Price Guides
Every guide and comparison here is wired to the tracker: prices refresh daily, and a pick only stays a pick while its price history backs it up.
Coffee makers
Tracked coffee makers →How to choose
Which Ninja Coffee Maker Should You Buy? CM401 vs CE251 vs Hot & Cold
3 products, ranked by tracked prices and 90-day history.
Updated 2026-07-31ComparisonNinja CM401 vs Ninja CE251: Specialty Brews or a Bigger, Simpler Carafe?
The CM401 is for people who want café-style variety, meaning iced drinks, concentrated shots and a frother; the CE251 is for people who want a big, hot, programmable pot of drip coffee and nothing else.
Updated 2026-07-31Vacuums
Tracked vacuums →Buying guide
The Best Robot Vacuum Under $300 (Tracked Prices, Not Sticker Prices)
3 products, ranked by tracked prices and 90-day history.
Updated 2026-07-31ComparisonRoborock S7 vs Shark AV2501AE AI Robot Vacuum: Mopping or a Self-Empty Base?
Pick the Roborock S7 if mopping matters at all; pick the Shark AV2501AE if you never want to touch a dustbin and your floors are mostly carpet.
Updated 2026-07-31