Countertop appliances assessed on wattage, capacity, mechanism and serviceability rather than preset counts.
A blade grinder chops; a burr grinder meters. That difference decides whether your coffee extracts evenly, and it matters more than the beans or the brewer.
Wattage is input power, not blending performance. Jar shape, blade geometry and whether the machine can be repaired tell you more about what it will do and how long it will last.
An air fryer is a small convection oven with a fast fan. Food has to sit in one layer for it to work, which makes the useful specification basket floor area — not the quart figure on the box.