Cheapest place to buy an electric toothbrush in the UK
You are buying a razor-and-blades business. Price the blades.
The heads cost more than the handle, over time
Replacement heads are recommended every three months, and over a few years they add up to considerably more than the brush itself. The handle is priced to get you into a system; the heads are where the margin lives.
So the comparison that matters is the handle plus three years of heads. A cheaper handle that takes expensive proprietary heads is the more expensive purchase.
Model naming in this category is deliberately confusing
The major brands run long numbered ranges where adjacent numbers differ by a pressure sensor or a travel case, and the same handle appears under several names with different bundles. Retailer-exclusive bundle codes are standard, so the exact product at one shop often does not exist at another.
Compare the handle model, then compare what is in the box separately. Those are two different comparisons and merging them is how people overpay.
What actually drives the price
- Heads included, and how many. The single biggest variable in a bundle.
- Ongoing head cost, which is the real cost of ownership.
- Pressure sensor, which genuinely protects your gums and is worth having.
- Travel case and charging stand, which inflate bundles and are rarely used.
Before you buy
- Price a multipack of replacement heads for the model you are considering.
- Work out the handle plus three years of heads, and compare that.
- Check what is in the box on every listing — bundles differ by retailer.
- Decide whether you need a pressure sensor, and ignore the rest.