Side-by-side feature comparison
Compare Sonicare 5100 vs iO Series 4
Specifications
| Spec | Sonicare 5100 | iO Series 4 |
|---|---|---|
| Price Tier | Mid-range | Mid-range |
| Cleaning Modes | 3 | 4 |
| Intensity Settings | 3 | 0 |
| Battery Life | ||
| Pressure Sensor | Yes | Yes |
| BrushSync | Yes | Yes |
| Bluetooth | Yes | No |
| Travel Case | Yes | Yes |
| Brush head families | P3 Premium Sensitive, C3 Premium Plaque Defense, TongueCare+ | — |
| In the box | — | — |
| HX SKU | HX6850/57, HX6850/60 | — |
Which is right for you?
Cleaning performance: Sonicare 5100 uses sonic vibration for deep cleaning; iO Series 4 combines oscillation with rotation. Both excel at plaque removal with different mechanisms.
Smart features: iO Series 4 offers more advanced connectivity and smart app integration; Sonicare 5100 focuses on mechanical performance without smartphone features.
Battery life: Sonicare 5100 typically lasts 2–3 weeks on a charge; iO Series 4 lasts about 1 week, making Sonicare the better choice for frequent travelers.
Pros and cons
Sonicare 5100
Pros
- Smart app integration helps build consistent routines
- Versatile modes cover everyday, sensitive, and tongue care
- Good middle-ground between basic and premium features
Cons
- App functionality requires smartphone access
- 14-day battery is shorter than premium models
- Fewer intensity options compared to 7500+ series