Our take
Consider the Sharp R-220KW when a small, white microwave and clearly documented basic controls suit your kitchen. Its 0.8-cu.-ft. capacity and 800-W IEC output are specific, useful limits to compare against larger models; they are not a promise about real cooking time.
A compact footprint and straightforward microwave controls.
Choose another model if you need a larger cavity, a confirmed sensor-cooking feature, or documented trim-kit compatibility.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact family manual specifies a compact 0.8-cu.-ft. cavity.
- Sharp documents 800 W of output and a 10.75-inch turntable.
- The W suffix is documented as the white color version of the R-220K family.
What to weigh up
- The 0.8-cu.-ft. capacity leaves less stated space than the larger options here.
- Sensor cooking is not established by the cited manual, so it cannot be a verified advantage.
- No optional trim-kit route is documented for this exact model in the sources reviewed.
The key details
| Model covered | R-220KW |
|---|---|
| Capacity | 0.8 cu. ft. |
| Microwave output | 800 W IEC microwave output |
| Cooking approach | Auto-Touch; popcorn, reheat/cook, defrost and shortcut functions |
| Installation options | Home-use location instructions; no trim-kit option confirmed |
| Finish and turntable | White; 10.75-in. turntable |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
A small cavity is the defining trade-off
The R-220KW is specified at 0.8 cu. ft., which makes it the compact-capacity choice among these first reviewed models. That number describes oven volume, not a guarantee that a particular dinner plate, casserole, or rectangular container will rotate without touching the walls. Its 10.75-inch turntable gives a second, more concrete measurement, but shoppers should compare both the platter diameter and shape with their own dishes. Sharp lists exterior dimensions of 18 1/8 inches wide, 10 7/8 inches high, and 14 1/8 inches deep in the shared family manual. Allow room for the manual's ventilation clearances as well as the door swing. These are documented measurements, not an assessment of how the appliance feels on a crowded counter.
The manual describes familiar microwave controls
Sharp's Auto-Touch documentation covers manual operation, popcorn, defrost, Reheat/Cook, and shortcut functions. That gives a shopper enough information to identify the general control approach without promising a result for a particular food. The manual describes preset and timed use, but the reviewed feature list does not confirm sensor cooking for this exact model. We therefore leave the sensor-cooking matcher value unknown rather than treating a shortcut or automatic button as proof of a sensor. If sensor-based adjustment matters, compare that distinction with the Frigidaire Professional models below, whose product sheet expressly describes sensor options. Anyone choosing the Sharp should still read the preparation guidance and enter times appropriate to the food and quantity.
Use output as a specification, not a speed ranking
The manual states an 800-W rating under the IEC test procedure. Sharp's specifications also distinguish the electrical input rating from microwave output, so the figure used here is cooking output rather than total power consumed at the outlet. That makes it more meaningful than an unlabeled wattage copied into a title, but it still does not tell us how quickly every recipe will finish. Food shape, initial temperature, quantity, container, and selected settings all affect a particular heating job. The product evidence supports comparing its stated rating with another model's stated output; it does not support a claim that one will always be faster or heat more evenly in a household kitchen.
Check the location and air space before buying
Sharp describes this as a home-use microwave and advises planning counter space on at least one side, with at least two inches at the sides, top, and rear for air circulation. The guidance makes ordinary counter placement the supported reading of the manual, while also warning against installing the oven near a conventional range or wall oven. The sources reviewed do not document a trim-kit conversion for R-220KW. Do not assume that its compact size makes it suitable for a cabinet enclosure: follow the exact instructions and leave the specified ventilation space. The W suffix identifies the white version; the manual says K indicates black and W indicates white for this family. Sharp's warranty section calls it a home-use microwave, so this is not a documented foodservice model.
Who should keep it on the shortlist
This model is a reasonable shortlist candidate for someone whose priority is a compact white appliance for ordinary reheating and microwave cooking, and whose dishes fit a 10.75-inch turntable. It is less persuasive if the household regularly uses wide cookware or if a 1.2-cu.-ft. or larger cavity is a must-have. The distinction is practical: the manual supplies enough exact family specifications to describe capacity, output, controls, and clearances, but it does not support every feature a buyer might infer from the word automatic. Check the current listing against the printed R-220KW model before ordering. The historical ASIN from the source roster is not treated as proof of a current exact Amazon listing, so this guide uses an exact-model search.
What else to compare
For more cavity space, compare the 1.2-cu.-ft. Kenmore and 1.5-cu.-ft. Whirlpool profiles, keeping in mind that their output evidence differs. The Frigidaire Professional models provide larger documented capacities and explicitly described optional trim-kit routes.
Before you buy
Is the Sharp R-220KW white?
Yes. Sharp's family manual says the letter following the R-220K model identifies color, with W for white and K for black.
Does the R-220KW have sensor cooking?
The manual reviewed documents Auto-Touch shortcuts and preset functions, but it does not confirm sensor cooking for this exact model.
Can it be installed inside a cabinet with a trim kit?
A compatible trim kit is not documented in the reviewed sources for R-220KW. Follow Sharp's counter-location and ventilation instructions instead of assuming a cabinet fit.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Sharp R-209K / R-220K / R-230K operation manual ↗ — checked October 4, 2026.
- Sharp R-209K / R-220K / R-230K operation manual ↗ — checked October 4, 2026.
- Sharp R220KW manual index used to corroborate the exact suffix ↗ — checked October 4, 2026.
The decision
Shortlist the R-220KW for its compact capacity, documented 800-W output, white finish, and familiar Auto-Touch functions. Verify your cookware and counter clearances, and do not assume sensor cooking or trim-kit compatibility from the model's automatic controls or compact shape.
Is it the right fit?
Check the exact model and today’s offers on Amazon.