Start with the display type. A touch panel, LCD or LED screen shows the countdown. All five models here use digital controls, so the difference lies in what sits behind the screen.
Count the presets next. The Philips NA231/00 lists 13. Pigeon, Prestige and American Micronic list eight. The Philips HD9252/90 gives no count. Prestige names its eight dishes, while Pigeon and American Micronic list menus without a dish list. Pick the model whose named presets match what you cook.
Then check the missing numbers. Pigeon gives no timer range. Philips NA231/00 gives no temperature or timer. American Micronic gives only an upper limit. Prestige gives no timer. Confirm these on the retailer page.
A cook who wants a display without extra complexity can start with the Philips Digital Airfryer HD9252/90 4.1L. It lists 1500 watts, a 0-60 minute timer and an 80-200°C range, though its highlights give 60-200°C. The Pigeon Healthifry Digital Air Fryer suits people who plan meals ahead, since it adds a defrost option and an appointment function.
A cook who makes the same dishes each week should look at the Prestige Nutrifry 4.5L Digital Air Fryer. Its presets are fries, grill, samosa, pizza, chicken, cake, veggies and reheat/defrost. Prestige says a built-in safety interlock stops operation when the basket is removed. The basket is non-stick, and the warranty is one year.
A big family has two choices. The Philips Air Fryer NA231/00 6.2L offers 13 preset modes and a cooking window. The American Micronic 6.5 L Digital Air Fryer lists 1700 watts, an LCD touch display and a cool-touch handle. It has the larger basket of the two.
Warranty rarely separates these models. Philips, Pigeon and American Micronic each give two years, and Prestige gives one. Pigeon says its warranty applies to manufacturing defects.
Window and basket notes differ too. Philips says the window on the Philips Air Fryer NA231/00 6.2L lets you monitor cooking progress. The pages for the Philips HD9252/90 and the Pigeon do not list a window. Prestige lists a non-stick basket. American Micronic lists a cool-touch handle, and its page gives no cord length.
Power is another number to compare. The American Micronic lists 1700 watts. The Pigeon and the Philips HD9252/90 list 1500 watts, and the Prestige lists 1200 watts. The Philips NA231/00 gives no power figure, so ask the seller before you plan around it.
Basket size sets the batch you can cook. American Micronic says its model suits 5-6 persons. For other choices, read the best air fryer, best air fryer for home and best air fryer brand guides. Oven-style options sit in the best air fryer oven guide, and the best Philips air fryer guide covers that brand.