Oral-B iO: $59.99 Reported at Amazon in December

What changed since our last update

The page we replaced said the iO had an "all-time low of $49," a "Series 5 $100 confirmed June 17, 2026" price and that the Series 9 "dropped 45% to its lowest price ever." We can't source those, and iO models differ a lot. We removed them and now show prices by model.

Slickdeals (December 10, 2025) posted the iO Deep Clean at $59.99 against $110 at Amazon. Slickdeals (January 1, 2026) posted the iO Series 2 Complete Clean 2-pack at $69.99 against $100 at Costco.

Why check the history on a $60 to $110 toothbrush

The iO line has many models, and a 2-pack at Costco isn't comparable with a single brush at Amazon.

• iO Deep Clean $59.99 (Dec 10, 2025, Amazon) against $110: $50.01 off, about 45% (our arithmetic).
• iO Series 2 2-pack $69.99 (Jan 1, 2026, Costco) against $100: $30.01 off, about 30% (our arithmetic).
• The Series 2 deal was at Costco, not Amazon.

The free Zroppix extension puts that history on the Amazon listing itself: the last 90 days of price for the exact version you have open, a BUY or WAIT verdict based on where today's price sits in that range, and an alert if you would rather wait. No account is needed to see the history.

How to tell whether today's price is fair

We don't publish a price chart or a predicted price for the Oral-B iO electric toothbrush on this page, because we can't back one up with recorded data here. What we can give you is a method that works for any product, and the free Zroppix extension that applies it for you on the Amazon page.

1. Confirm the exact version. Model year, size, colour and bundle can each change the price. Read the title and the variant selector, not just the headline.
2. Open the price history. Use the Zroppix extension (90-day history on Amazon pages) or another tracker such as CamelCamelCamel or Keepa. Where Amazon shows its own price history link, use that too.
3. Compare today's price with the lowest in the window. At or near the low is a fair price. A big "percent off" badge on its own proves little, as our guide to sale badges explains.
4. Check who sells it. Amazon or the brand is safest. Compare against the manufacturer's own site, which may run separate promotions.
5. Set an alert if the price isn't right yet, and decide on your own timeline. Nobody can tell you what the price will do next.

Which iO model and what's in the box

• Model: Series 2, Series 3, Deep Clean and others differ in modes and features.
• Pack: check whether you're buying one brush or two, and which brush heads are included.
• Replacements: brush heads are an ongoing cost.

This is a buying guide, not dental advice. We haven't tested the toothbrush. Ask your dentist what suits you.

Common mistakes to avoid

• Comparing different iO models.
• Comparing a 2-pack with a single brush.
• Trusting a "$49 all-time low." We can't source it.
• Forgetting the cost of replacement heads.

Compare before you decide

If the price isn't right, or you want to compare options, these are worth a look.

Oral-B iO price reference points

Dated reports from named sources, not today's prices. Different models, sizes and sellers are priced differently.

Honest pros and cons

Before you buy

A quick checklist for this purchase.

• Confirm the exact model in the listing title and variant selector.
• Check what's included: bundle, accessories, colour.
• Open the price history for that exact model.
• Compare today's price with the lowest in the window.
• Check the seller and the return window.
• Set an alert if the price isn't right yet.

Keep going

Frequently asked questions