usmile Q20 Children's Smart Electric Toothbrush: Sonic working principle
This usmile Q20 smart electric toothbrush is designed for parents who want to make brushing fun and effective for kids aged 3 to 15. It turns a daily chore into a playful routine, perfect for after-school or bedtime use.
Unlike basic brushes, it focuses on building healthy habits with three modes: Intelligent Anti-Cavity targets problem areas, Daily Cleaning keeps it simple, and Beginner Adaptation gently introduces brushing. The soft bristles and 30,000+ vibrations per minute clean thoroughly without discomfort. You will notice your child brushing longer because the gentle hum feels like a game.
With a 90-day battery life and USB charging, it stays ready for busy mornings. It works with Alexa for hands-free reminders, helping you ensure consistent care without nagging.
Features
- Intelligent anti-cavity brushing mode
- Daily cleaning mode
- Beginner adaptation mode
- USB charging
- Soft bristles
- 3 modes
- Vibration frequency 30000-33000 times/minute
- Battery life 90 days
- Charging time 4-5 hours
- Applicable for 3-15 years old
- Sonic working principle
General specs
- Brand: usmile
- Model: Q20
- Seller: Joom
- ID: 692831f1ecc2210198c3d7fb
- Timer: Yes
- Material: ABS
- Age Range: 2-6 years
- Power Source: Rechargeable
- Cleaning Modes: 2
- Brush Head Type: Round
- Charging Method: USB
- Bristle Material: DuPont
- Bristle Softness: Soft
- Water Resistance: IPX7
- Cleaning Technology: Sonic
- Replaceable Brush Heads: Yes
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Joom
| Date | Price |
|---|---|
| 2/24/26 | $138.17 |
| 12/6/25 | $140.19 |
Shipping options
United States
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| Brand | usmile | TEETHEORY | Marlincare | Philips | Umisr | COSLUS |
| Model | Q20 | GEHP206AB | M10PRO | HX9690/05 | C30 | |
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| Price | $138.17 | $19.99 | $26.99 | $199.99 | $29.99 | $8.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Feb 23, 2026 | Feb 2, 2026 | Feb 4, 2026 | Feb 7, 2026 | Dec 6, 2025 | Feb 7, 2026 |
| Timer | Yes | 2-minute | 2-minute | 2-minute | 2-minute | |
| Charging Method | USB | USB | Magnetic | Magnetic | ||
| Bristle Softness | Soft | Soft | Soft | Soft | ||
| Water Resistance | IPX7 | IPX7 | IPX8 | IPX7 | ||
| Technology | Sonic | Sonic | Sonic | Sonic | ||
| Travel Case | Yes | Yes | Yes | |||
| Battery Life | 45 | 180 | 30, 150 | |||
| Battery Type | Li-Polymer | Li-Polymer | Li-Polymer | |||
| Charging Port | USB-C | USB-C | USB-C | |||
| Brushing Modes | 3 | 5 | 5 | |||
| Pressure Sensor | Yes | Yes | Yes | Yes | ||
| Brush Heads Included | 8 | 4 | 2 | 2 | ||
| Vibrations Per Minute | 40000 | 55000 | <num1>, <num2> | |||
