Ninja
Foodi Dual Zone Series
Dual zones for smart cooking, but baskets are small.

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I got the stacked dual basket from philips (4000 series). I am very happy with how little counter space it needs (it vents on the left side, so as long as nothing is on that side it really takes up just 23cm width).
Philips 4000 series is stacked and has heating elements on the top, with fan at the back. I mostly love that I can turn on the light for a quick look inside without having to open the basket.
Same here, I like the look and how little space it takes up. Hope it serves you well.
I got the philips 4000 priced air fryer off blinkit. It was an impulse buy. I fucken love it. I barely cook since I live on my own and do the bare minimum when it comes to any sort of meal prep beyond making maggi or coffee. There are a ton of frozen stuff on blinkit that works really well in an air fryer and I've actually made my own food more than 30 times this month so far. Garlic cheesy garlic bread is probably my favourite. I've even ventured into the trend of using rice paper to wrap sausages or veggies and making a pseudo sausagepuff, but my rolling skills aren't what they used to be. It does seem to use a lot of electricity, my recent power bill for the last 2 months was 12k and the only differences in the past couple of months was that I used the ac a whole lot more than normal and had my desktop switched on almost 24/7 and then this air fryer. Get one of those oil spray bottles if you do decide to get one it'll be handy.
The stacked air fryers blow heat from the back side instead of from above like every other air fryer. It usually results in uneven cooking unless you regularly rotate the food. The Ninja Dual Zone is probably the most popular air fryer ever. I have the Ninja Flex Basket which is very similar and it works great. High quality brand. The window thing seems cool but it's just as easy, and actually better, to just pull the basket open and look.
Very happy with the 4000 as well. No steam/self cleaning but very compact and still has decently sized baskets
I was in a similar situation recently and looked at the stacked basket models too. The Philips 4000 Dual Basket actually ended up being my pick for a few reasons. First, Philips has been doing airfryers for a long time and they basically pioneered the category. The reliability and build quality tend to be really solid, which mattered more to me than the extra 30°C max temp. In practice I rarely cook above 200°C anyway since most recipes sit around 180–200. The viewing windows are also more useful than I expected. Being able to quickly check browning without opening the basket (and losing heat) is surprisingly convenient. Another thing I liked about the Philips stacked design is that it’s compact for a dual-basket. A lot of dual airfryers take up a huge amount of counter space side-by-side, while the stacked format keeps the footprint smaller. Parts availability was also a factor for me. With Philips you can usually find replacement baskets, trays, and accessories pretty easily online, even years later. That gave me a bit more confidence long-term. Ninja is definitely a legit brand and plenty of people like them, but personally I leaned toward Philips because of the longer track record with airfryers and easier parts support.
If you want something that actually ticks all those boxes : easy to clean, durable for daily use, kid‑friendly, and good at both reheating *&* cooking, you might want to look at the Philips 5000 Series Airfryer with Steam. It comes in a dual‑drawer setup, so you can cook two things at once without mixing flavours. The steam function is a big win for cleaning because it basically self‑cleans using steam, which saves a ton of scrubbing. It also has preset buttons for cooking, reheating, and steaming, so it’s simple enough for kids to use without messing anything up. If you’re open to switching from oven‑style to basket‑style, this one is a solid upgrade in terms of convenience and day‑to‑day practicality. If bench space is something you’re trying to manage, the Philips Dual Stacked model is also a really strong option. It has great reviews and gives you a lot of capacity without taking up as much horizontal space. Both are solid picks depending on what matters most to you.
I wanted small one, because I also don't have too big kitchen. I bought Philips NA460 (series 4000). I choosed it because it's not so wide. It's pretty tall as for airfryer but I'm not going to stack anything on it so it doesn't matter. It's also longer than most but for me that's not an issue. It's still not extremely long. It has two baskets so you can make frites and meat at the same time. It's 2x5L. They say 3-4 persons but I don't know in what world. It's enough for me, my girlfriend and our toddler for decent meal. I'm pretty happy but for next one I will buy something bigger. I'm planning renovation of kitchen so we will have more working space in future.
Ninja
Foodi Dual Zone Series
Dual zones for smart cooking, but baskets are small.

COSORI
Turbo Blaze 9-in-1 6QT
Quiet, easy to clean, but lacks a viewing window.

Ninja
Foodi Air Fry Oven Series
Flips up to save space, but shallow and air fries poorly.

Breville
Smart Oven Air Fryer Series
Oven replacement; spacious, but air frying and cleaning divide users.

Typhur
Dome
Self-cleaning and quiet, but expensive with shallow interior.

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Ninja - Crispi Pro 6-in-1 Countertop Glass Air Fryer

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Breville - Smart Oven Air Fryer Series

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COSORI - Turbo Blaze 9-in-1 6QT

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Ninja - Crispi Pro 6-in-1 Countertop Glass Air Fryer

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Ninja - Foodi Air Fry Oven Series