INDEPENDENT BUYING GUIDE · UPDATED SEPTEMBER 2026
Best smart toilets with heated seats
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
- Measure finished-wall-to-flange-center rough-in and the usable room footprint.
- Check the exact model’s electrical rating, outlet location and applicable code requirements.
- Verify water pressure, required flow and shutoff-valve position.
- Compare seat height, bidet modes, flushing and outage behavior only among compatible models.
Heated-seat considerations
Check temperature adjustment, user controls and standby behavior. The presence of a heated seat does not establish a model’s electricity consumption; consult its rated-power and operating documentation.
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.
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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.
Start with comfort controls
Look for adjustable seat temperature, a way to turn heating off and clear control labeling. Confirm the feature on the exact model variant; a heated seat is not universal across a brand's range.
Account for electrical and cleaning needs
Check the manufacturer's electrical rating and outlet requirements. Read the approved cleaning instructions, because harsh chemicals or spraying water onto controls can damage electronic components.
Choose based on your bathroom
A comfortable seat still needs the right height, bowl shape, projection and service clearance. Compare those fundamentals before treating the heating feature as the deciding factor.
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.
Evaluate the heated seat as a daily-use feature
Check temperature settings, whether heating can be disabled, the standby-energy information and how the seat behaves after a power interruption. Households with different comfort preferences may benefit from a simple, accessible control.
Do not overlook fit
Seat heat cannot compensate for a bowl that is too high or a fixture that blocks the door. Compare published seat height and installed dimensions before prioritizing comfort features.
Check current HOROW options
Compare the manufacturer’s latest specifications and availability before purchasing.
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