The Ninja Foodi Max 6-in-1 DG551UK is a compact hot air fryer designed to take the hassle out of weeknight meals. With a 3.8-litre capacity and a bundle of useful accessories, it aims to replace your grill and oven for smaller portions.
Ninja has built a solid reputation in the UK for powerful, easy-to-use kitchen kit, and this model follows that pattern with simple button controls, a clear display and six custom cooking programmes. It’s not a bargain-basement fryer, sitting towards the premium end of the single-drawer market, but you’re paying for more than just crispy chips.
Backed by a strong 4.7 out of 5 user rating from dozens of reviews, it’s clearly pleasing most owners, particularly those who want reliable results without constantly checking and guessing cooking times.
The Ninja Foodi Max DG551UK is best suited to small to medium households that want an air fryer for daily use rather than the odd batch of chips. The 3.8-litre basket is ideal for two people and can stretch to three if you’re mindful of portion sizes.
It’s a good fit if you’re happy to pay a bit more for convenience. The built-in digital cooking probe, automatic programmes and clear display make it reassuring for anyone nervous about undercooking meat, or constantly cutting into chicken to see if it’s done.
If you’re new to air frying, the simple button controls, recipe guide and non-stick, dishwasher-safe components keep the learning curve low. You get the core air fry, grill and bake functions without having to master complex menus.
Larger families, or anyone who batch cooks regularly, may find the 3.8-litre capacity limiting and might prefer a dual-drawer or larger-basket model. But for couples, downsizers and busy professionals wanting quicker, healthier-feeling meals, this is a very strong option.
The 3.8-litre capacity hits a sweet spot for everyday cooking, giving you enough room for a couple of chicken breasts, a tray of vegetables or a decent portion of chips without dominating the worktop.
Six customisable cooking programmes and a built-in thermostat take a lot of guesswork out of the process. Combined with the digital cooking probe, it’s far easier to hit perfect doneness on meat and fish than with a basic air fryer.
Accessories are generous: you get a 3.8L cooking pot, crisper basket and an XL ceramic-coated grill plate, which broadens what you can cook from sausages and steaks to baked dishes. The non-stick finish and dishwasher-safe components make cleaning up quick and painless.
Safety and stability are well thought through. Auto power-off, non-slip feet and clear indication lights all contribute to a more relaxed cooking experience, especially in a busy kitchen.
For a single-drawer, 3.8-litre air fryer, the pricing is on the higher side, largely due to the probe and grill-style features. If you just want a basic chip-maker, this may feel like overkill.
The capacity will be restrictive for larger families or big batch cooks. You can work around it by cooking in stages, but that undermines some of the time-saving appeal.
There’s no keep warm function or steam option, which some multi-cookers now offer. They’re not essentials, but at this price a keep warm setting in particular would have been welcome.
Finally, while the core components are dishwasher-safe, the unit itself is relatively tall at 40cm, so it may feel bulky under low cupboards despite its modest footprint.
Day to day, the Ninja Foodi Max DG551UK is straightforward to live with. The button-based controls and integrated display make it clear which programme you’re on and how long is left, so you’re not endlessly pressing through confusing menus.
The included crisper basket and grill plate slot neatly into the 3.8L pot, and the non-stick finish makes food release easy; most of the time a quick wipe is all that’s needed. When things are messier, the dishwasher-safe components save you from scrubbing.
The 1.05m power cord is long enough for most worktops without excess trailing cable. Non-slip feet help keep the fryer steady when you pull the basket out to shake or check food.
Because it uses hot air and a sealed cooking area, odours are reduced compared with traditional frying, though there’s no dedicated anti-odour filter. The auto shut off means that if you forget you’ve put something on, it’ll stop cooking at the end of the programme, which is reassuring if you’re prone to distractions.
With 1760 watts of power, the Ninja Foodi Max DG551UK heats quickly and circulates hot air efficiently around the 3.8-litre basket. That translates into crisp chips, evenly browned vegetables and well-seared meats in noticeably less time than a conventional oven.
The six customisable cooking programmes, combined with a thermostat and digital display, give you consistent results without constant tinkering. Automatic cooking programmes mean you can set, walk away and trust it to shut off at the right time.
One of the standout features is the digital cooking probe. Being able to check internal temperatures while cooking is a big confidence boost for chicken, joints and steaks, reducing the risk of overcooking just to be safe. It nudges this model towards grill and mini-oven territory rather than being just a basic fryer.
Beyond air frying, the ability to bake opens up options for traybakes, small cakes and reheating leftovers with better texture than a microwave. The non-stick ceramic-coated grill plate is designed to give more defined grill marks and improve airflow, which helps with both flavour and presentation.
Practical touches such as indication lights, auto power off, non-slip feet and the included recipe guide round out the package. You don’t get extras like steam cooking or keep warm, but the core feature set is strong and very focused on reliable everyday cooking.
At around £230, the Ninja Foodi Max DG551UK is priced as a premium single-drawer air fryer. There are cheaper models with similar capacity, but few at this size that bundle in a digital probe, a grill-style plate and this level of finish.
If you’ll make use of the probe for meat and fish, and genuinely plan to replace a lot of your oven and grill use with the air fryer, it justifies its higher price through time savings, energy efficiency and more reliable results.
The strong 4.7/5 user rating from a solid number of reviews suggests owners feel they’re getting good value once it’s in regular use. For occasional users or those who only want to reheat frozen snacks, though, a simpler, cheaper air fryer would likely make more financial sense.
The Ninja Foodi Max 6-in-1 DG551UK is a well-rounded, confidently specified air fryer aimed at households that cook from scratch and want reliable, repeatable results. Its 3.8-litre capacity, powerful 1760W heater and smart accessories make it a big step up from entry-level models.
The digital cooking probe, automatic programmes and easy-clean, dishwasher-safe parts add up to a user-friendly experience that suits both beginners and more experienced home cooks. The main compromises are the relatively small capacity for bigger families and the premium price for a single drawer.
If you’re a couple or small household looking to make an air fryer the workhorse of your kitchen, and you value precision and convenience over sheer volume, this Ninja is an excellent choice. If you regularly cook for four or more, it’s worth considering a larger or dual-zone model instead.
