The TOTO S7A costs a little bit more than the S7 for one key difference: automatic open/close lid functionality.
Both models share identical cleansing features, EWATER+ technology, and a slim 4.1-inch profile design. Choose the S7A for hands-free convenience and accessibility needs, or the S7 for premium features at a lower price point.
These models represent TOTO's flagship bidet technology, replacing the discontinued S550e and S500e models with enhanced features and slimmer designs.
Not sure where to start? Here's the short version. Both bidets are excellent, but they shine in different situations.
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| Feature | Toto S7A | Toto S7 |
|---|---|---|
| Auto Open/Close Lid | Automatic | Manual |
| EWATER+ Sterilization | Yes | Yes |
| Instant Water Heating | Tankless | Tankless |
| 4-User Memory Settings | Yes | Yes |
| Heated Seat | Adjustable | Adjustable |
| Warm Air Dryer | 5 Settings | 5 Settings |
| Night Light | Auto-Sensing | Auto-Sensing |
| PREMIST Bowl Cleaning | Yes | Yes |
| Slim Profile Height | 4.1 inches | 4.1 inches |
TOTO discontinued their most popular bidet seats in 2023 to make way for these advanced models. The S7 replaces the discontinued S500e, while the S7A replaces the discontinued S550e, bringing significant improvements to both design and functionality.
The new models feature a slimmer design with a 4.1-inch height compared to the previous 4.9-inch profile. This nearly one-inch reduction makes a substantial difference in comfort, preventing the forward-pushing sensation common with bulkier bidet seats.
Enhanced EWATER+ technology now cleans the under-seat area in addition to the wand and bowl, providing more comprehensive sterilization. The seamless design eliminates the dirt-collecting gaps that were present in previous models, making maintenance significantly easier.
Both models utilize instant tankless water heating, providing unlimited warm water without the bulk of traditional tank systems. This technology enables the ultra-slim profile while ensuring consistent water temperature.
The EWATER+ electrolyzed water sterilization system automatically cleans the toilet bowl, bidet nozzles, and under-seat areas before and after each use. This reduces the need for harsh chemical cleaners while maintaining superior hygiene standards.
PREMIST bowl preparation technology wets the toilet bowl surface before use, preventing waste from sticking and making cleaning more effective. This feature works automatically and requires no user intervention.
The updated 4 programmable user memory settings allow families to save personalized preferences for water temperature, pressure, spray position, and other comfort settings. Each user can access their preferences with a single button press.
The single difference between the TOTO Washlet S7 and the S7A is the Auto Open/Close Lid feature. The S7A includes an automatic lid that opens when you approach and closes when you walk away. All other features including wash functions, heating, and controls are identical between the two models.
Yes, both models feature identical wash functions including EWATER+ sterilization, instant water heating, dual-action aerated spray, oscillating and pulsating modes, and all comfort features. The automatic lid is the only functional difference between the models.
The S7A typically can cost up to $300 more than the S7, with prices varying by retailer, lid style, and color options. This premium reflects the additional automatic lid mechanism and motion sensor technology.
Yes, both models support optional auto-flush kits that can be purchased and installed separately for compatible TOTO toilets. The auto-flush feature automatically flushes when the user stands and moves away from the toilet.
The S7A is significantly better for users with mobility limitations due to the hands-free lid operation. This feature eliminates the need to manually lift or lower the lid, reducing physical requirements and potential contamination from surface contact.
Yes, both the S7 and S7A come with TOTO's extended 2-year limited warranty, an upgrade from the standard 1-year coverage offered on most bidet seats. This extended coverage reflects TOTO's confidence in the models' reliability.
Yes, the S7 replaces the discontinued S500e, and the S7A replaces the discontinued S550e models. The new models offer improved design, enhanced features, and slimmer profiles compared to their predecessors.
Both models are available in elongated and round configurations to fit most standard toilet bowls. They're also compatible with TOTO's T20/T40 WASHLET+ toilets for concealed connection installations.
Bidet toilet seats last 7-10 years with proper maintenance. TOTO's reputation for quality construction and the 2-year warranty suggest these models will provide reliable service throughout their expected lifespan.
Both models can be installed by homeowners with basic DIY skills using the included hardware and instructions. However, professional installation is recommended for electrical connections, especially if GFCI outlet installation is required.
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