Our take
Sharp R459YW is a white 1.3-cu.-ft. countertop model with 1,000-W output, sensor cooking and a documented 12.75-in. turntable.
Choose R459YW when a white countertop microwave with sensor cook/reheat and a 12.75-in. tray suits the cookware and available counter space. Compare Sharp R-320HW if higher listed output matters more than a little extra capacity: it lists 1,200 W in a 1.2-cu.-ft. cavity and also has sensor controls. Neither model should be mistaken for a 1.5-cu.-ft. large-sensor option..
Choose a model with at least 1.5 cu. ft. if that is a hard requirement; R459YW has a smaller listed cavity and no documented trim-kit route.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact model record documents sensor cook and sensor reheat.
- It lists 1,000-W output and 120-V/60-Hz supply as separate specifications.
- The white finish and removable 12.75-in. glass tray are identified.
What to weigh up
- Its 1.3-cu.-ft. cavity is below the large-capacity question's 1.5-cu.-ft. threshold.
- No optional trim kit is listed for this exact model.
- The historical Amazon ASIN has not been verified as an exact current listing.
The key details
| Model covered | R459YW |
|---|---|
| Capacity | The exact model record lists a 1.3-cu.-ft. countertop cavity. |
| Microwave output | Microwave output is 1,000 W; the source separately lists 120-V/60-Hz electrical supply. |
| Cooking approach | Sharp documents sensor cooking, sensor reheat, auto/time/weight defrost and ten power levels. |
| Installation options | The exact-model record lists countertop installation and no trim kit. |
| Finish and turntable | The white model has a removable 12.75-in. glass turntable. |
Performance figures are manufacturer claims. Source checked October 11, 2026. Regional models and included accessories can differ.
What the features mean for you
Will the 1.3-cu.-ft. cavity fit your usual dishes?
Sharp's R459YW sheet and the exact-model specification record list 1.3 cubic feet and countertop placement. That is more stated volume than a 0.7- or 1.0-cu.-ft. compact model, but it does not guarantee a particular casserole or plate will fit. The exact record also gives a 12.75-in. removable glass turntable, which is a more useful check for round cookware. Measure both the dish base and the microwave's rotating path rather than selecting by the capacity number alone.
What do its sensor programs change?
Sharp documents Sensor Cook and Sensor Reheat, along with sensor cooking functions for potatoes and vegetables. These controls distinguish R459YW from a basic timed model whose sources list only manual heating and presets. Sensor programs may reduce how much time the user has to enter, but they are not a guarantee for every food, portion or container. Follow the manual's preparation instructions and check the result. The source documents a feature, not measured heating performance or a personal test.
How does 1,000-W output compare with electrical supply?
The exact model record lists 1,000 W of microwave output and 120 V / 60 Hz electrical supply. Keep those values in separate roles: output is the stated cooking-power figure, while voltage and frequency are compatibility checks. The cited record does not provide a complete circuit recommendation in the fact used here, so verify amperage, plug, grounding and the unit's rating plate before installation. The model meets the finder’s soft 1,000-W preference, but that does not make the output a measured performance score.
What installation option is documented?
The exact-model record labels R459YW as countertop style and says no optional built-in trim kit is listed. That suits a buyer who plans to leave the microwave on a counter and does not need a cabinet conversion. If you expect to build a microwave into cabinetry later, compare a model whose maker names a separate exact-code kit and opening dimensions. Do not infer compatibility from another Sharp model number; trim options are tied to model families and suffixes.
Is the white variant distinct from nearby Sharp models?
The exact code ends in YW, and the record identifies the model and its white finish. Keep R459YW separate from other similarly numbered Sharp microwaves unless a manufacturer crosswalk proves an alias. Its listed turntable and sensor functions belong to this model record and should not be transferred to a nearby code by resemblance. The frozen source ASIN remains historical only, so the Amazon button searches the complete R459YW model and does not promise that the old item identifier maps to a present offer.
Does it meet a large-cavity sensor requirement?
R459YW has documented sensor cooking and a 1,000-W output, but its 1.3-cu.-ft. cavity is below the finder’s hard 1.5-cu.-ft. large-capacity condition. It therefore fits the standard compact-counter route when 120-V/60-Hz supply is selected, not the large-sensor path. If the larger capacity is mandatory, compare eligible models that meet the capacity cutoff and sensor condition together. A sensor feature alone does not override a selected capacity requirement.
What else to compare
Compare Sharp R-320HW for 1,200-W output in a slightly smaller 1.2-cu.-ft. cavity, or choose a confirmed 1.5-cu.-ft. model when large capacity is required.
Before you buy
What capacity and output are listed?
The exact-model record lists a 1.3-cu.-ft. cavity and 1,000-W microwave output.
Does R459YW have sensor cooking?
Sharp documents Sensor Cook and Sensor Reheat for this exact countertop model.
How wide is the glass turntable?
The exact-model record lists a removable 12.75-in. glass turntable.
Can it be installed with a trim kit?
The exact-model record says no optional built-in trim kit is listed.
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-authored R459YW specification sheet and exact-model specification record ↗ — checked October 11, 2026.
- Sharp-authored R459YW specification sheet; identifies the model and countertop type, sensor functions, glass turntable and controls. ↗ — checked October 11, 2026.
- Exact-model R459YW specifications; lists white finish, capacity, 1,000-W output, 12.75-in. tray, 120-V/60-Hz supply and no trim kit. ↗ — checked October 11, 2026.
The decision
R459YW combines a 1.3-cu.-ft. cavity, 1,000-W output, sensor controls, white finish and a 12.75-in. turntable. It is countertop-only in the reviewed record and below the large-cavity cutoff.
Is it the right fit?
Check the exact model and today’s offers on Amazon.