The Oral-B electric toothbrush our dentists chose, and the one we sell: the Oral-B iO9 Black Onyx, £164.99 against Oral-B's £500 list price. A 360° pressure ring that shows too hard, too soft or just right, an interactive colour display, seven modes, three-hour magnetic charging and a charging travel case, with same-day dispatch before 4pm and free UK delivery.
Read more: Oral-B electric toothbrushesThe Oral-B electric toothbrush our dentists chose, and the one we sell: the Oral-B iO9 Black Onyx, £164.99 against Oral-B's £500 list price. A 360° pressure ring that shows too hard, too soft or just right, an interactive colour display, seven modes, three-hour magnetic charging and a charging travel case, with same-day dispatch before 4pm and free UK delivery.
Why the iO9, out of the whole Oral-B range
Step down from the iO9 and every model gives something up: fewer modes, no colour display, slower charging, app tracking of six zones instead of 16 or, on the Vitality and Pro, no micro-vibrations at all. Step up to the iO10 and you pay far more for a light-up charger; the brush in your hand is the same. Our guide to every Oral-B model and our iO9 vs iO10 comparison set it out model by model.
Buyer's questions
Which Oral-B electric toothbrush is best?
For most adults, the iO9: pressure feedback you can see, a colour display, seven modes and optional coaching in the Oral-B app, in one handle. Our dentist's iO9 review makes the full case.
Is Oral-B a sonic toothbrush?
No. The iO is oscillating-rotating: a round head turns back and forth around each tooth, with micro-vibrations added. Sonic brushes such as Philips Sonicare vibrate a brush-shaped head from side to side. Research gives the round-head design a small edge for plaque and gum bleeding, and the iO9 costs far less than a premium Sonicare, with cheaper heads: see our iO9 vs Philips Sonicare comparison.
Which heads does the iO9 take?
Oral-B iO heads only. Our genuine iO replacement heads are £20 for four, a year's supply for one person, or £18 with subscribe and save.
Do you sell children's electric toothbrushes?
The Oral-B iO Kids and Pro Kids are coming soon. Our guide to electric toothbrushes for kids covers which suits which age, and for teenagers ready for a full-size brush, we choose the iO9.
Buying your first iO? The £180 Complete Care Bundle adds four heads and a Biorepair Plus toothpaste, saving £11.98. Unopened items can come back within 30 days, and a question sent through our contact page reaches one of the dentist team.
Choose with confidence
Find the right fit for your routine.
A smarter clean
Choose the Black Onyx iO9 for a colour display, visible pressure guidance and optional app coaching.Fluoride-free toothpaste
Compare Sensitive Teeth with 24% microRepair® and Total Protection with 20%, as listed by Coswell.From the journal
Best Oral-B electric toothbrush 2026: a UK dentist's guide to every model, from Vitality to iO10
Best electric toothbrush for kids (UK): a dentist's guide by age, from toddlers to teens (2026)