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Guides, comparisons and trackers
Everything we publish, organized by what you're trying to decide.
Buying guides by job
Clean my floorsRobot vacuums and mop docks, $249.99–$999.99.
Clean my poolCordless and corded pool robots.
Mow my lawnRobot mowers by yard size, slope and trees.
Help a parent live alone safelyMedical alerts, watches and camera-free options by refusal reason.
Technology comparisons
Boundary wire vs RTK vs LiDAR vs visionHow robot mowers find their way, and where each fails.
Cordless vs corded pool robotsBatteries, outlets, waterlines and long-term cost.
Medical alert types: who answers?Buttons, voice, watches, apps and ambient sensors.
Tools and trackers
Working System BuilderUp to three complete systems in four questions.
Robot vacuum worth-it calculatorYour time vs the 3-year cost.
Robot Graveyard11 case files on robots that died, stalled or were orphaned.
Announced vs available14 humanoids, preorders and prototypes, tracked without buy buttons.
The FCC robot rule, explainedWhat changed on July 28, 2026, and what it means for buyers.
Updates logEvery price change, correction and recall, dated.
Last checked . See what changed.