Curated decision guide

MO80L810 vs. RY40HPLM01K2

Greenworks 80V or RYOBI 40V for an 80-minute claim?

This comparison holds claimed runtime and deck class steady while showing the remaining verified differences.

MO80L810

Greenworks

MO80L810

The Greenworks MO80L810 is a 21-inch self-propelled battery mower on the 80-volt platform. Its manufacturer claim is up to 80 minutes of runtime. The verified kit includes 1 battery and a charger.

RY40HPLM01K2

RYOBI

RY40HPLM01K2

The RYOBI RY40HPLM01K2 is a 21-inch self-propelled battery mower on the 40-volt platform. Its manufacturer claim is up to 80 minutes of runtime. The verified kit includes 2 batteries and a charger.

Decision guide

Which mower should you choose?

The clearest reasons to choose either model, followed by a conditional recommendation based on the information available.

Choose MO80L810 if…

You need a mower for buyers wanting drive assistance on longer passes.
Self-propelled drive reduces manual pushing effort.
Manufacturer claims up to 80 minutes of runtime.

Read the full MO80L810 review →

Choose RY40HPLM01K2 if…

You need a mower for buyers wanting drive assistance on longer passes.
Self-propelled drive reduces manual pushing effort.
Manufacturer claims up to 80 minutes of runtime.

Read the full RY40HPLM01K2 review →

Overall recommendation

Neither mower is a universal winner. Choose MO80L810 or RY40HPLM01K2 by the yard needs, package contents, and platform facts shown below.

Match my yard

Side by side

Technical specifications

Compare known manufacturer specifications and any available editorial scores. Unknown facts stay visible instead of being estimated. A highlighted cell marks a directional measurable advantage, not a universal product winner.

Show differences only

Specifications and scores for 80V 21" 4-in-1 Self-Propelled Mower and 40V HP Brushless 21" Self-Propelled Mower Kit
Metric	MO80L810	RY40HPLM01K2
Core specifications
Manufacturer MSRP	Not available	Not available
Power	Battery · 80V	Battery · 40V
Deck width	21 in	21 in
Drive	Self-propelled	Self-propelled
Battery runtime	80 min	80 min
Weight	89.1 lb	74.8 lb Category winner
Battery platform	Greenworks Pro 80V	RYOBI 40V
Included batteries	1× 8Ah · 80V	2× 6Ah · 40V · OP40605
Included charger	6A charger	OP406A 40V Rapid Charger
Cutting-height range	1.38–4 in	1–4 in
Discharge modes	mulching, bagging, side discharge	mulching, bagging, side discharge
Warranty	battery: 4 yr, tool: 4 yr	tool: 5 yr, battery: 3 yr

marks a directional measurable advantage such as lower known price or weight, or longer claimed runtime. Other differences are preferences, not automatic wins.

Evidence standard

How to read this comparison

Price, runtime, weight, deck, package, platform, cutting-height, discharge, and warranty rows use normalized catalog facts. A wider deck, self-propelled drive, or different voltage is presented as a tradeoff—not proof of better cut quality, durability, or power.

Check each full mower review for its source list and last-checked date. Read our methodology and editorial policy.

Still not sure?

Tell us about your lawn and let the mower finder rank every model for your needs and budget.

Find my mower