chyawanprash
Forerunner
Not all OTGs and ovens have these but they are usually common on bigger air fryers:Ok, so what all can an air fryer do that an OTG cannot do?
1) dehydrate function
2) rotisserie function
3) even heat spread when using multiple trays
4) high speed fan to mimic deep frying
5) tons of presets (but not an issue if your OTG lets you turn on heating elements independently)
If you already have an OTG or a big oven then to scratch your itch, get a small air fryer to try fries etc which are the niche area of air fryers. If you don't have a baking machine in 2025 then buy an oven-style airfryer. It's an all in one device.