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Avanti 18-Inch Dishwasher Machine with Top Control vs SPT SD-6501W 24″-wide Built-In Stainless Steel

Updated July 2026 — Avanti 18-Inch Dishwasher Machine with Top Control wins on depth, SPT SD-6501W 24″-wide Built-In Stainless Steel wins on width and capacity.

The SPT SD-6501W offers greater capacity and energy efficiency at a lower price, making it the better choice for larger households.

Why Avanti 18-Inch Dishwasher Machine with Top Control is better

Compact Size

Ideal for small spaces with only 18 inches width.

Quiet Operation

Operates at a lower noise level of 53 dB.

Advanced Options

Offers 3 wash options including sanitize mode.

Why SPT SD-6501W 24″-wide Built-In Stainless Steel is better

Larger Capacity

Can accommodate up to 14 place settings.

Lower Price

Priced at $447.55, making it more budget-friendly.

Energy Efficiency

ENERGY STAR certified for better energy savings.

Overall score

Avanti 18-Inch Dishwasher Machine with Top Control
75
SPT SD-6501W 24″-wide Built-In Stainless Steel
85

Specifications

SpecAvanti 18-Inch Dishwasher Machine with Top ControlSPT SD-6501W 24″-wide Built-In Stainless Steel
Wash Programs66
Drying MethodStandardHeated
Interior MaterialStainless SteelStainless Steel
Control TypeTop ControlTop Control
Rinse AidYesYes

Dimension comparison

Avanti 18-Inch Dishwasher Machine with Top ControlSPT SD-6501W 24″-wide Built-In Stainless Steel

Overview of the Avanti 18-Inch Dishwasher

The Avanti 18-Inch Dishwasher is designed for compact spaces while providing efficient cleaning for up to 8 place settings. Priced at $529.99, it operates quietly at 53 dB and includes advanced cleaning options. This model is particularly suited for small apartments, RVs, or vacation homes, making it a versatile choice for users with limited kitchen space. With its built-in stainless steel construction and LED display, it combines functionality with a modern aesthetic.

Overview of the SPT SD-6501W Dishwasher

The SPT SD-6501W Dishwasher is a larger, 24-inch model capable of accommodating up to 14 place settings, priced at $447.55. This unit features a stainless steel interior and a heated drying function, ensuring efficient drying of dishes. It offers 6 wash programs, including eco-friendly options. This dishwasher is built for families or households with higher dishwashing needs, providing a robust solution that balances capacity with energy efficiency.

Cleaning Performance Comparison

Cleaning performance is a critical factor in choosing a dishwasher, and both models offer distinct advantages. The Avanti features 6 automatic cycles and 3 wash options, including a sanitize mode, tailored for various cleaning needs. In contrast, the SPT offers 6 wash programs, including a specialized eco mode that conserves water and energy. The SPT, with its capacity for 14 place settings, is likely to handle larger loads more effectively, making it better suited for busy households.

Noise Level and User Experience

Noise levels can significantly affect the user experience, especially in small living spaces. The Avanti operates at a quiet 53 dB, making it ideal for environments where noise is a concern. The SPT, while slightly louder at 55 dB, still maintains a relatively quiet operation. However, the difference in noise levels might be negligible for users who prioritize larger capacity and cleaning efficiency over absolute quietness.

Design and Build Quality

The Avanti boasts a sleek, compact design perfect for small spaces, measuring just 18 inches wide. It features a built-in stainless steel construction, which not only enhances durability but also adds a modern touch to any kitchen. The SPT, being a larger model at 24 inches, offers a tall tub design with a stainless steel interior that provides unmatched durability. Both dishwashers present high-quality builds, but the choice may come down to space availability and user preference for design.

Energy Efficiency

Energy efficiency is a crucial consideration for environmentally conscious consumers. The SPT dishwasher is ENERGY STAR certified, which means it meets or exceeds federal energy efficiency guidelines, providing savings on both energy and utility bills. While the Avanti does not explicitly mention ENERGY STAR certification, it still offers effective cleaning and reduced water usage for its size. For those looking to minimize their environmental impact, the SPT may be the preferable choice.

Pricing and Value

The Avanti is priced at $529.99, while the SPT is about 17% cheaper at $447.55. Considering the larger capacity of the SPT, it offers more value for larger households or those who frequently entertain guests. The Avanti may be a better fit for individuals or couples living in smaller spaces, but the price difference could be a significant factor for budget-conscious buyers.

Which should you buy?

Ultimately, the decision between the Avanti 18-Inch Dishwasher and the SPT SD-6501W depends on your specific needs and preferences. If you are in a smaller living space or have minimal dishwashing requirements, the Avanti offers compact efficiency and quiet operation. However, for larger households that need to wash more dishes frequently, the SPT provides greater capacity, energy efficiency, and a lower price point. Evaluating your kitchen space, household size, and budget will guide you toward the best dishwasher for your needs.