Ninja’s Double Stack XL rethinks the countertop oven by treating it like a proper kitchen appliance. It has two independent ovens stacked vertically, each with its own heating elements and controls. This design solves the fundamental problem of cooking multiple dishes that require different temperatures and times, moving beyond the single-cavity limitations of most air fryer ovens.

You operate the top and bottom ovens separately through a straightforward button interface. The Smart Finish feature is the practical magic: tell it when you want to eat, and it calculates the staggered start times so your 4.5-pound chicken and tray of roasted vegetables finish together. The 12 cooking functions are comprehensive, but the real value is in using both zones—air frying wings in the top while toasting garlic bread in the bottom, for example.

The stainless steel build feels substantial, and the split French door design is clever for accessing just one oven. It’s a large unit, so you’ll need the counter space. For households that regularly juggle multiple dishes or want to replace a toaster and air fryer with one powerful workhorse, the Double Stack XL delivers a uniquely efficient cooking experience.