TOTO WASHLET Comparison Chart

On this page (6 sections)

1. What does the TOTO WASHLET comparison chart show?
2. Which TOTO WASHLET model fits your priorities?
3. How do the C5, S2, S5 and KS5 compare on cleaning?
4. Which control style should you choose?
5. What should you check before buying a WASHLET?
6. How should you choose between these TOTO WASHLET models?

The TOTO WASHLET S5 is the top-scoring model in this comparison, followed by the S7A, C5, S2 and KS5. Their controls and extra features differ: the C5 and S5 have remotes, the S2 has a side panel, the KS5 has a remote with 4 user memories, and the S7A adds an automatic lid.

All five models have elongated seats. Measure your toilet and check TOTO's fit guidance before choosing.

What does the TOTO WASHLET comparison chart show?

The chart compares controls, warm-water heating, cleaning features and comfort options. The S5 ranks first by score, while the S7A has the automatic lid.

Our score weighs specs, features and buyer feedback against what you're shopping for.

The C5 description specifies adjustable warm-water settings, while the S-series descriptions specify instantaneous and continuous warm water. The S2 and S5 list an air deodorizer; the KS5 description does not.

Which TOTO WASHLET model fits your priorities?

Choose by control style first, then compare the features you will use. The S2 has a side panel; the other four models have remotes.

Which WASHLET model has a side control panel?

The S2 is the model here with a side control panel. It also has instantaneous water heating, a nightlight, PREMIST and EWATER+ wand cleaning.

Choose the S2 if you prefer controls mounted beside you. It also lists pulsating and oscillating spray options, a heated seat, deodorizer and warm air dryer.

The S2 has no user memory settings specified in its product description. If saved preferences matter, compare it with the C5, S5, KS5 and S7A, which list memory settings.

For a closer look at the two S-series models with different controls, see our TOTO WASHLET S2 vs S5 comparison.

Which models include a remote and saved user settings?

The C5, S5, KS5 and S7A have remote controls. The S5, KS5 and S7A list 4 user memory settings, while the C5 lists 2.

The C5 suits you if adjustable warm water and a remote matter more than a nightlight. It also includes PREMIST, a heated seat, deodorizer and warm air dryer.

The S5 combines its remote and memory settings with instantaneous heating, PREMIST, EWATER+ wand cleaning, a heated seat, deodorizer and dryer. Our TOTO WASHLET S5 review covers its features in more detail.

The KS5 includes a heated seat and an oscillating spray option. Its product description names a self-cleaning wand, but not PREMIST, EWATER+ or an air deodorizer.

What does the S7A add?

The S7A adds an automatic open and close lid, plus an illuminated remote with 4 user memories. It also has instantaneous warm water, AIR-IN WONDER WAVE, PREMIST and EWATER+ wand and bowl cleaning.

The automatic lid is a key difference if you want the lid to open and close automatically. The S7A is compatible with a separately sold TOTO auto-flush kit; the kit is not included in the product data.

Our TOTO WASHLET+ S7A review has a closer feature breakdown. Compare toilet dimensions and mounting space before selecting any elongated seat.

How do the C5, S2, S5 and KS5 compare on cleaning?

The C5, S2 and S5 list PREMIST and EWATER+ wand cleaning; the KS5 lists a self-cleaning wand. The S7A lists PREMIST and EWATER+ cleaning for the wand and bowl.

PREMIST mists the toilet bowl before use. EWATER+ cleans the wand, and the S7A description says it also helps clean the bowl upon departure.

The S2 and S5 list pulsating and oscillating options, as does the C5. The KS5 lists an oscillating option, while the S7A lists AIR-IN WONDER WAVE with oscillating and pulsating functions.

For a plain-language overview of the brand's terminology, read what a TOTO WASHLET is.

Which control style should you choose?

Pick the S2 for an attached side panel or a remote model if you want separate controls. Consider who will use the seat and where they can comfortably reach its controls.

The C5, S5 and S7A have remotes. The KS5 has a wireless remote that can be handheld or mounted to the wall.

The C5 offers 2 user memories; the S5, KS5 and S7A offer 4. The product descriptions do not explain which settings each memory stores.

Our guide to choosing a bidet seat with a remote or side panel explains what to consider about reach, storage and shared use.

What should you check before buying a WASHLET?

Check toilet fit, control placement and the features you will use before choosing a model. All five products in this comparison are elongated, but that alone does not confirm fit with your toilet.

Measure the bowl and mounting area, and check that an electrical outlet and water connection can reach the planned installation. The S7A description says it fits most standard toilets, but check your toilet against TOTO's fit guidance.

Our bidet seat compatibility checklist walks through the measurements and clearance questions to check.

Also decide whether you want a dryer, deodorizer, nightlight, automatic lid or user memories. The KS5 description names a nightlight and dryer but not a deodorizer, so compare each model's features.

How should you choose between these TOTO WASHLET models?

Choose the S5 for the highest score, the S2 for a side control panel, or the C5 for adjustable warm water and a remote. The KS5 has a remote, nightlight, dryer and oscillating option; the S7A has an automatic lid and EWATER+ bowl cleaning.

Use the TOTO WASHLET vs regular bidet seat guide if you're still deciding between a WASHLET and a non-TOTO bidet seat. Once you know which features you want, check toilet fit and installation access before ordering.

Frequently asked questions

What is the main difference between the TOTO WASHLET C5 and S2?

The C5 uses a wireless remote and has 2 user memory settings, while the S2 uses a side control panel. Both have PREMIST, EWATER+ wand cleaning and a heated seat.

The S2 adds a nightlight and instantaneous water heating.

Is the TOTO WASHLET S5 better than the S2?

The S5 may suit you better if you want a remote and 4 user memory settings; the S2 may suit you better if you prefer controls attached to the seat. Both include instantaneous water heating, PREMIST, EWATER+ wand cleaning, a nightlight, deodorizer and warm air dryer.

What does the S7A add to the TOTO WASHLET comparison?

The S7A adds an automatic open and close lid, an illuminated remote, AIR-IN WONDER WAVE and EWATER+ wand and bowl cleaning. Its auto-flush feature needs a separately sold compatible kit, so confirm that setup if hands-free flushing matters to you.

How do I choose between a WASHLET remote and side panel?

Choose a side panel if you want controls attached to the seat, as on the S2. Choose a remote if you prefer separate controls, as on the C5, S5, KS5 and S7A.

Think about where you'll place the remote and who needs to reach it.

Do these TOTO WASHLET models fit every toilet?

The models here are described as elongated seats, but that does not confirm compatibility with every toilet. Measure your bowl and check mounting space, outlet access and TOTO's fit guidance.

The S7A product description says it fits most standard toilets.