Wattage typically ranges from about 860 W (common for rice cookers) up to 1800 W for larger countertop ovens. Frequently listed values include 1450 W, 1700 W, and 1800 W.
Most roaster ovens offer adjustable temperature control, commonly spanning roughly 150°F up to 450°F, suitable for roasting, defrosting, and keeping food warm.
Pressure cookers and similar appliances commonly list safety features such as a locking lid, a pressure indicator, and multi-point safety systems (built-in pressure release and safety interlocks) in their product details.
Many countertop toaster and air-fry ovens include 8–10 built-in presets. Typical presets shown are air fry, toast, bake, convection bake, broil, pizza, dehydrate, roast, reheat, and keep warm.
Multi-compartment roaster ovens let you cook or keep multiple dishes separate at once—useful for cooking a main roast while keeping side dishes warm. Many models include removable buffet-style trays so you can serve and hold items at different temperatures simultaneously.