A basic air fryer crisps food and stops there, which is fine if crisp food is all you want. The pitch for a multi-function model is bigger: it bakes, roasts, dehydrates, toasts, and reheats, so it can quietly retire two or three other gadgets and hand you back the counter they were hogging. The catch is that a long list of modes on the box does not mean you will touch most of them.
So the useful question is not how many functions a machine claims. It is which specific appliances it can actually replace in your kitchen, and whether you will genuinely use the modes that do the replacing. The five picks below range from a tidy do-most-things unit to a sprawling oven that covers nearly every method imaginable. Buying well means matching that range to how you really cook.
Best multi-function pick for most people: the Cosori. A broad spread of useful modes, the widest heat range here, an easy-clean coating, and the highest owner rating, all in a footprint that does not take over the counter.
Start with the appliances you'd retire
If you want one machine that does most jobs well without dominating the kitchen, the Cosori is the default, with a broad set of modes and the highest owner rating here. If you cook in bulk and want a multicooker-style workhorse, the big Instant Pot is the value play. The two-zone Ninja is the pick when you routinely cook two dishes at once. The oven-style Ninja exists mainly to retire your toaster as well, and the Emeril is for the cook who will actually use a sprawling range of modes and has the counter for it.
Be honest about which modes you will use. Most people lean on air fry, bake, and reheat and never touch the rest, so paying for the longest function list only makes sense if proofing, dehydrating, and specialty bakes are real parts of your week.
The Cosori is the one most people should buy. It covers the modes you actually reach for, air fry, bake, roast, reheat, dehydrate, and more, with the widest heat range on the list, so it handles gentle warming and high-heat crisping equally well. Its ceramic-style coating wipes clean easily and skips the older nonstick chemistry, and it carries the highest owner rating here, all in a footprint that stays reasonable. For a kitchen that wants real versatility without a giant appliance, this is the sweet spot.
It is a little less of a household name than the Ninja, and the spread of modes means a slightly longer learning curve at the start. Neither is a real obstacle. If you are choosing on capability and rating rather than the name on the front, the Cosori is the smart all-rounder.
Skip this if you only ever air fry, where a simpler basket fryer does the same job for less.
Cosori TurboBlaze 9-in-1
The Instant Pot is the high-capacity workhorse, and it is the most-reviewed machine in this group by a wide margin, which puts a deep track record behind it. Its large basket cooks a whole meal in one go, and its even-crisping design keeps results consistent across that bigger space. The brand built its reputation on reliable multicookers, and that engineering carries over here, which is part of why so many owners trust it for everyday batch cooking.
It brings a solid set of modes rather than the longest list, and its size is the trade-off, the largest single basket here, heavy to lift when full. For a household that cooks in volume or preps meals for the week, the capacity and the value per serving are the draw. For a small kitchen or a light cook, it is more machine than you need.
Instant Pot 10 Qt
The two-zone Ninja ties for the top rating here, and its multi-function angle is unusual: instead of more modes, it gives you two independent baskets that run at different temperatures and finish together. That turns “multi-function” into something you feel every dinner, a main in one side and a side dish in the other, done at the same moment with no juggling. For households whose meals are always combinations, that is the most useful kind of versatility.
Each basket is smaller than a single large one, so you trade the ability to cook one big item across the whole machine. If you mostly cook a single food in bulk, a single-basket unit suits you better. If your plates are protein-plus-side most nights, this is the pick that earns its keep.
Ninja DZ201 Dual-Zone
The oven-style Ninja is the consolidation pick, and its standout job is replacing your toaster as well as your air fryer. It has proper toast and bagel settings, a larger interior that takes a full sheet pan or a pizza, and a body that folds up against the wall when idle to free the counter. For a kitchen short on space that wants fewer gadgets, retiring two appliances into one that also stows away is a genuine win.
The costs are a longer warm-up than a basket fryer and slightly gentler crisping on small portions, owing to the roomier interior. For a household that toasts and bakes as much as it air fries and wants to clear an appliance off the counter, the math works. For maximum crispness on air-fried food specifically, a dedicated basket like the Cosori still leads.
Ninja SP151 Oven Combo
The Emeril French-door oven is the maximalist choice. It packs by far the widest range of cooking methods on this list inside the largest interior, so it can stand in for a remarkable number of separate tools, if you actually use them. The French doors open one-handed, handy with a hot tray in the other hand, and it swallows a pizza, a full sheet of cookies, or a large roast with room to spare.
The honest caution is the one this whole guide is built around: most people use a handful of modes and ignore the rest, and this asks for the most counter space of anything here. For a committed cook who will genuinely reach for proofing, dehydrating, and specialty bakes, the depth is the value. For someone who mainly wants crisp food, it is more oven than they will ever use.
Emeril French Door 26 Qt
The trade-off the box won't tell you
Function count is the number that sells these machines and the number that misleads you. Past a basic set, air fry, bake, roast, reheat, and maybe dehydrate, extra modes add little for most households because most households never use them. A unit with a modest, well-chosen spread that you will actually touch beats one with a long list that mostly gathers dust, and it usually costs less and takes less room too.
So weigh capability against honesty about your own cooking. The Cosori covers the real-use modes for most people. The two-zone Ninja turns versatility into a daily convenience for combination meals. The oven-style picks are about retiring other appliances, the Ninja for the toaster and tight counters, the Emeril for the cook who truly ranges across methods. Buy the range you will use, not the range that looks most impressive.
How to choose in a minute
Name the appliances you would actually retire. Want one capable machine that does not take over the kitchen? The Cosori. Cook in bulk and value a proven workhorse? The big Instant Pot. Always cooking two dishes that finish at different times? The two-zone Ninja. Want to also lose the toaster and reclaim the counter? The oven-style Ninja. Will you genuinely use a sprawling set of modes and have the room? The Emeril. And remember that the longest function list is worth paying for only if those extra modes are part of how you really cook.
What does multi-function actually mean on an air fryer?
It means the machine includes several cooking modes beyond air frying, typically bake, roast, reheat, and dehydrate, sometimes adding toast, broil, proof, and others. Each mode adjusts heat, fan, and timing. The picks here range from a focused set of modes to a very long list.
Are machines with the most functions worth it over simpler ones?
Only if you will use the extra modes. Most people rely on air fry, bake, and reheat and never touch the rest, so the longest function list mainly pays off for cooks who genuinely proof dough, dehydrate, and use specialty bakes. Otherwise a focused machine is the better value.
Can a multi-function air fryer replace my toaster?
The oven-style picks can, since they have real toast and bagel settings, the oven-style Ninja and the Emeril among them. Basket-style fryers can warm bread but lack a proper toaster slot, so thick bread and bagels do not fit the way they would in a dedicated toaster.
Do multi-function fryers cook differently from single-function ones?
The air-fry mode itself is the same. The difference is the added bake, roast, broil, and dehydrate modes that a simple basket fryer cannot do. If you only want air-fried food, a basic basket fryer performs just as well as a multi-mode unit at the same size.
How long do multi-function air fryers last?
Quality units from the established brands here run for years of regular use, with the heating element being the usual eventual failure point. Most carry a warranty with an extension option. A multi-function unit does not wear out differently from a simple one, since it uses the same core heating technology.