| What it does | The world's first AI-connected smartbrush that cleans your entire mouth in 20 seconds
| Hear your own night
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| Stage | Established
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| Founded | 2020
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| Based in | US
| JP
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| Pricing model | Not given
| Freemium
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| Pricing | Founder's Edition Bundle: $299 (or starting at $27/mo with 0% APR), includes Smartbrush with handle and charger, personalized TrueFit Mouthpiece, 3 tubes of Feno® Foam, and tongue scraper. Founder's Edition Plus: $399 (or starting at $37/mo with 0% APR), adds 1-year subscription to AI-powered health
| Free basic recording and playback. Paid plans: ¥380 a month, $4.99 a month, or prices shown in your store, for access to weather data and sound library.
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| Key features | - Built-in oral scanner for photo analysis and health tracking
- Personalized seven-size TrueFit Mouthpiece
- AI-powered health coach via app
- Health correlation insights linking oral health to systemic risks
- Historical trend tracking and early risk assessments
- Instant magnetic wireless charging with 7-day battery
- Works without Wi-Fi for basic brushing functionality
- Proprietary Feno Foam xylitol toothpaste or compatible with traditional toothpaste
| - One-tap recording at bedtime and morning
- Loud minute tracking with peak identification
- Playback of loudest moments
- Mark sounds as 'not me' to identify whose sound it was
- 14-day audio retention on device
- Trend charts comparing nights to your usual
- Integration with health apps via Health Connect
- Shareable night record images
- Sound library with sleep music and rain sounds
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| What makes it different | - Cleans entire mouth in 20 seconds versus 2 minutes for standard toothbrushes
- Brushes all teeth simultaneously instead of one at a time
- 99% plaque removal in internal pilot studies
- Connects oral health insights to broader systemic disease risks
- Only full-mouth U-shaped electric toothbrush with AI-powered analysis
| - No diagnosis or medical claims—only your own recording and numbers
- All recordings stay on your phone; sounds never leave the device
- Basic recording and playback always free with no limits
- Compares only to your own usual, never to population norms or targets
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 36 ▼ −1 (down) since last check | 6 ● no change since last check |
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| Trust Flow (Majestic) | 30 | 0 |
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| Citation Flow (Majestic) | 26 | 9 |
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| Referring domains (Majestic) | 305 | 4 |
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Feno®
Nagi