Which is better for pizza?

The Instant Pot. It fits a 12-inch pizza, has fresh and frozen pizza modes, and reaches 500°F with no preheat. The Oster has no pizza function and tops out at 450°F.

Which toasts more bread at once?

The Instant Pot handles 6 slices; the Oster handles up to 4. If you toast for a family, the Instant Pot saves batches.

Which is better for air frying?

The Oster. Air fry is a listed cooking method and it has three rack positions. The Instant Pot's six functions do not include air fry.

Is the Instant Pot worth the extra money?

At $129.95 at Crate & Barrel as of November 8, 2026, it buys higher heat, no preheat, pizza capacity and a 4.8 rating. The Oster's price was not provided, so check it before deciding.

Neither listing states a warranty or expected life. The Instant Pot adds auto-shutoff and overheat protection, which help protect the unit during high-heat use.

Which takes less counter space?

The Oster is 18.8 in wide and 11.8 in tall; the Instant Pot is 14.57 in wide but 19.72 in deep. The Oster is shorter, the Instant Pot is narrower but deeper.

Oster Compact Countertop Oven with Air Fryer vs Instant Pot InstantHeat Pizza Oven

The Instant Pot InstantHeat is the better pick for most shoppers. It hits 500°F, needs no preheat, fits a 12-inch pizza or 6 slices, and costs $129.95 at Crate & Barrel as of November 8, 2026. The Oster is the smaller, cheaper-feeling air fryer oven with a 3.6 rating from 25 ratings; its price was not provided, so compare it at checkout. Buy the Oster only if you want a compact air fryer with three rack positions and knob controls.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.