Electric toothbrush heads: which fit, and when to replace them
Last checked 2026-10-07.
Per each maker's own pages, no head fits across brands: the Dyson CameraJet, Oral-B iO and Sonicare each use their own heads. All three makers say to replace a head about every 3 months, which is 4 heads in 12 months for one person. Oral-B iO heads fit only iO handles, not older Oral-B brushes. Sonicare click-on heads fit most Sonicare handles, but not Philips One, Essence, Essence+ or Xtreme. The Dyson head carries an RFID tag, so the brush tells you when to change it.
Heads, side by side
| Dyson CameraJet | Oral-B iO Series 10 | Sonicare 9900 Prestige | |
|---|---|---|---|
| Head system | Dyson CameraJet dual-bristle heads | Oral-B iO heads | Sonicare click-on heads |
| Heads named by the maker | Regular and Sensitive dual-bristle heads (the Sensitive head has softer bristles) | iO Ultimate Clean, iO Gentle Care, iO Ultimate White | the 9900 Prestige comes with the A3 All-in-One head |
| Fits | Dyson's page names only its own CameraJet dual-bristle heads; it names no other compatible head | every iO handle; not the older Oral-B oscillating-rotating handles | most Sonicare handles; the exceptions are Philips One (its own heads) and the older Essence, Essence+ and Xtreme (screw-on heads) |
| Replace | every three months | every 3 months | every three months of normal use (brushing twice a day), or when the blue indicator bristles wear out |
| Reminder | each head carries an RFID tag, and the toothbrush alerts you when the head needs replacing | blue indicator bristles fade to white with use | some Sonicare handles flash a replacement icon |
| Sources | Dyson US product page (FAQ and specifications) | Oral-B US page, iO Ultimate Clean replacement heads | Philips US: which brush head fits my Sonicare; Philips US: how often to replace a Sonicare head; Philips US product page, HX9834/91 |
Kinds of claim on this page: every fit and replacement statement is a manufacturer claim from the maker's own page, read 2026-10-07. "4 heads in 12 months" is a replacement every 3 months, counted over 12 months; it is not a maker figure. No prices are shown: check the retailer for the current price.
Before you buy heads
- Check the handle's model name first. An Oral-B head for an older handle does not fit an iO handle, and the other way round.
- For a Sonicare, check that the handle is not a Philips One, Essence, Essence+ or Xtreme. These use other heads.
- For the Dyson CameraJet, Dyson's page names only its own Regular and Sensitive dual-bristle heads.
The three brushes compared on specs, sensors and ADA Seal status: Dyson CameraJet vs Oral-B iO Series 10 vs Sonicare 9900 Prestige.
We tested nothing. This page gives no dental advice.