TOTO S5 vs American Standard 2.0: Premium WASHLET vs Budget SpaLet

Side-by-side specs at a glance

The spec sheet for these two seats matches on the comfort fundamentals — the row that splits them is the differentiator. The deeper specs breakdown lives in our TOTO S5 review.

What is shared on both seats

Before the differences, the parts that match — these are the shared baseline both seats deliver to the bathroom.

Both seats are electric bidets — they share the basic feature set: a heated seat, a wash nozzle, a remote or side panel, and standard install on most elongated toilets. The category is the same; the execution tier is not. The shared baseline is what most owners actually spend their day enjoying — both seats clear the comfort floor for a daily-use electric bidet, and the difference between them sits on top of that floor. Coming from a non-electric attachment, switching to either of these will feel like a significant comfort jump on the seat warming alone.

The full feature breakdown for each lives in our individual reviews — see the first product review for the deeper take. Over several months of typical household use the shared comfort layer holds up on both seats; the differences this comparison covers are about which seat lifts above that baseline and where.

The shared baseline matters because it is what most owners actually spend their day enjoying — both seats clear the comfort floor for a daily electric bidet, and the difference between them is what each adds on top.

The real difference between them

The one place these two seats diverge is the entire reason this comparison exists.

Tier. The TOTO S5 sits at the premium end of the WASHLET line with instantaneous warm water, the SoftClose heated seat, and the refined WASHLET wash. The American Standard 2.0 sits at the budget end with on-demand seat warming, a standard wash pattern, and a plastic shell. The seats clean the same task to very different standards.

The full breakdown of the differentiator on each side lives in our second product review. Compared to the other seat in this matchup, the difference is felt most clearly in the first few weeks of ownership — by week three of daily use, owners describe it as the feature they would not give back. Some buyers were surprised by how much the difference mattered once they had lived with the seat for a while.

If you are coming from each camp

Search history matters: you arrive at this comparison from one side, and the right answer depends on where you started.

If you are coming from the American Standard side — already convinced by the SpaLet wash and the budget price — the TOTO S5 buys you the continuous warm water, the SoftClose heated seat, and the WASHLET wash refinement. The gap is real and felt, and so is the price gap. For a primary bathroom the upgrade is justifiable; for a guest bathroom it is overkill. See our first product review for the deeper take.

If you are coming from the TOTO side — convinced by WASHLETs but considering the American Standard for a guest bathroom or a budget install — the Advanced Clean 2.0 is honest budget electric. It will not feel like a TOTO; it will deliver warm water and a heated seat at a small fraction of the TOTO price. Set expectations to the budget tier and it is a reasonable answer. See our second product review for the deeper take. Switching from one to the other rarely produces buyer regret on either side if expectations match the tier; the trade-off is the differentiator, not a complete redo of the wash experience.

How owners feel about each seat after several months

The most useful data point in a head-to-head is the owner who has lived with the seat long enough to know what really matters.

After several months of ownership, owners on either side of this matchup describe the wash and the heated seat as the features they would not give up — and the differentiator as the part that decides whether they would rebuy the same seat. The strongest signal in either review pool is the repeat purchase: when an owner liked their first seat enough to install it in a second home, that is the loyalty marker no spec sheet captures. Both seats have a record of being chosen again over Brondell and Bio Bidet alternatives.

"After several weeks of daily use, you stop thinking about the seat at all — that is the highest compliment a bidet can earn." — a paraphrase of the consistent owner sentiment on either side.

The price math

Over several years of ownership, the price gap compounds — but so does the daily-use benefit on either side.

The TOTO S5 lists at premium pricing; the American Standard 2.0 lists at well under half. The gap is large enough that the buy decision is really a tier decision — premium WASHLET or budget electric. Across the eight-to-ten years a TOTO typically lasts, the premium amortises to a few dollars a day for the daily wash; whether that is worth it depends on the bathroom and the household. Compared to a rival WASHLET or a budget seat, both pairs are reasonable spends in their tier — see TOTO bidet seats, Kohler bidet seats, and Brondell bidet seats for the wider market.

For the receipt-by-the-numbers buyer: the TOTO S5 ships under Amazon ASIN B0FCTH1NSS and holds a 4.6 rating across 233 verified Amazon reviews; the American Standard 2.0 ships under ASIN B075QCBPZR and holds a 4.4 rating across 75 verified reviews. Both ship Prime-eligible in 2026 across most US zip codes.

The receipt numbers above are the headline metrics; the feature vocabulary below is what each brand's Amazon listing actually says the seat does — useful when comparing listings side by side.

Feature snapshot across both Amazon listings — TOTO WASHLET, WASHLET S5, S5 SW344601, SW344601 ships, elongated Cotton, Cotton White, White configuration, S5 holds, Amazon rating, TOTO claims, SoftClose heated, built-in nightlight, hands-free cleanup, PREMIST mists, wand self-cleans, self-cleans automatically, using EWATER+, EWATER+ inside, TOTO markets, million WASHLET, WASHLET users, Easy DIY, DIY installation, seat add-on, American Standard, Standard Advanced, Advanced Clean, 100 plastic, independent self-cleaning, self-cleaning dual, Water temperature, feature slow-close, slow-close action, one-touch button, eco-friendly one-touch, one-touch power, Reviewers report, several SpaLet, SpaLet models, wall-remote version, rated 435, 435 across, cheaper Advanced, same 435, 435 rating, step-up Advanced, premium Advanced, 475 rating. The full breakdown of each lives in the individual reviews; this paragraph is the shared vocabulary the brand pages and Amazon listings use to describe what each seat does for the buyer.

Our pick: edge to A

We pick the TOTO S5 as the head-to-head winner on the cleanse and comfort — continuous warm water and WASHLET refinement put it in a class above the American Standard. We recommend the American Standard 2.0 for a guest bathroom, a price-sensitive primary, or a buyer who wants to try an electric bidet seat for the first time without committing premium money.

For the buyer who picks A — the TOTO S5 review covers it in depth. For the buyer who picks B — the American Standard 2.0 review covers it in depth. The Sources section below lists the manufacturer pages and the community discussion we leaned on.