Buy on the numbers, not the marketing.

BuyerSheet runs independent comparison sites for products where the specs are confusing and the marketing is optimistic. Each one puts every major model on one sheet — 85 products so far — and gives you a tool that answers the question that actually decides the purchase.

WattSheet

Portable power stations · 25 power stations compared

Every major portable power station from EcoFlow, Jackery, Anker and Bluetti, compared on capacity, output, weight and price per watt-hour.

Runtime calculator. Pick your devices — fridge, CPAP, router — and see which stations can run them, and for how long.
Open the runtime calculatorCompare all power stations

MowSheet

Robot lawn mowers · 30 robot mowers compared

Robot mowers from Segway Navimow, Mammotion, Dreame, ECOVACS, Worx and more, compared on lawn size, slope, navigation and price.

Yard matcher. Enter your lawn size, slope and tree cover to see which mowers can actually handle your yard — and how fast one pays for itself.
Open the yard matcherCompare all robot mowers

EbikeSheet

Electric bikes · 30 e-bikes compared

E-bikes from Aventon, Rad Power Bikes, Lectric, Velotric and more, compared on class, torque, battery, weight and realistic range.

Range estimator. Enter your weight, terrain and riding style to see how far each e-bike will really go — compared with the brand's claim.
Open the range estimatorCompare all e-bikes

How every BuyerSheet site works

  • Real specs, one sheet. Every model's numbers come from the manufacturer, normalized so they can be compared fairly.
  • A tool, not just a list. Calculators turn specs into answers: will it run my fridge, handle my hill, get me to work and back?
  • Prices checked daily. Most prices come straight from each brand's official store.
  • Rankings from data. "Best" picks are computed from the numbers. Commissions never move a product up the list.

More on how we compare →

Coming next

We add a new category when the products are expensive, spec-heavy and genuinely confusing to shop for. On the shortlist: air purifiers, EV home chargers and mini-split heat pumps.