10 Best One Piece Toilets 2025 in the United States

The TOTO WASHLET+ Aquia IV One-Piece Toilet is a high-end option in the realm of one-piece toilets, featuring an elongated bowl shape for added comfort. The dual flush system offers two water consumption options (1.28 and 0.9 gallons per flush), making it water-efficient. Its tankless design ensures that you always have warm water, enhancing user experience with its heated seat, warm air dryer, and adjustable water temperature and pressure controls.

The EWATER+ technology keeps the bowl and wand clean without needing harsh chemicals, promoting hygiene and reducing maintenance efforts. The trapway is concealed, providing a seamless look and making it easier to clean around the toilet. This model comes in a sleek Cotton White finish, fitting well in modern bathrooms.

However, its advanced features come with a higher price tag and may require professional installation, which could be a drawback for some users. Its 28.38-inch height might be a bit tall for shorter individuals or those with limited mobility. Additionally, the toilet is relatively heavy at 108.8 pounds, which may pose challenges during installation. Despite these potential limitations, the TOTO WASHLET+ Aquia IV is well-suited for those seeking a luxurious, high-tech, and efficient one-piece toilet.

The WOODBRIDGE Smart Bidet Toilet offers a combination of advanced features and practical design, making it a strong contender in the one-piece toilet category. One of its standout features is the smart sensing auto opening and closing lid, which enhances hygiene and convenience. The automatic flush function is another hands-free feature that ensures ease of use, especially beneficial for those with mobility issues.

The chair height design meets ADA standards and provides comfort, particularly for the elderly or those with knee problems. The dual flushing system is efficient, offering a full flush at 1.6 GPF and a half flush at 1.1 GPF, which helps in water conservation while maintaining a high flushing performance with a MaP score of 1000 grams. The toilet also includes a heated seat and front and rear wash options with adjustable water pressure, providing a luxurious and refreshing experience. Additionally, the foam shield and auto deodorization features contribute to a cleaner and more pleasant environment.

The foot sensor adds another layer of convenience by allowing lid and seat control as well as flushing activation without hand contact. However, it's important to note that this toilet is relatively heavy at 112 pounds and may require professional installation due to its advanced features. The porcelain material ensures durability, but the complexity of the electronic components might necessitate more frequent maintenance and support. The elegant remote control, while stylish, may have a learning curve for some users. This toilet is best suited for those looking for a technologically advanced and comfortable toilet with numerous automated features.

The Kohler Leap One-Piece Elongated Smart Toilet is a modern and well-equipped choice for those looking for a comfortable and hygienic bathroom fixture. Its elongated bowl shape offers extra seating space, which many find more comfortable compared to round bowls. The dual-flush system allows you to choose between a light 1.0 gallon flush for liquid waste and a stronger 1.28 gallon flush for solid waste, helping to save water without sacrificing performance. With a Comfort Height design, this toilet sits at chair height, making it easier for most adults to sit down and stand up.

The fully skirted trapway simplifies cleaning by hiding the pipes and reducing places where dirt can accumulate, while the quiet-close seat prevents loud slamming. One of the standout features is the integrated bidet system with a stainless steel wand that offers adjustable spray options, warm water, and self-cleaning with UV light, which improves hygiene and user convenience. Motion-activated lid opening and closing add a touch of smart technology, enhancing the hands-free experience.

The toilet’s material is high-quality plastic with a sleek white finish that fits well in contemporary bathrooms. At just over 20 inches tall and weighing around 106 pounds, it’s a solid, floor-mounted model that should be stable and durable. The plastic seat is standard but functional. Due to its advanced features and weight, it might be pricier and more complex to install than basic models. Additionally, the plastic finish is easy to clean but may not feel as premium as ceramic or porcelain seats to some users. This toilet is ideal for those seeking a smart, water-efficient, and comfortable one-piece toilet with built-in bidet functions, especially when upgrading a bathroom with modern conveniences.