Smart Toilet vs Bidet Seat (2026): Cost, Features and Which to Buy
A bidet seat adds warm-water washing to the toilet you already have for $99–$319; a full smart toilet costs $429–$1,600 and adds auto flush, power-outage flushing and a one-piece design. How to choose, with real prices and the fit checks to do first.
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Short answer: If you like your current toilet and mainly want warm-water washing and a heated seat, buy a bidet seat – $99 to $319 at HOROW, and it installs in place of the old seat. Buy a full smart toilet ($429 to about $1,600) if you’re replacing the toilet anyway, or you want automatic flushing, a one-piece easy-clean shape or power-outage flushing, which a seat can’t add.
Prices are from HOROW’s US store on November 4, 2026. We haven’t tested these products hands-on; comparisons are based on published specifications and policies. See how we review.
At a glance
| Bidet seat | Full smart toilet | |
|---|---|---|
| What you replace | The toilet seat only | The whole toilet |
| Price (HOROW examples) | $99 non-electric (B0400) · $289 heated (B0403) · $319 heated + dryer (B0503) | $429 (T10) · $499 (T32) · $799 (T33, comfort height) · $999 (T38) · $1,599 (X70) |
| Warm-water wash, heated seat | Yes (electric models) | Yes |
| Automatic / hands-free flushing | No | Yes on most models |
| Power-outage flushing | Your existing toilet still flushes normally | Built in on some models (e.g. T10, T32); others need a battery box sold separately |
| Power outlet needed | Electric seats: yes · non-electric: no | Electric models: yes · non-electric bidet toilets: no |
| Installation | Usually swaps in for the old seat; needs a water connection | Full toilet replacement – HOROW recommends a licensed plumber |
| Fit to check | Bowl shape and compatibility list | Rough-in (10” or 12”), outlet, seat height |
Swipe to see the full table →
Choose a bidet seat if…
- Your toilet is in good shape and the bowl shape matches a seat on the maker’s compatibility list.
- You want warm-water washing, a heated seat or a dryer and don’t care about automatic flushing.
- You’re renting or don’t want a plumbing job – a seat is easy to remove later.
- You don’t have an outlet near the toilet: a non-electric seat ($99) still gives cold-water washing.
Choose a full smart toilet if…
- You’re replacing an old toilet anyway – HOROW’s tankless T10 smart toilet ($429) costs the same as its standard one-piece HR-T0357W toilet ($429).
- You want hands-free or automatic flushing, a one-piece design without seat gaps to clean, or features like UVC water sterilization (HOROW T33).
- You need comfort (ADA) height – HOROW’s T33 ($799), T38P ($1,299) and T39 ($1,399).
- You worry about outages: models like the T10 and T32 list power-outage flushing; on the T05 and T38P it needs a battery box bought separately.
Before you buy either
- Measure the rough-in – the distance from the finished wall to the center of the toilet’s floor bolts. Most HOROW smart toilets are made for 12 inches; for 10 inches see 10 vs 12-inch rough-in.
- Check for an outlet within reach of the toilet if you’re buying an electric model.
- Check the return terms. HOROW takes returns for 90 days only if the product is uninstalled and in its original packaging, so do the fit checks first. Several smart toilet models get a prepaid return label; other items ship back at your cost.
For a model-by-model look at the full toilets, see our HOROW smart toilet review.
See HOROW's T32 smart toiletRelated: Tankless vs tank smart toilets · Non-electric bidet toilets · Comfort-height and tall toilets
Key takeaways
- A bidet seat replaces only your toilet seat: HOROW's cost $99 (non-electric) to $319 (heated seat, warm water and dryer).
- A smart toilet replaces the whole toilet: HOROW's start at $429 (tankless T10) and most cost $499–$999.
- Only a full smart toilet adds automatic or hands-free flushing, a one-piece easy-clean design and, on some models, power-outage flushing.
- Electric bidet seats and smart toilets need a power outlet near the toilet; non-electric bidet seats and bidet toilets don't.
- A full smart toilet is a plumbing job – HOROW recommends a licensed plumber – while most bidet seats bolt on in place of the old seat.
Frequently asked questions
Is a smart toilet worth it over a bidet seat?
Only if you're replacing the toilet anyway or want features a seat can't add, such as automatic flushing, a tankless or pump-assisted flush, or a one-piece design that's easier to clean. For warm-water washing and a heated seat alone, a bidet seat costs a fraction as much.
How much does a bidet seat cost compared with a smart toilet?
At HOROW, bidet seats cost $99 (non-electric) to $319 (heated with dryer), while complete smart toilets cost $429 to $1,599 (November 4, 2026 prices), plus installation.
Do bidet seats fit any toilet?
No. Check the bowl shape (round or elongated) and the maker's compatibility list. HOROW's B0503 heated seat, for example, is listed as compatible with its 8733 series toilets.
Do smart toilets need electricity?
Electric smart toilets and bidet seats need a power outlet near the toilet. Non-electric bidet toilets, such as HOROW's T30, use cold-water washing and need no outlet.