Best Electric Toothbrush: Oral-B Pro 3 vs Oral-B iO3 vs Philips Sonicare 4100 vs 1100
Affiliate disclosure: Product links on this page are affiliate links (marked Ad). As an Amazon Associate I earn from qualifying purchases, at no extra cost to you. See Disclosure. This is a research-based guide: specs below are taken from the manufacturers’ Amazon.in / Amazon.co.uk product pages as listed on 1 November 2026, not from hands-on testing. Prices change daily, so none are quoted — check the live page.
The two features that change brushing habits are a pressure sensor (stops you scrubbing your gums) and a two-minute timer with 30-second prompts. Most mid-range electric toothbrushes have both; the real choice is rotating head (Oral-B) versus sonic (Philips), and how much you’ll pay for extra modes. This guide compares four.
Quick picks
- Rotating head with pressure sensor and three modes: Oral-B Pro 3Ad (UK)
- Oral-B’s newer iO platform, micro-vibrations, IPX7: Oral-B iO3Ad (UK)
- Sonic with pressure sensor, two intensities: Philips Sonicare 4100Ad (UK)
- Simple first electric brush, 2-week battery: Philips Sonicare 1100Ad (UK)
Comparison
| Oral-B Pro 3 | Oral-B iO3 | Sonicare 4100 | Sonicare 1100 | |
|---|---|---|---|---|
| Type | Rotating, crisscross bristles | Round head, tuft-in-tuft micro-vibrations | Sonic | Sonic |
| Pressure sensor (as listed) | Yes | iO pressure sensor | Yes | Not listed |
| Modes / intensities | Daily, Sensitive, Whitening | Cleaning, Sensitive, Whitening | Two intensity settings | Gradual power ramp-up |
| Timer | 2 min, quadrant timer | Not in bullets | SmarTimer with QuadPacer | SmarTimer with QuadPacer |
| Maker plaque claim | 100% more vs manual | Up to 100% more vs manual | Up to 5× vs manual | — |
| Other | 2-year warranty (title) | IPX7; 2-year warranty | — | Battery indicator; one charge lasts 2 weeks |
| Stores | IN + UK | IN + UK | IN + UK | IN + UK |
Oral-B Pro 3
Oral-B lists three modes, a pressure sensor that alerts you when you push too hard, and a two-minute timer split into four 30-second quadrants. Pick it if you like the feel of a small round rotating head. Skip it if you prefer a quieter sonic brush.
Oral-B iO3
The iO platform pairs a round head with “tuft-in-tuft” bristles and micro-vibrations, plus Oral-B’s iO pressure sensor, three smart modes and IPX7 water resistance. Pick it for Oral-B’s newer tech without top-tier extras. Skip it if brush-head cost matters — iO heads are a separate system from Pro heads.
Philips Sonicare 4100
Philips lists a pressure sensor, two intensity settings for sensitive gums and SmarTimer with QuadPacer. Pick it for a sonic brush with the two key habit features.
Philips Sonicare 1100
The entry model lists the QuadPacer timer, a slim handle, a gradual power ramp-up for new users and a two-week battery. No pressure sensor is listed. Pick it as a first electric brush. Skip it if you know you brush too hard.
What the listings don’t tell you
- Brush-head cost over time often exceeds the handle price over a few years. Check replacement packs before choosing.
- Plaque claims are maker comparisons against manual brushing, not against each other.
- UK plug. The UK iO3 lists a 2-pin bathroom plug.
Bottom line
Brush too hard? Get a pressure sensor: Pro 3, iO3 or Sonicare 4100. Just starting out: Sonicare 1100.