Choosing an Oral-B iO replacement head starts with two decisions: which brush-head design you want, and how many heads you need. Gentle Care, Ultimate Clean and Radiant White belong to the iO family, but their bristle layouts and the packs sold at BrushHead differ.
This buying guide brings together manufacturer information and our current Australian catalogue. It is a product comparison, based on specifications and pack contents, rather than a hands-on performance test.
Compare the three designs
| Brush head | Design focus | BrushHead quantities | Colours |
|---|---|---|---|
| Gentle Care | Extra-soft bristles and a gentle brushing feel | 4, 8, 12 or 16 heads | Black or white |
| Ultimate Clean | Angled, dual-length bristles | 8 or 16 heads | Black or white |
| Radiant White | Bristles with polishing elements, designed for surface-stain removal | 4, 8, 12 or 16 heads | Black or white |
If you already use a head you like, matching its full model name is the most straightforward way to reorder. If you want a different design, compare its bristles and product description before committing to a larger quantity. The names alone do not tell you which head will feel best to you.
Oral-B describes Gentle Care as its gentle-feel iO option, Ultimate Clean around its bristle arrangement, and Radiant White around polishing surface stains. These descriptions do not establish a universal winner or guarantee a particular whitening result. See the Oral-B Australia FAQs, Ultimate Clean information and official Radiant White description.
Do these heads fit your Oral-B handle?
All three are for Oral-B iO handles. They do not fit the standard Oral-B Pro, Vitality, Smart or Genius fitting. Buying the same brand is not enough to confirm compatibility. Oral-B explains the distinction in its replacement-head guide.
Check the model printed on your handle, packaging or manual. If you are unsure whether your toothbrush is an iO, start with our toothbrush head compatibility guide before selecting a pack. These listings contain replacement heads; a toothbrush handle and charger are not included.
Which quantity should you buy?
Gentle Care and Radiant White are supplied in complete four-head retail packs. An eight-head order contains two packs; a twelve-head order contains three; a sixteen-head order contains four.
Ultimate Clean is supplied in complete eight-head retail packs. We offer eight or sixteen heads, and do not split these packs into four- or twelve-head orders.
| Total heads | Gentle Care / Radiant White | Ultimate Clean |
|---|---|---|
| 4 | A$33.99 | Not offered |
| 8 | A$58.99 | A$58.99 |
| 12 | A$85.99 | Not offered |
| 16 | A$110.99 | A$110.99 |
Prices checked on 23 September 2026, including GST and free Australian delivery. Check the linked product page for current pricing and availability. Each set contains your selected model and colour; it is not a mixed-model assortment.
Eight heads at A$58.99 work out to about A$7.37 each. Sixteen at A$110.99 work out to about A$6.94 each. A larger set can lower the unit cost once you know the model suits your routine, while a smaller available pack involves less upfront spending.
Check packaging and dispatch details
Our imported stock may have packaging or label languages that differ from Australian retail packs. The product listing explains the selected quantity and imported-stock details. A packaging photograph showing one retail box does not change the total number of heads selected in your order.
Orders paid before 2 pm Sydney time, Monday to Friday excluding public holidays, are dispatched that day. Orders paid at or after 2 pm, on weekends or on public holidays are dispatched on the next business day. Dispatch is the day an order leaves us; it is not a promise of same-day arrival. See our shipping policy for details.
Ready to choose? Browse all Oral-B iO brush heads and select the model, colour and total quantity before adding to your bag.