Best smart toilets with built-in bidets

A smart toilet purchase starts with fit, water supply and power—not a feature checklist. Use this guide to narrow the options, then check the manufacturer's current installation drawing.

Start with the non-negotiables

Feature trade-offs

Automatic lids and dryers add convenience but also introduce powered components. Built-in tanks and pump systems can change flushing behavior; they do not remove the need to meet the bidet system’s water requirements.

Example specification comparison

Model	Dimensions (L × W × H)	Rough-in	Seat height	Electrical	Water pressure	Flush volume
T38	27 7/16 × 15 7/16 × 18 11/16 in	12 in	16 9/16 in	16 A / 120 V	11.6–108 psi	1.06 GPF
T38P	27.44 × 15.43 × 19.69 in	12 in	17.56 in	16 A / 120 V	11.6–108 psi	1.0 / 1.28 GPF
X70	28 3/16 × 15 15/16 × 17 15/16 in	12 in	17 in	16 A / 120 V	8.7–116 psi	1.0 / 1.28 GPF
T33	27 1/16 × 16 7/16 × 18 7/16 in	12 in	17.5 in	10 A / 120 V	13–108 psi	1.28 GPF
T16	25 9/16 × 15 15/16 × 19 13/16 in	12 in	16.6 in	10 A / 120 V	20.3–108 psi	1.28 GPF

Figures are manufacturer-listed, not independently measured. Verify the latest model manual and product variant before purchasing.

Before you buy

Confirm the current price, stock, shipping destination, return conditions, included accessories, installer requirements and warranty at checkout. Check current offers and the written terms before purchasing.

Define the washing functions you need

Check whether the model offers adjustable nozzle position, pressure and temperature, plus any dryer or self-cleaning functions you care about. Verify the exact variant rather than relying on a category-page feature list.

Confirm water and power compatibility

Bidet operation may have flow and pressure requirements separate from flushing. Check the manufacturer's specifications and arrange a suitable electrical installation if the unit requires power.

Evaluate cleaning and service

Look for nozzle-access instructions, approved cleaners, filter or descaling guidance, and replacement-part availability. Consider whether a separate bidet seat would meet the same needs with less fixture replacement.

Use a fit-first shortlist

For each candidate, record rough-in, length, width, seat height, supply pressure, electrical rating and outlet location. Eliminate models that cannot meet the room's fixed constraints. Only then compare wash controls, heating, flushing, cleaning access and appearance.

Read the installation and warranty documents

A feature list cannot tell you whether the product can be serviced easily in your area. Find the manual, warranty, return policy and replacement-part process for the precise model. If professional installation is required, obtain a quote before ordering rather than treating the fixture price as the total project cost.

Understand the washing system

Compare adjustable nozzle position, water-temperature controls, pressure adjustment, self-cleaning procedure and whether a dryer is included on the exact SKU. Terms such as ‘bidet’ do not establish the same controls across products.

Think about cleaning and servicing

Ask how to clean the nozzle without damaging coatings, how filters are accessed and which parts are replaceable. Confirm that the water supply and electrical connection can support the model’s washing functions.