Side-by-side comparison based on expert reviews and community consensus.
Philips Sonicare 1100 Series
Best Budget Entry PointPhilips Sonicare DiamondClean 9900
Best Premium PickPrice
$20-$30
$200-$380
Summary
At around $20, it's the cheapest way into the Sonicare ecosystem with a built-in timer. Reddit's consensus is clear: the timer is all you actually need.
The top of the Sonicare line with the DiamondClean brush head that Reddit users say makes their teeth feel like they just left the dentist. Built for people who want the absolute best.
Pros
- Lowest price point in the Sonicare lineup (~$20)
- Includes a built-in 2-minute timer — the single most important feature
- Gentle on gums, good for sensitive mouths or first-time electric brush users
- Same core sonic cleaning technology as pricier models
- DiamondClean brush head delivers a noticeably superior clean per user reports
- Premium build quality with sleek design and travel case
- Multiple brushing modes including whitening, gum care, and deep clean
- Strong community praise specifically for the DiamondClean head's feel
Cons
- Less powerful than higher-tier models — not ideal for heavy plaque buildup
- No pressure sensor
- No multiple brushing modes
- Basic design with minimal features beyond core brushing
- Expensive — $300-$380 is hard to justify for most people
- Replacement DiamondClean brush heads cost more than standard heads
- Smart features and app connectivity add complexity many users ignore
- Diminishing returns over the 4100 for actual plaque removal
Our take
Don't overthink it. If you're new to electric toothbrushes or buying one for a family member who won't use the fancy features, the 1100 does the job. Everything else is a gimmick.
If you're spending $200+ on a toothbrush, the DiamondClean head is what justifies it. The community is vocal about how different it feels — and that's not nothing.
Buy
