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Guide

Are Robot Mowers Worth It? The Cost Math

Purchase price, blades, batteries and your time, against a lawn service. Plug in your own numbers.

By Robot Yard Guide Editors · Updated November 3, 2026 · 3 min read

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A robot mower costs more up front than a push mower and less than many riding mowers. Whether it pays off depends on what you'd otherwise spend in money and time. Enter your own numbers below.

Cost calculator

Robot mower
The alternative
Robot total–
Lawn service total–
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Example figures. Replace them with your own quotes and prices; nothing you enter is saved or sent anywhere.

What a robot actually costs to run

  • Purchase: from about $800 (Navimow i105) to $3,300 (LUBA 3 5000) for the models we track.
  • Blades: small pivoting razor blades are replaced regularly; packs are inexpensive.
  • Cellular service: some brands include several years of 4G. Segway's Connect+ costs $32.90 a year after the free period on the X4.
  • Electricity: small. These are low-wattage machines that charge for an hour or two at a time.
  • Battery: lithium packs lose capacity over the years. Budget for a replacement eventually.

The time you get back

If you mow yourself, the bigger return is time. An hour a week over a 28-week season is 28 hours a year, or 140 hours over five years.

When it isn't worth it

  • Your lawn is tiny and quick to push-mow.
  • You enjoy mowing.
  • Your yard is mostly too steep, rough or fragmented for any robot.
  • You'd still need a service for edging, leaves and cleanup, which a robot doesn't replace.