Head-to-head comparison

RY40HPLM02K2 vs. LMB454

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

RY40HPLM02K2

RYOBI

RY40HPLM02K2

LMB454

Greenworks

Decision guide

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

Overall pick

Overall recommendation

40V HP Brushless 21" Self-Propelled Multi-Blade Mower Kit is our overall pick, winning 2 of 10 measured comparisons.

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" Self-Propelled Multi-Blade Mower Kit and 80V 21" GEN 2 Brushless 4-in-1 Push Mower
Metric	RY40HPLM02K2	LMB454
Core specifications
Manufacturer MSRP	Not available	Not available
Power	Battery · 40V	Battery · 80V
Deck width	21 in	21 in
Drive	Self-propelled Category winner	Push
Battery runtime	75 min Category winner	40 min
Weight	Not available	60.6 lb

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

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