Sharp SDW4523MS 18-Inch Built-In Dishwasher, vs Whirlpool WDP540HAMZ
Updated July 2026 — Sharp SDW4523MS 18-Inch Built-In Dishwasher, wins on sales rank and price, Whirlpool WDP540HAMZ wins on noise level and size.
The Sharp SDW4523MS excels in quiet operation and advanced drying features, while the Whirlpool WDP540HAMZ offers larger capacity and effective cleaning at a lower price.
Why Sharp SDW4523MS 18-Inch Built-In Dishwasher, is better
Quiet Operation
Sharp operates at 47 dB, quieter than Whirlpool's 55 dB
Advanced Drying
Sharp has Auto Door Open feature for better drying
Compact Design
Sharp is ideal for small kitchens with 8 place settings
Why Whirlpool WDP540HAMZ is better
Larger Capacity
Whirlpool holds 12 place settings, 50% more than Sharp
Lower Price
Whirlpool is priced at $459, significantly cheaper
Effective Filtration
Whirlpool features a Triple Filtration Wash System
Overall score
Specifications
| Spec | Sharp SDW4523MS 18-Inch Built-In Dishwasher, | Whirlpool WDP540HAMZ |
|---|---|---|
| Brand | Sharp | Whirlpool |
| Model | SDW4523MS | WDP540HAMZ |
| Drying Feature | Auto Door Open | High Temp Wash |
| Filtration | Not Specified | Triple Filtration |
| Control Type | Touch Controls | Cycle Memory |
Dimension comparison
Overview of the Sharp SDW4523MS and Whirlpool WDP540HAMZ
The Sharp SDW4523MS is priced at $799.00, while the Whirlpool WDP540HAMZ is significantly cheaper at $459.00, making it about 43% less expensive. This price disparity reflects differences in size, features, and washing capabilities between the two models. The Sharp model is an 18-inch built-in dishwasher designed for compact spaces, while the Whirlpool model is a larger 24-inch fully integrated option that can accommodate more dishes.
Noise Levels
The Sharp SDW4523MS operates at a very quiet 47 dB, ideal for open-concept living spaces. In contrast, the Whirlpool WDP540HAMZ has a slightly louder operation at 55 dB. While both dishwashers are designed to minimize noise, the Sharp model is about 15% quieter, making it a better choice for those who prioritize a peaceful kitchen environment, particularly during meal times or late-night cycles.
Capacity and Design
The Sharp SDW4523MS has a capacity of 8 place settings, while the Whirlpool WDP540HAMZ can hold up to 12 place settings, providing a 50% increase in capacity. The larger size of the Whirlpool model allows it to handle more dishes, making it suitable for families or those who entertain frequently. However, the compact design of the Sharp model includes a convenient third rack for flatware, adding versatility in loading options, which may be advantageous in smaller kitchens.
Wash Cycles and Features
In terms of wash cycles, the Sharp SDW4523MS offers 6 different options, including smart sensors that optimize cleaning performance. On the other hand, the Whirlpool WDP540HAMZ provides 5 wash cycles, including a Boost Cycle specifically designed for tough messes, which utilizes extra water and heat for stubborn, dried-on food. While the Sharp model has a slight edge in variety, the specialized Boost Cycle of the Whirlpool could be a significant feature for users dealing with particularly challenging cleaning tasks.
Filtration System
The Whirlpool WDP540HAMZ features a Triple Filtration Wash System that ensures cleaner wash water throughout the cycle, which helps prevent food redepositing on dishes. This system includes a coarse filter for large debris, a fine filter for medium soils, and a micro-fine filter for small particles. The Sharp SDW4523MS does not specify a comparable filtration system, which could impact the overall cleaning effectiveness in the long run. The advanced filtration of the Whirlpool model may lead to better cleaning results over time.
Drying Performance
The drying performance of both models is designed to efficiently handle moisture, but the Sharp SDW4523MS includes an Auto Door Open feature, which enhances drying efficiency by releasing moisture from the heated tub. This feature could lead to improved drying results, especially for plastic items. While the Whirlpool model offers options like High Temperature Wash and Extended Dry, it lacks the specific moisture-releasing technology found in the Sharp dishwasher, potentially making the latter a better choice for those who prioritize effective drying.
User Experience and Convenience
The Sharp SDW4523MS features backlit touch controls with adaptive indication, making it user-friendly and intuitive to operate. The Whirlpool WDP540HAMZ includes a Cycle Memory feature that remembers your last cycle, allowing for quick starts with just one button. Both models focus on user convenience but cater to different preferences. The Sharp's modern controls may appeal more to tech-savvy users, while the Whirlpool's simplicity and direct memory feature could be more attractive for those who prefer straightforward operation.
Which should you buy?
Choosing between the Sharp SDW4523MS and the Whirlpool WDP540HAMZ ultimately depends on your specific needs and kitchen space. If you require a compact option with quiet operation and advanced drying features, the Sharp model stands out despite its higher price. Alternatively, if you need a larger capacity dishwasher that offers excellent cleaning power at a lower price, the Whirlpool model presents a compelling choice with its effective filtration system and specialized wash cycles.