A "bidet toilet" can mean two distinct products. Get the search intent right before you shop — the price gap between them is 10×.
Built-in bidet toilet vs add-on bidet seat: which are you searching for?
If you want a single fixture with the cleansing wash integrated into the toilet itself (tank or tankless, often with heated seat, lid auto open/close, foot-sensor flush, sometimes a dryer), you're looking for what this page covers — a bidet-toilet combo, typically $1,500–$5,500. TOTO Neorest 700H, Kohler Numi 2.0, Toto Drake with Washlet+, and Horow's HWMT-8733 cover the price spectrum.
If you want to add bidet wash to your existing toilet — by clipping on an attachment ($35–$130) or swapping the seat for an electric one ($200–$1,200) — you want our dedicated bidet category. That's where TUSHY, Brondell, BioBidet, Luxe Bidet, and the TOTO Washlet line live, because they fit virtually any existing toilet.
What "built-in bidet" actually means
A genuine built-in bidet-toilet has:
- Heated water (not just cold-water — important for US climates where supply lines run 50–60°F in winter)
- An adjustable, retracting wash nozzle that's hidden when not in use and self-cleans before and after each use
- A heated seat (most models)
- Often a warm-air dryer, reducing toilet paper use to near-zero
- An electrical outlet within 3 feet of the toilet — this is the install gotcha. Most US bathrooms don't have one and adding GFCI within 3 feet of plumbing requires a permit and an electrician.
Top US models in this segment
- TOTO Neorest 700H / 750H — $4,000–$5,500. Tankless, dual-flush, lid auto open/close, EWATER+ sanitization mist on bowl, premium engineering.
- Kohler Numi 2.0 — $5,000–$8,000. Amazon Alexa, mood lighting, Bluetooth speakers, foot-sensor flush. Best feature breadth at the premium tier.
- TOTO Washlet+ S550e on Drake bowl — $2,200. A Drake II base with the integrated S550e seat — a smart way to get most of the Neorest experience at half the price.
- Horow HWMT-8733 — $1,500–$1,800. Tankless, foot sensor, heated seat, integrated bidet wash. The value play; warranty support is the weakness vs TOTO/Kohler.
- Woodbridge T-0019 — $900–$1,200. The budget integrated option that performs surprisingly well; Wayfair / Amazon distribution.
The plumbing and electrical reality
Before ordering: confirm rough-in (12" for most), confirm GFCI outlet within reach (3 ft typical), and verify supply-line connection — most bidet toilets use a 3/8" compression fit but the integrated wash requires its own connection. Saddle-tee installations off the supply line work but reduce flow pressure. Plan on an electrician visit if your toilet wall doesn't already have an outlet — budget $200–$500 added to install cost.