Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower vs Greenworks 80V 21 inch
The Ryobi 40V HP is the safer pick for most shoppers. It ships with two 6Ah batteries and a rapid charger, runs up to 70-80 minutes, and covers about 3/4 acre per charge. The Greenworks 80V is lighter at about 60 lb and has a steel deck, but it includes only one 4Ah battery rated up to 45 minutes, and reviewers report mulching clumps and reliability faults. Prices vary by store and change often, so check the current price for each on Deal.ai before you buy.
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Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower
4.5Choose the Ryobi 40V HP if you want two batteries in the box, longer runtime, and a mower that handles up to 3/4 acre on one charge.
- Two 6Ah batteries and a rapid charger in the kit
- Up to 70-80 minutes of runtime, enough for about 3/4 acre
- Brushless motor with turbo mode for thick grass
- Folds and stores vertically
- 5-year tool warranty and lifetime deck warranty
- Heavy at 77 lb
- Polymer deck instead of steel
- Top cutting height of 4 inches is lower than some gas mowers
What separates them
| Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower | Greenworks 80V 21 inch | |
|---|---|---|
| Battery included | Two 40V 6Ah batteries plus rapid charger | One 80V 4Ah battery |
| Runtime | Up to 70-80 minutes | Up to 45 minutes with included battery |
| Deck material | Polymer composite, lifetime warranty | Steel |
| Weight | 77 lb | About 60 lb |
| Cutting height range | 1.5 to 4 inches, 7 positions | 0.4 to 8.6 cm (about 0.16 to 3.4 inches), 7 positions |
| Drive | Rear-wheel self-propelled with speed control at the handle | Self-propelled, variable speed, automatic transmission |
| Mulching and discharge | Mulch, bag, side discharge; Cross Cut blade system | Mulch, bag, side discharge; reviewers report clumping |
Price history
- Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower: lowest $639.00 on Nov 2 at The Home Depot.
- Greenworks 80V 21 inch: lowest $519.99 on Nov 2 at Amazon.
Prices at every store
Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower
- The Home DepotCheck price at The Home Depot
Specs compared
| Spec | Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower | Greenworks 80V 21 inch |
|---|---|---|
| Mower Type | Walk Behind | Walk Behind, Lawn Mower |
| Power Source | Battery, Cordless | Battery |
| Drive Type | Self-Propelled | Self-Propelled |
| Self Propelled | Yes | Yes |
| Cutting Width | 21" | 21 in |
| Bagging | Yes | Yes |
| Cutting Height Options | 7-Position | 7 positions |
| Maximum Cutting Height | 4" | 8.6 cm |
| Minimum Cutting Height | 1.5" | 0.4 cm |
| Mulching | Yes | Yes |
What reviewers say
Ryobi 40V HP 21-Inch Self-Propelled Lawn Mower
Owner feedback on the Ryobi 40V HP 21-inch mower is largely positive, with buyers calling it a credible gas replacement for medium lawns. Complaints center on weight and real-world runtime in heavy grass.
- Quiet, no gas or oil maintenance
- Self-propelled drive handles slopes well
- Two batteries cover most 1/2 to 3/4 acre yards
- Easy folding and vertical storage
- Heavy at 77 lb
- Runtime falls short in tall or wet grass
- Plastic deck and wheels feel less sturdy than metal
- Batteries take time to recharge for a second pass
Greenworks 80V 21 inch
Reviewers are split. Some praise the power, cutting performance and versatility, while others report poor mulching, reliability failures and a frustrating mowing experience.
Questions and answers
- Which is better for a 3/4-acre lawn?
- The Ryobi. Its two 6Ah batteries give up to 70-80 minutes, which Ryobi rates for about 3/4 acre. The Greenworks runs up to 45 minutes on its single 4Ah battery.
- Is the Greenworks 80V more powerful?
- On paper the 80V system runs at higher voltage, but both use brushless motors and 21-inch decks. Reviewers say the Greenworks cuts well, yet some report mulching clumps and reliability faults.
- Which is easier to push and store?
- The Greenworks is about 17 lb lighter. The Ryobi folds its handles and stands vertically for compact storage.
- Does the Ryobi come with more than one battery?
- Yes. The kit includes two 40V 6Ah batteries and a rapid charger. The Greenworks kit includes one 80V 4Ah battery.
- Which has the better warranty?
- Ryobi states a 5-year tool warranty, 3-year battery warranty, and a lifetime warranty on the composite deck. The Greenworks listing states no warranty.
- Is the Ryobi worth the extra money?
- Compare current prices on Deal.ai. The extra battery and longer runtime usually justify a higher price if your lawn is near 3/4 acre.