Smart Toilets in the UK: Comfort and Water Savings Explained
By James Hargreaves · Updated June 2026 · 7 min read
- Smart toilets and bidet seats combine water-saving flush technology with built-in bidet cleaning
- Many models include heated seats, warm air drying, and adjustable water pressure
- Dual-flush and low-flow designs can meaningfully cut water use compared to older toilets
- A retrofit bidet seat is often a more affordable way to get similar comfort, from around £250
What Makes a Toilet "Smart"?
Traditional toilets do one job well: they dispose of waste. "Smart" toilets and bidet toilet seats build on that with extra comfort and efficiency features — integrated bidet washing, heated seats, warm air drying, and water-saving flush technology, all controlled from a remote or a panel on the seat itself.
In the UK, where the population is ageing and water conservation is an ongoing priority, these features have moved from luxury extras to a practical, increasingly affordable upgrade for many bathrooms.
Comfort Features That Make a Real Difference
The main appeal of a smart toilet or bidet seat is everyday comfort. Integrated bidet functions with adjustable water pressure and temperature, combined with a self-cleaning nozzle, give a thorough, gentle clean without relying on dry paper. Many models add a heated seat — genuinely welcome on a cold UK morning — and a warm air dryer that reduces how much paper you need afterwards.
Some higher-end models include extras like a remote control, memory settings for multiple users, or a gentle deodoriser. None of these are essential, but they add convenience for households that want it.
If you're choosing between a full smart toilet and a retrofit bidet seat, the seat is usually the better starting point — you get most of the comfort features at a fraction of the cost and installation hassle.
Water and Energy Savings for UK Homes
Water efficiency is a genuine benefit of newer toilet technology. Traditional toilets use 6–8 litres per flush, and many households flush more than necessary. Smart toilets often feature dual-flush technology and low-flow options, reducing water use compared to older models — some advanced toilets use less than a litre for a liquid-waste flush.
Energy use is modest: a typical electric bidet seat uses only a small amount of electricity per month for heating the seat and water — usually only a pound or two at current rates. This is on top of the water and paper savings that come from using a bidet function instead of relying solely on toilet paper.
Financially, the upfront cost of a smart toilet (roughly £400–£1,500) or a retrofit bidet seat (from around £250) is gradually offset through reduced toilet paper use, lower water bills, and fewer plumbing call-outs caused by blockages from excess paper or wipes.
UK Adoption and What's Available
Smart toilets and bidet seats are still a niche choice in the UK compared to countries like Japan, but interest is growing as more households look for water-saving and comfort upgrades. Models designed for the UK market typically use standard 1/2" BSP plumbing connectors and a 230V electrical supply, and are widely available through online retailers and bathroom showrooms.
Installation for a full smart toilet is straightforward but typically requires a qualified plumber and electrician to ensure compliance with UK building regulations, particularly Part P for electrical work. Most are designed to fit standard toilet footprints, so a full bathroom remodel usually isn't necessary.
For those not ready for a full smart toilet, a bidet seat can retrofit an existing toilet. These offer heated water, warm air drying, and adjustable pressure at a lower cost and with simpler installation.
Addressing Common Concerns: Complexity and Cost
Complexity: Smart toilets have several features, but they're designed to be intuitive day-to-day. Most come with a simple remote control or a panel built into the seat. You set your preferred water pressure and seat temperature once, and the toilet remembers it. Installation is handled by professionals for electric models, so you don't need to touch the plumbing or wiring yourself.
Cost: A smart toilet costs more upfront than a basic pan. Whether it's worth it depends on how much you value the comfort features and how much you currently spend on toilet paper, water, and the occasional blocked-drain call-out. For many households, a retrofit bidet seat offers a similar day-to-day experience at a lower price point.
Where the Technology Is Heading
Smart bathroom technology continues to develop, with newer models integrating with voice assistants and home automation systems, and offering finer control over water pressure, temperature, and seat warmth. As the UK's push toward more water-efficient homes continues, expect these features to become more common and more affordable over time — much as central heating moved from luxury to standard over the course of the 20th century.
Make Your Bathroom More Comfortable
A smart toilet or bidet seat won't change your life, but it can make a daily routine noticeably more comfortable while cutting down on water and paper use. Whether you opt for a fully integrated model or a simple retrofit seat, it's a practical upgrade rather than a gimmick.
Curious which option suits your bathroom and budget? Our guide to bidet sprayers and seats for UK homes walks through the choices in more detail.