We tested eight electric toothbrushes over 60 days in Utrecht, ranking them on cleaning quality, feel, battery life, and NL price. Oral-B took two of the top three spots. Below: the ranked list, honest picks by budget, and where to buy in the Netherlands.
How we tested
The 2026 rankings
- 01Oral-B iO Series 9Best overall — €189–211 · ~12 day battery · 4.6/5
The iO9 earned the top spot the same way it earns its price tag: the pressure sensor and colour display change how you brush. In our disclosing-tablet test, testers on the iO9 had visibly less plaque along the lower molar gumline by week two compared with sonic testers, and that gap held at day 60. The magnetic drive is genuinely quieter than any other Oral-B — about 64 dB against 74 dB on the Pro series — and the three-colour pressure ring retrained two of our four testers within a fortnight. Not perfect: battery life at 12 days is beaten by every premium Sonicare, replacement heads run €7–9 each, and the app novelty fades after two to four weeks.
- 02Philips Sonicare 5100Best sonic pick — €69–89 · ~14 day battery · 4.4/5
The honest pick if you have receding gums, sensitivity, or hate mechanical brush noise. The sonic vibration distributes force wider than the Oral-B round head, which our tester with gum recession preferred immediately. It's not our overall winner because on plaque removal — measured with disclosing tablets — the round head consistently pulled slightly ahead. The 2023 van der Sluijs meta-analysis of 2,805 participants found the same result: a small but statistically significant edge for oscillating-rotating. If your teeth are crowded or you wear a permanent retainer, still go Oral-B. If your gums are the concern, this is the pick.
- 03Oral-B iO Series 6Best value iO — €129–169 · ~14 day battery · 4.5/5
The "just right" iO for most buyers. You get the magnetic drive, the colour display, the pressure ring, Bluetooth tracking (6 zones rather than 16), and a travel case. What you lose against the iO9 is enhanced app tracking and AI position detection. For 80% of users the app novelty ends before the tracking depth matters — so skip the iO9 upgrade unless you know you'll use it.
- 04Oral-B Pro 3 3900Best budget pick — €77 duo pack · ~14 day battery · 4.5/5
Same round head as the iO models. Older mechanical drive motor. Basic pressure sensor. Three cleaning modes. A two-minute timer that pulses every 30 seconds. That is the entire brush — and it does 90% of what the iO9 does at a third of the price. If our editor-in-chief were buying one brush for their partner without telling them what it cost, this is what he'd pick. Not quiet. Not smart. Cleans excellently.
- 05Philips Sonicare 4100Best entry sonic — €49–69 · ~14 day battery · 4.3/5
Solid entry-level sonic. Two-minute timer, pressure sensor, one mode. Third-party heads run €2–3 each, dragging five-year cost below any Oral-B iO.
- 06Oral-B iO Series 10Overkill for most — €249–429 · ~14 day battery · 4.6/5
Objectively the most feature-packed brush in the range. The iOsense smart charger has an LED display that guides you through six mouth sextants without opening the app. Fantastic engineering. Not €200 better than the iO9 for anyone we tested. Wait for it to drop to €229 during Black Friday if you want the flagship — otherwise the iO9 delivers 95% of the experience.
- 07Philips Sonicare DiamondClean 9000Best premium sonic — €199–269 · ~21 day battery · 4.5/5
If travel matters — actual monthly travel, not "I go to Ibiza once a year" travel — this is the pick. Three-week battery life, compact USB-C travel case, and the nicest-looking brush we tested by a distance. Not in our top three because on plaque removal it lost narrowly to the iO9 in our disclosing tests. But if you brush well and value design and travel-friendliness, this beats the iO9 on lifestyle fit.
- 08Oral-B VitalitySkip it — €25–39 · ~7 day battery · 3.6/5
The cheapest Oral-B. No pressure sensor, no quadrant pacing, single mode. The €30 you save against the Pro 3 3900 is not worth losing pressure feedback — which is the one feature with the clearest evidence behind it. Step up to the Pro 3.
★Comparison at a glance
| Model | Price (EUR) | Battery | Cleaning tech | Best for |
|---|---|---|---|---|
| Oral-B iO Series 9 | €189–211 | 12 days | Magnetic iO | Overall pick, tech-savvy |
| Philips Sonicare 5100 | €69–89 | 14 days | Sonic | Sensitive gums |
| Oral-B iO Series 6 | €129–169 | 14 days | Magnetic iO | Best value iO |
| Oral-B Pro 3 3900 | €77 duo | 14 days | Oscillating | Budget pick |
| Sonicare DiamondClean 9000 | €199–269 | 21 days | Sonic | Frequent travellers |
The three brushes not in this table — the Sonicare 4100, the iO Series 10 and the Vitality — are ranked above but sit outside the shortlist most buyers should be choosing between.
Oral-B iO Series 9 — our overall pick for the NL market
Top of our eight-brush test. The iO Series 6 at €149 and the Pro 3 3900 duo at €77 are the value picks from the same range.
🇳🇱 Prices sampled from Coolblue, Bol.com and MediaMarkt on 16 September 2026 — NL Black Friday falls on 27 November and historically drops flagship models 40–55%. Affiliate link — we may earn a commission at no extra cost to you.
Which one should you actually buy?
Skip the marketing. Answer three questions.
✓Braces, retainer or crowded teeth?
- Buy an Oral-B round head. The small circular head navigates brackets and crowding better than any oval sonic head.
- This is the one place the evidence is unambiguous — a 2019 orthodontic crossover trial (Erbe et al., 44 adolescents) found significantly more plaque removed by rotation-oscillation than sonic (p=0.017).
- Pick between the Pro 3 3900 at €77 or the iO Series 6 at €149.
–Sensitive gums or recession?
- Buy Sonicare. Sonic motion spreads force across a wider area than a rotating head pressed onto a spot.
- The 5100 covers most cases. DiamondClean 9000 if budget allows.
Neither? Just want a good brush? The Oral-B iO Series 6 at the €149 sale price is the sweet spot. If that stretches the budget, drop to the Pro 3 3900 duo at €77. Do not buy the iO10 unless you have money to spare.
Black Friday 2026 timing note
NL Black Friday falls on 27 November 2026. Based on historical pricing:
- iO Series 10 typically drops from €429 to €245–265 (43–55% off)
- iO Series 9 drops from €329 to €169–189 (48–55% off)
- iO Series 8 drops to the €188 area
- Pro 3 3900 duo can hit €63
Watch for inflated "was" prices. Some retailers raise MSRP in mid-October to make the discount look bigger.
Frequently asked questions
Is Oral-B or Sonicare better? Neither universally. Oral-B cleans slightly better in independent meta-analyses. Sonicare is gentler on sensitive gums and has better battery life. Pick by gum status.
How often should I replace the brush head? Every three months, per ADA and Dutch dental guidelines. On any brush.
Do I need the app? No. The pressure sensor and two-minute timer do the real work. Apps help for two to four weeks, then most people stop opening them.
Which is best for kids? For under-12s, the Oral-B Junior (€35–45) or a manual soft brush. Full-power adult electrics can be too intense.
Best deal in the Netherlands right now? Coolblue's iO9 Value Pack at €211 is the best full-price deal today. Wait until 27 November for Black Friday if you can.
Final take
Two rules for shopping electric toothbrushes in 2026: never buy one without a pressure sensor, and don't overpay for smart features you'll use for three weeks.
The Oral-B iO Series 6 at €149 hits both marks. The iO9 justifies its premium only at Black Friday pricing.
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