As of February 2015, the Sharp 2.2-cubic-foot 1,200-watt full-size countertop microwave with model number R-651ZS has the highest wattage available. This microwave comes in stainless steel, white or black and has an MSRP of $189.99, according to Sharp USA.
The microwave features 11 power levels and a scratch-resistant glass front. The turntable is 16 inches, and the microwave is considered to be an extra-large model. This microwave has an LED digital display and a Keep Warm Plus feature that allows food to stay warm up to 30 minutes after microwaving. Sharp microwaves can be purchased from home goods retailers such as Best Buy.