Thinking about upgrading your bathroom with a top-of-the-line bidet seat? TOTO is a name that consistently stands for quality and innovation, and their S7 series is no exception. These WASHLET bidet seats offer a spa-like experience with advanced features designed for ultimate comfort and cleanliness. But when you look at the lineup, you may wonder: what’s the real difference between the TOTO S7A and the S7?
Both models are fantastic, but one packs an extra touch of luxury and hands-free convenience. Are the added features of the S7A worth the investment? Let’s break down the similarities and differences to help you decide.
Shared Excellence: The Foundation of the S7 Series
At their core, the TOTO S7 and S7A share the same robust foundation of technology and elegant design. When you choose either model, you’re getting a premium product packed with features that redefine personal hygiene. Both are excellent options for homeowners looking to create a personal sanctuary or for property managers and contractors looking to add serious value.
Here's what both models bring to the table:
- Sleek, Modern Design: Both S7 and S7A are among the slimmest, most elegant bidet seats available, and come in "Classic" (beveled lid) or "Contemporary" (smooth lid) options. They’ll complement just about any bathroom style.
- EWATER+® Technology: Using electrolyzed water, both seats mist the wand and bowl after every use to keep things fresh and sanitary—no harsh chemicals needed. Both models also let you manually activate this cleaning feature from the remote whenever you like.
- PREMIST® Feature: The WASHLET mists the bowl before every use, helping prevent waste from sticking and making clean-up a breeze.
- Instantaneous Water Heater: Unlimited warm water, every time. No more cold surprises!
- Customizable Wash Settings: Four wash modes (front, rear, wide, soft), five water temperature/pressure settings, and adjustable nozzle positions keep you in complete control.
- Heated Seat & Warm Air Dryer: Five temperature options for each means tailored comfort, especially on chilly mornings.
- Automatic Air Deodorizer: Both seats actively neutralize odors with a built-in fan and carbon filter—no artificial scents required.
- User Presets: Save personalized wash settings for up to four users, making every visit just right.
- Auto Flush Capability: Both S7 and S7A can be equipped with TOTO’s optional Auto Flush kit. When set up with a compatible TOTO toilet, the seat can automatically flush after use for a true hands-free routine.
- Seamless Seat Design: A smooth, gap-free seat design prevents buildup in hard-to-reach places, making cleaning quicker and easier.
As you can see, both the S7 and S7A offer a remarkably high standard of hygiene, convenience, and comfort.
The S7A Advantage: Ultimate Hands-Free Convenience
If both models offer such a robust feature set, what makes the S7A stand out? It comes down mainly to hands-free luxury.
Automatic Open/Close Lid
The S7A's defining feature is its auto-opening and closing lid. As you approach, a sensor detects your presence and raises the lid for you. After you finish and walk away, the lid closes gently on its own. This touchless convenience means less contact with surfaces and an added sense of luxury and hygiene. Whether you’re furnishing a high-end property or just want the very best for your own home, it’s a subtle but meaningful upgrade.
Feature Breakdown:
TOTO S7 vs. S7a
| Features | S7 | S7A |
|---|---|---|
| Elongated / Round | Both | Both |
| Water Heating | Instant | Instant |
| Ewater+ | Wand, Bowl, Under Seat | Wand, Bowl, Under Seat |
| Front / Rear Wash | ✔ | ✔ |
| Wide Front Wash | ✔ | ✔ |
| Heated Seats | ✔ | ✔ |
| Pulse / Oscillation | ✔ | ✔ |
| Air Dryer Settings | 5 Settings | 5 Settings |
| Air Dryer / Deodorizer | ✔ | ✔ |
| Bowl PreMist | ✔ | ✔ |
| User-Presets | 4 Users | 4 Users |
| Seat Temp Settings | 5 Settings | 5 Settings |
| Water Temp Settings | 5 Settings | 5 Settings |
| Auto-Open / Close | — | ✔ |
| Auto-Flush Option | ✔ | ✔ |
| Energy Saving Timer | 6, 9 Hrs | 6, 9 Hrs |
| Night Light | ✔ | ✔ |
| Remote / Side Panel | Remote | Remote |
Compatibility: Will the S7/S7A Fit Your Toilet?
Wondering if the S7 or S7A will work with your bathroom setup? Both models are designed for maximum versatility and are fully compatible with TOTO’s T40 toilets (Washlet+ ready), making installation a breeze. But that’s not all—they’ll also fit most standard toilets, as long as your fixture meets a few basic requirements, like the right mounting hole spacing and proper tank-to-bowl contours. TOTO makes it easy to check your measurements, so you don’t have to guess. Just consult their compatibility guide or ask us for help to ensure a perfect fit.
Our Top Pick: Why the TOTO S7A Is a Smart Upgrade
Which one should you choose? The S7 is an excellent choice, loaded with advanced features and serious comfort. But here’s the thing, when you compare the prices, the difference is relatively small. For that modest extra investment, the S7A gives you all the bells and whistles, especially the automatic open/close lid, turning the experience into true luxury. If you want a bathroom upgrade that’s not just impressive but also adds convenience and a hands-free, hygienic touch, the S7A is the clear favorite. Why settle for almost perfect when you can have it all for just a little more?
