The short answer
Buy an air fryer oven if you want crisping and even browning and will use the fan; buy an OTG if you want a simpler, often cheaper oven and mostly toast, bake and broil. An OTG (oven-toaster- griller) is a radiant oven that heats with still air. An air fryer oven is the same oven with a convection fan added — that one component is the entire difference, and everything the two do differently follows from it.
What the fan actually changes
It moves hot air across the food instead of letting it sit. That does two useful things: it browns more evenly, because no side is stuck facing a cold wall, and it crisps, because moving hot air pulls moisture off the surface faster — which is all “air frying” is. The Hamilton Beach Easy View XL here is a genuine convection oven at a budget price, and its fan is the reason it can call itself an air fryer at all. The mechanism is explained in full here. What the fan does not do is add power: a fan oven and a radiant oven at the same wattage cook at the same heat; the fan just distributes it.
What an OTG still does better
Simplicity, price and delicate baking. The Cuisinart Custom Classic is a full 1,800-watt radiant oven behind three knobs, with essentially nothing to fail electronically and a decade-long track record — a durability and value case a fan oven struggles to match. Its review is here. Still air also suits cakes and custards, which a strong fan can dry out or lopside; many air fryer ovens let you turn the fan off for exactly this reason. If you rarely crisp anything and value a simple, long-lived oven, the fan is a feature you would pay for and switch off.
The decision rule
Buy an air fryer oven if you want crisp fries, even roasting and the air-fry function, and will actually use the fan. Buy an OTG if you want a simpler, cheaper, longer-lived oven, mostly toast, bake and broil, and bake delicate things where still air is kinder. It is one component either way — the same oven with the fan on or off — so match it to whether crisping is actually part of how you cook.
If you want both in one box, an air fryer oven with a fan-off mode gives you the OTG when you need it — our air fryer oven ranking is here. If a plain radiant oven is enough, the toaster oven ranking covers the OTG side, and the broader air fryer vs toaster oven comparison goes deeper on the same one-component split.
How we picked
Ovens we claim to have cooked in: 0
Everyone in this category tells you they roasted forty chickens. We have roasted none, and we say so. Here is what we do instead: read the manufacturer's manual and spec sheet, record the published wattage, interior volume, temperature range and warranty term, work out what the oven costs to run for an hour and for a year, show the arithmetic so you can redo it with your own electricity rate, and cite all of it. Where a brand publishes no wattage, we print no running cost rather than borrowing a number from a similar model. Prices come live from Amazon's API and disappear rather than go stale.
The scores above are judgments from that documented research — not test results. One of the five metrics is Documentation: whether the manufacturer will tell you what its oven draws at all. The full rubric, including what disqualifies an oven, is published in full.
