Deal verdict: is the Ninja DoubleStack XL worth it?
The Ninja DoubleStack XL is a space-saving air fryer that stacks two drawers vertically to deliver family-sized capacity while freeing up precious worktop width for smaller kitchens. This Prime Day-style air fryer Prime Day promotion is one of the strongest discounts we have seen on Ninja’s vertical stacking fryer, and in plain terms, it is worth snapping up if you have been eyeing a dual-drawer model. The Amazon-exclusive black and copper Ninja DoubleStack XL Air Fryer is now £189.99 in the retailer’s Big Prime Deal, down from a stated £269.99 recommended price, a 30% saving on the 9.5-litre model. Another listing notes it at around £190, down from an average £240. One reviewer notes it has only been this cheap during rare Lightning Deals, so this is effectively a lowest-in-months price. The offer is live in a Prime Day event until midnight on Friday 26 June, subject to stock.
Design: vertical stack vs standard dual-drawer air fryers
The core appeal of the Ninja DoubleStack XL is its upright, space-saving design. Unlike traditional dual-drawer air fryers that place baskets side by side, this model positions its two drawers vertically, making it about 30% slimmer than Ninja’s popular AF400 while keeping the same 9.5-litre capacity. That narrower, 28cm-wide body frees up worktop width, an advantage if your counter is crowded or flanked by appliances. Owners report it slips neatly under wall cabinets where wider models would feel hulking, and one user even remarks that it looks purpose-built for a tight under-cabinet gap. Do note that you are trading width for depth: the DoubleStack XL is around 47cm deep and 38.5cm tall, so you should still measure your intended space before ordering.
Capacity and cooking performance: four levels, two zones
Despite its slimmer footprint, the Ninja DoubleStack XL remains a genuine family-sized option. It offers a total 9.5-litre capacity, split between two 4.75-litre drawers that can be controlled independently. Each drawer gets its own cooking function, temperature and timer, with a Sync setting that arranges for both parts of the meal to finish together and a Match mode that clones settings across both zones for big batches. Two removable racks add an extra tier in each drawer, so you can cook across four levels at once, such as chicken over vegetables in one drawer and chips with another side in the other. Ninja says this 9.5-litre air fryer can prepare enough food for up to eight people, making it suitable for larger households, entertaining or batch cooking. In independent testing, it has earned strong praise and a recommended award from a kitchen expert.
Features, finish and everyday usability
Functionally, the DoubleStack XL covers most daily tasks. It includes six cooking modes: Air Fry, Max Crisp, Roast, Bake, Reheat and Dehydrate. Max Crisp targets frozen food at higher temperatures, while the other presets span standard meals, leftovers, baked dishes and dried snacks. According to Ninja, this double stack air fryer can cook selected foods up to 55% faster than a fan oven and use up to 55% less energy when cooking sausages, though savings will vary by recipe and appliance. The Prime Day deal applies to a black and copper finish that is both Amazon-exclusive and, according to a current owner, “by far the best-looking model available”. Practical details help too: two non-stick crisper plates, two cooking racks, silicone tongs and dishwasher-safe removable parts aim to make both cooking and clean-up straightforward.
Buy if / Skip if
- Buy the Ninja DoubleStack XL if you want a space-saving air fryer that is around 30% slimmer than Ninja’s AF400 while keeping a 9.5-litre capacity.
- Skip the Ninja DoubleStack XL if your counter is shallow or you cannot accommodate its 47cm depth and 38.5cm height beneath your cabinets.
- Buy the Ninja DoubleStack XL if you cook for up to eight people and need four-level, two-zone cooking for full family meals or batch cooking.
- Skip the Ninja DoubleStack XL if you prefer a lightweight appliance you can move daily; at 10.3kg it is better suited to staying on the counter.
- Buy the Ninja DoubleStack XL if you want an air fryer Prime Day deal at one of its lowest prices in months, with around £80 off typical pricing.
- Skip the Ninja DoubleStack XL if you do not need dual drawers or advanced features like Sync and Match and would be fine with a simpler, smaller-capacity fryer.
