Head-to-head comparison

RY40HPLM04K2 vs. LM2154S

An independent, normalized comparison of the specifications and editorial scores that matter in your yard.

RY40HPLM04K2

RYOBI

RY40HPLM04K2

LM2154S

Greenworks

Decision guide

The clearest reasons to choose either model, followed by our overall winner.

Overall recommendation

RY40HPLM04K2 and LM2154S are evenly matched overall; choose by yard needs and power preference.

Side by side

Compare core specifications and normalized editorial scores. Highlighted cells show the stronger measurable result.

Show differences only

Specifications and scores for 40V HP Brushless 21" Push Multi-Blade Mower Kit and 40V 21" Self-Propelled Mower
Metric	RY40HPLM04K2	LM2154S
Core specifications
Manufacturer MSRP	Not available	Not available
Power	Battery · 40V	Battery · 40V
Deck width	21 in	21 in
Drive	Push	Self-propelled Category winner
Battery runtime	80 min Category winner	60 min
Weight	Not available	Not available

marks the stronger value for that metric. Power is judged using the normalized performance score.

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