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Sharp SDW6506JS 24-inch Stainless Steel vs SPT SD-9254SSB 18″ Wide Built-In Stainless Steel

Updated July 2026 — Sharp SDW6506JS 24-inch Stainless Steel wins on weight and width, SPT SD-9254SSB 18″ Wide Built-In Stainless Steel wins on noise.

The Sharp SDW6506JS outperforms the SPT SD-9254SSB in capacity, noise level, and features, making it the better choice for larger households. However, the SPT offers a more economical option for smaller kitchens.

Why Sharp SDW6506JS 24-inch Stainless Steel is better

Capacity

Sharp accommodates 12 place settings vs SPT's 8

Noise Level

Sharp operates at 49 dB vs SPT's 52 dB

Features

Sharp has advanced features like a third rack and touch controls

Why SPT SD-9254SSB 18″ Wide Built-In Stainless Steel is better

Price

SPT is $449.99 compared to Sharp's $499.00

Size

SPT is more compact at 18 inches wide

Energy Consumption

SPT has a specified energy consumption of 234 kWh annually

Overall score

Sharp SDW6506JS 24-inch Stainless Steel
88
SPT SD-9254SSB 18″ Wide Built-In Stainless Steel
76

Specifications

SpecSharp SDW6506JS 24-inch Stainless SteelSPT SD-9254SSB 18″ Wide Built-In Stainless Steel
Price$499.00$449.99
Wash Programs56
Energy StarYesYes
Drying MethodHeatedHeated
Child LockYesNo

Dimension comparison

Sharp SDW6506JS 24-inch Stainless SteelSPT SD-9254SSB 18″ Wide Built-In Stainless Steel

Overview of the Sharp SDW6506JS and SPT SD-9254SSB

The Sharp SDW6506JS is priced at $499.00, while the SPT SD-9254SSB comes in slightly lower at $449.99, making it about 10% cheaper. Both dishwashers are built with stainless steel, but they cater to different kitchen needs in terms of capacity and features. The Sharp model boasts a 24-inch width and can accommodate up to 12 place settings, while the SPT model is narrower at 18 inches, designed for 8 place settings. This comparison will delve into their features, performance, and overall value to help you make an informed decision.

Cleaning Performance

The Sharp SDW6506JS features advanced cleaning capabilities with a hybrid tub design and three washing sprayers, delivering efficient cleaning for up to 12 place settings. Its quiet operation at just 49 dB makes it ideal for homes where noise is a concern. In contrast, the SPT SD-9254SSB offers 6 wash programs, including Normal, Heavy, and Quick cycles, but operates at a slightly noisier 52 dB. While both models provide effective cleaning, the Sharp's superior capacity and quieter operation may appeal to larger families or those who often entertain guests.

Capacity and Design

With a capacity of 12 place settings, the Sharp SDW6506JS is designed for larger households or those who prefer to wash dishes less frequently. Its three-rack system, which includes a specialized third rack for silverware, maximizes space utilization. On the other hand, the SPT SD-9254SSB is more compact, catering to smaller kitchens with its 8 place settings. The SPT model's two pull-out racks are functional but may feel limiting compared to the versatility offered by the Sharp's adjustable upper rack. Therefore, if you need more capacity and flexibility in loading your dishes, the Sharp is the clear winner.

Energy Efficiency

Both dishwashers are Energy Star certified, indicating they meet or exceed federal guidelines for energy efficiency. The SPT SD-9254SSB has a reported energy consumption of 234 kWh annually, which is quite efficient for its size. However, the overall operational costs will depend on usage habits and water consumption, with the SPT using between 2.5 to 4.9 gallons per cycle. The Sharp SDW6506JS does not specify its water consumption but offers a half-load option that conserves resources for smaller loads. If energy efficiency is a significant concern, the SPT model might present a slightly more economical option, especially for smaller households.

Noise Level

Operating at 49 dB, the Sharp SDW6506JS is classified as library quiet, making it an excellent choice for households where noise levels need to be kept to a minimum. In contrast, the SPT SD-9254SSB operates at 52 dB, which is relatively quiet but not as silent as the Sharp model. If you prioritize a peaceful home environment, particularly during dishwashing cycles, the Sharp's quieter operation could be a deciding factor.

Features and Controls

The Sharp SDW6506JS offers modern convenience with front-mounted touch controls and a child lock feature, preventing accidental operation and enhancing safety. It also includes a heated dry option for ensuring dishes are ready to use immediately. The SPT SD-9254SSB, while equipped with a heating function during the drying cycle, utilizes more traditional controls and lacks some of the advanced features found in the Sharp. If you value high-tech functionalities and ease of use, the Sharp SDW6506JS stands out with its user-friendly design and additional features.

Aesthetic Appeal

Both dishwashers come in a sleek stainless steel finish, adding a modern touch to any kitchen. The Sharp SDW6506JS is designed with a pocket handle, which can enhance the overall aesthetic and functionality, while the SPT SD-9254SSB maintains a classic built-in look. The choice here may come down to personal preference regarding kitchen design and whether you prefer a more contemporary feel or a traditional built-in appearance.

Price Comparison

The Sharp SDW6506JS is available for $499.00, while the SPT SD-9254SSB is priced at $449.99, making it about 10% less expensive. However, considering the additional features and larger capacity of the Sharp model, the price difference may be justified for those who require a more robust dishwasher. If budget constraints are a primary concern, the SPT model offers a solid performance at a lower price, but potential buyers should weigh this against their specific needs.

Which should you buy?

Ultimately, your choice between the Sharp SDW6506JS and the SPT SD-9254SSB will depend on your household size, kitchen space, and feature preferences. The Sharp model excels in cleaning performance, capacity, and quiet operation, making it ideal for larger families or those who value advanced features. Conversely, the SPT model is a more economical option for smaller kitchens and households, offering essential functionalities at a lower price. If you need a larger, quieter dishwasher with more features, the Sharp is the better option. However, if space and budget are your primary concerns, the SPT is a competent choice.