Oral-B iO2 Electric Toothbrush
Today
Typical price£35
Amazon: the cheapest today among the stores checked
Buy on AmazonOral-B iO2 Electric Toothbrush or Philips Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush?
iO2 Electric Toothbrush costs £4 less today, across the stores checked.
Oral-B iO2 Electric Toothbrush is £4 the cheaperPhilips Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush is the cheaper
The comparison in detail
Philips Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush
Today
Typical in 2 days£39
last price seen in the stores checked
Buy at the storeAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
- Hover, tap or use the arrow keys to see each day
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 07/11/2026
iO2 Electric Toothbrush
- Amazon Lowest price£35Buy on Amazon
Spec sheet side by side
| Item | iO2 Electric Toothbrush | Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush |
|---|---|---|
| Specs | ||
| Type changes | Rotating and others | Sonic |
| General | ||
| Model changes | iO2 Electric Toothbrush | Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush |
Other comparisons
iO2 Electric Toothbrush orBraun Oral-B Vitality Pro D103 electric toothbrush£36Compare- Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush orBraun Oral-B Vitality Pro D103 electric toothbrush£36Compare
iO2 Electric Toothbrush orOral-B PRO 600 Pink Electric Rechargeable Toothbrush£35Compare
Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush orOral-B Junior 8006540743027 electric toothbrush Child Rotating£40Compare- Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush orOral-B PRO 600 Pink Electric Rechargeable Toothbrush£35Compare
Sonicare 2100 series 2100 Series HX3651/13 Sonic electric toothbrush orPhilips Sonicare 3100 Electric Toothbrush£40Compare
How we choose
Source: Catalog of partner stores, checked on 07/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, including VAT. The model is the brand plus the name of the electric toothbrush; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure how well it cleans or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.