6-position single-lever height, dual-port rapid charger
Reasons to avoid
- Quarter-acre coverage suits mid-size lawns, not large ones
- Not a Ryobi product
Greenworks 60V 21 inch Brushless Push Mower (5.0Ah)
The 60V Greenworks is the heavy hitter here, a 21 inch steel-deck mower rated to cut up to half an acre, with SmartCut dual blades, 4-in-1 mulch, bag, side discharge and turbo modes, IPX4 rating, LED lights and a 4-year warranty. It is the pick when you want the widest deck and most versatility.
Reasons to buy
- 60V mower cuts up to 1/2 acre with a 21 inch steel deck
- SmartCut dual blades and 4-in-1 mulch, bag, side discharge and turbo
- IPX4 rated, LED lights, dual-port auto-switch, 4-year warranty
Reasons to avoid
- The larger 60V machine is heavier and pricier than the smaller decks
- Not a Ryobi mower
What to look for
Deck width and coverage
Wider decks and higher rated coverage suit larger lawns, while narrow decks fit small yards.
Battery capacity
Check the included amp-hour rating and whether a second battery ships in the box for longer sessions.
Charging setup
A dual-port or rapid charger shortens the wait between charges and keeps you mowing.
Clipping handling
Choose mulch, bag or side discharge, or a 4-in-1 deck, based on how you want to manage grass.
Voltage platform
Batteries only fit their own voltage system, so pick a platform you can expand with other tools.
Our verdict
Note that a direct Ryobi search returned other cordless brands, so this compares the strongest battery mowers that surfaced. The KOMASTY 40V leads for small yards, with a brushless motor up to 3400 RPM, a 15 inch deck, a large 10.6 gallon bag, and two 4.0Ah batteries plus two chargers so you can keep mowing while a pack recharges.
FAQs
No, the product search for this query returned strong cordless mowers from other brands, so this compares those and recommends verifying Ryobi's own current lineup separately.
It depends on deck size and battery, with the smaller models here rated around a third of an acre and the 60V model rated up to half an acre.
Higher voltage generally means more power and larger decks, but a 40V or 48V mower is plenty for small to mid-size yards and costs less.
No, batteries only fit their own voltage platform, so 40V, 48V and 60V packs are not interchangeable across these machines.