Deal verdict: is the Ninja DoubleStack XL worth it?
The Ninja DoubleStack XL is a vertical stacking air fryer with two independent drawers and a four-level cooking system that aims to save counter space while still delivering a full 9.5-litre family capacity. As an air fryer Prime Day deal, the Ninja DoubleStack XL is now around £190–£189.99 in Amazon’s Prime Day event, with one listing quoting an average price of £240 and another quoting a £269.99 recommended retail price, amounting to a saving of up to £80 and around 30%. This is described as a remarkable price that has only otherwise appeared in rare Lightning deals and as the lowest level since the autumn. In simple terms: if you want a space-saving air fryer with family-sized capacity, this is a strong price and a rare window to pay meaningfully less than usual.
Price snapshot: £189.99–£190 in the Prime Day sale, versus an average £240 or a stated £269.99 RRP, for a saving of up to £80 and about 30%.
Why the vertical stacking design matters
The core reason this space-saving air fryer stands out is its vertical stacking layout. Instead of placing two baskets side by side, the Ninja DoubleStack XL stacks its two independent drawers one above the other, freeing up worktop width while still keeping that full 9.5-litre capacity. Ninja says this makes it 30% slimmer than a popular AF400-style side-by-side model while offering the same volume. For narrow countertops where a wide dual-drawer unit would dominate the space, this narrower 28cm body can be far easier to live with, even though you still need to allow for its 47cm depth and 38.5cm height. One owner notes that it tucks neatly under low-hanging cabinets, underscoring the appeal for compact kitchens with awkwardly placed cupboards.
Because each drawer operates independently, you can run different functions, temperatures and timings in each zone, then use Sync to have everything finish together or Match to duplicate settings across both drawers for big batches.
Four-level cooking and family-sized flexibility
Beyond its clever footprint, the Ninja DoubleStack XL is built to handle serious family cooking. Each drawer has a 4.75-litre capacity, and both come with removable racks, creating two levels per drawer and four cooking levels in total. That means you can, for example, cook chicken on an upper rack with vegetables underneath in one drawer, while chips and another side occupy the other drawer, all in one run. Ninja says this 9.5-litre air fryer can prepare enough food for up to eight people, which makes it suitable for larger households, entertaining and batch cooking sessions. With six built-in functions (Air Fry, Max Crisp, Roast, Bake, Reheat and Dehydrate), you can go from frozen chips to roast veg to dried snacks without switching appliances. For anyone trying to cut oven use, this combination of capacity and flexibility is a strong draw.
Style, colour options and whether you should jump now
On looks, the standout Prime Day configuration is the black and copper Ninja DoubleStack XL, an Amazon-exclusive finish that even existing owners envy. Other colourways exist, such as grey, but this specific model is the one enjoying the deeper discount. The deal is time-limited to the Prime Day sales window, with one source explicit that you have until midnight on Friday 26 June to grab it. Another notes that it has not been this cheap since the autumn and calls out that this price level has previously only surfaced in rare Lightning deals. For a vertical stacking air fryer that earns strong user ratings and is easier to leave on display than wide dual-drawer designs, this Prime Day discount is worth serious consideration if you have the space and will use its capacity.
- Buy the Ninja DoubleStack XL if you want a space-saving air fryer that fits a family-sized 9.5-litre capacity into a slimmer, vertical stacking design.
- Skip the Ninja DoubleStack XL if your countertop is too shallow for its 47cm depth or you rarely cook more than one portion at a time.
- Buy the Ninja DoubleStack XL if you like the idea of four-level cooking across two independent drawers, with Sync and Match modes for complete meals.
- Skip the Ninja DoubleStack XL if you prefer a smaller, lighter air fryer that can be moved in and out of a cupboard every day instead of living on the counter.
- Buy the Ninja DoubleStack XL if the Prime Day £80 discount and lowest-in-months pricing make this the right moment to upgrade your main cooking appliance.
