Capacity determines how much food you can cook at once; most home kitchens benefit from 1.5 – 1.7 cu ft models, while RV or compact spaces may prefer 1.1 cu ft. Larger interiors, like the 1.7 cu ft GE Profile, let you fit full‑size dishes, whereas a 1.1 cu ft Sharp is ideal for smaller households. Consider the typical portion sizes you prepare and the available cabinet space before deciding.

A strong vent fan (measured in CFM) removes cooking fumes and steam; 300 CFM, like the Black+Decker model, provides robust suction for heavy cooking, while 400 CFM two‑speed fans, such as in the Black+Decker EM044KB19, give extra flexibility. Look for a vent that matches your range’s hood size and offers both high and low settings for quieter operation when full power isn’t needed.

Air‑fry capability lets you achieve crispy results with little to no oil, which can replace a separate countertop appliance. Models like the Black+Decker 6‑in‑1 and GE Profile include dedicated air‑fry modes, adding convenience and saving countertop space. If you enjoy healthier fried foods regularly, the added functionality typically justifies the higher price.

Sensor cooking automatically adjusts time and power based on humidity, delivering consistent results for reheating and delicate foods; the Sharp and Tough Grade models both feature this technology. Preset programs (popcorn, pizza, veggies, etc.) simplify everyday cooking and reduce guesswork, especially for novice users. These features add value by cutting down on trial‑and‑error and speeding up meal prep.

A standard microwave uses only microwave energy, while a convection‑microwave adds hot‑air circulation for baking, roasting, and browning. The GE PVM9179SRSS and KoolMore units provide temperature ranges up to 450 °F, enabling true oven‑like results in a compact footprint. If you want to bake casseroles or crisp pizza without a separate oven, a convection combo is the better investment.

Stainless steel offers durability, easy cleaning, and a premium look that matches most modern kitchens. Models such as the GE Profile, Sharp, and KoolMore use stainless interiors and exteriors, which also resist fingerprints and corrosion. While it may add a modest price premium, the long‑term maintenance benefits often outweigh the cost.

Compare the combination of capacity, power (watts), vent CFM, and extra functions like air‑fry, convection, and sensor cooking. For example, the Black+Decker 6‑in‑1 offers a high‑capacity 1.5 cu ft space, 300 CFM vent, and multiple cooking modes at a competitive price, whereas the GE Profile adds a larger 1.7 cu ft capacity and an extended service plan. Prioritize the features you’ll actually use to determine which model gives the best overall return.

Yes, several models are specifically designed for RV use, such as the Furrion, RecPro, and Tough Grade units, which offer compact dimensions and optional external venting. These microwaves typically have 1.5 cu ft capacity and are built to withstand vibration and limited clearance. Ensure you check the cutout dimensions and power requirements (often 120 V) before purchasing for an RV installation.