Look at the combination of functions (air fry, microwave, convection oven, etc.), the total cooking capacity, and the power rating. Also consider smart presets, ease of cleaning, and any extra accessories like separate containers or rotisserie spits. These factors affect versatility, speed, and how well the unit fits your kitchen workflow.

The Breville offers a true 3‑in‑1 setup with microwave, convection oven, and air‑fry capabilities, while the Ninja Flip focuses on 8‑in‑1 oven functions without a microwave. Breville’s Element IQ system provides precise power distribution, whereas Ninja uses infrared heating and rapid air circulation for even cooking. If you need microwave convenience, Breville is the clear choice.

A larger basket lets you cook family‑size meals or multiple items at once, but it also takes up more counter space and may consume more electricity. Models like the Chefman 12‑qt or Ninja DZ201 offer ample room for big gatherings, while compact units such as the Ninja Crispi PowerPod are ideal for small kitchens or single‑serve meals. Choose the size that matches your typical serving needs and storage constraints.

Non‑stick ceramic coatings, like those on the Cosori TurboBlaze, make cleanup quick, but you should avoid abrasive tools to preserve the surface. Removable baskets in Ninja and Chefman models are dishwasher‑safe, which simplifies upkeep. Microwave‑oven hybrids often have more interior surfaces to wipe down, so consider how often you’ll need to clean the unit.

Presets such as Breville’s 19‑button Smart Cook or Ninja’s Max Crisp reduce guesswork and deliver consistent results, especially for beginners. They can save time by automatically adjusting temperature and time for specific foods. However, if you prefer manual control, these features are optional and don’t impact the core cooking performance.

Higher wattage, like Breville’s 1200 W convection input, typically means faster heating and shorter cooking times. Models with lower wattage may still perform well but could require longer preheat or cooking periods. Assess your priority between speed and energy consumption when evaluating wattage specs.

The Ninja Flip Toaster Oven provides 8‑in‑1 versatility, a relatively compact footprint, and a 4‑lb capacity at a moderate price point, making it a strong value proposition. The Cosori TurboBlaze adds premium ceramic coating and higher temperature range but comes at a higher cost. Weigh the extra features against your budget to decide which offers the best return on investment.

Child locks, like the two‑step lock on the GE 4‑in‑1 microwave, prevent accidental operation by kids. Auto‑shutoff and temperature sensors in models such as the Breville and Ninja add an extra layer of protection against overheating. Including these safety functions can give peace of mind, especially in busy family kitchens.