Head-to-head comparison

LM2138S vs. LMB454

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

LM2138S

Greenworks

LM2138S

LMB454

Greenworks

Decision guide

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

Overall pick

Overall recommendation

80V 21" 3-in-1 Self-Propelled Mower 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 80V 21" 3-in-1 Self-Propelled Mower and 80V 21" GEN 2 Brushless 4-in-1 Push Mower
Metric	LM2138S	LMB454
Core specifications
Manufacturer MSRP	Not available	Not available
Power	Battery · 80V	Battery · 80V
Deck width	21 in	21 in
Drive	Self-propelled Category winner	Push
Battery runtime	45 min Category winner	40 min
Weight	71.65 lb	60.6 lb Category winner

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

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