Machines · what the machine is
An element and a fan
This is the category where a machine description and a shelf category come apart most visibly. Three different arrangements are sold under one heading here, and the listings themselves are the evidence for it.
Three arrangements, one shelf
Most of the listings filed here describe a single removable basket with a powered lid above it. Two describe countertop ovens with a door, a cavity and an air fry setting among their modes. One describes a powered lid used over glass containers rather than a fitted basket.
This site keeps those three apart in their own subgroups and does not call the ovens basket fryers. That is not a judgment about any of them. It is a refusal to let a shelf heading stand in for a description.
What the numbers attach to
Capacity attaches to the container, and the container is exactly the part that differs between the three arrangements, which is why this category states its capacities in four different units. The in-one figure attaches to the control panel. The wattage attaches to the element. The preset figure attaches to the control panel too, and only two listings here state one.
The result is a category where two listings can share a wattage, share nothing else, and sit in the same subgroup.
What this site does not say
There is nothing here about what to put in one of these, at what temperature, for how long, or with what result. The stated temperature figures on these pages are the ranges the listings claim for the machines, not recommendations, and this site does not turn them into recommendations.
What does not change when the count changes
The arrangement. A basket machine has one container and a lid that holds the element and the fan. Renaming the modes, raising the in-one figure or adding a preset count does not rearrange those parts.