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Head-to-head comparison

RY40HPLM08K vs. LM2154S

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

RY40HPLM08K
Product illustration for RYOBI model RY40HPLM08K

RYOBI

RY40HPLM08K

LM2154S
Product illustration for Greenworks model LM2154S

Greenworks

LM2154S

Decision guide

Which mower should you choose?

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

Choose RY40HPLM08K if…

    Read the full RY40HPLM08K review →
    Overall pick

    Choose LM2154S if…

      Read the full LM2154S review →

      Overall recommendation

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

      Match my yard
      Side by side

      Technical specifications

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

      Specifications and scores for 40V HP Brushless 20" Self-Propelled Multi-Blade Mower Kit and 40V 21" Self-Propelled Mower
      MetricRY40HPLM08KLM2154S
      Core specifications
      Manufacturer MSRPNot availableNot available
      PowerBattery · 40VBattery · 40V
      Deck width20 in21 in Category winner
      DriveSelf-propelledSelf-propelled
      Battery runtime55 min60 min Category winner
      WeightNot availableNot available

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

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