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Blue Kids' Electric Toothbrush for Boys Ages 5–9 with Cute Animal Design
Side view of Grin Teeth ET 4A Kids' Electric Toothbrush in blue with cartoon design
Back view of Grin Teeth ET 4A Kids' Electric Toothbrush with cartoon pattern
Side angle view of Grin Teeth ET 4A Kids' Electric Toothbrush with soft bristles
Angled view of Grin Teeth ET 4A Kids' Electric Toothbrush with cartoon face and soft brush head

Antibacterial Bristles | Kids Sonic Toothbrush (Boys 5–9)

Original price was: $49.99.Current price is: $44.99.

Grin Teeth ET 4A (Frog Edition) Kids Sonic Toothbrush for Boys 5–9 is built to make brushing easier to follow, gentler on growing gums, and more reliable for everyday use—so kids stay consistent and parents worry less.

  • 2-Minute Timer + 30-Second Zone Reminders: Guides a full, even clean by prompting kids to switch areas on time—less rushing, fewer missed spots, better daily habits.

  • Soft Silicone-Cushioned Brush Head: Adds a gentle buffer for sensitive mouths and little bumps—more comfort, less resistance at brushing time.

  • Antibacterial Flex-and-Recover Bristles: Help keep the brush head fresher and bounce back after bending—steady cleaning performance and a more hygienic feel.

  • Frog-Themed Design: Turns brushing into a fun daily routine kids actually want to do—more motivation, more independence, happier mornings and nights.

  • 41-Step Safety & Durability Checks: Built with strict testing for safety and long-term use—parents get peace of mind, kids get a toothbrush that holds up.

  • 1 × Electric Toothbrush Handle
  • 2 × Replacement Brush Heads
  • 1 × USB-C Charging Cable
  • 1 × User Manual
Most orders require 3 business days to prepare for shipment. Delivery times vary by region—please check the Shipping Information details.
You may return unused items within 30 days of purchase for a full refund, excluding the shipping cost. No restocking fee will be charged. Please refer to our Return and Refund Policy page for more details.
Grin Teeth offers a 1-year limited warranty on all electric toothbrushes and water flossers purchased from grinteeth.com. Please refer to our Warranty Policy page for more details.
Weight 0.45 kg
Dimensions 26 × 18 × 8 cm

Trusted Protection for Every Order

No Restocking Fee​​

30-Day Return & Refund​​

1-Year Warranty​​

Secure Checkout​​

Worldwide Shipping​​

Grin Teeth ET 4 fun children’s electric toothbrushes with playful blue and pink character designs motivating kids to brush independently
Grin Teeth ET 4 fun kids electric toothbrush with cute blue and pink character designs for playful daily brushing
Close-up of Grin Teeth ET 4 fun kids toothbrush heads with ultra-soft rounded bristles and antibacterial protection for gentle daily brushing
Grin Teeth ET 4 kids toothbrush with soft silicone wrap around the brush head to protect gums and provide a gentle, fun brushing experience

A Fun Kids’ Electric Toothbrush That Makes Brushing Safer, Easier, and Truly Enjoyable

Playful Designs That Inspire Kids to Brush on Their Own

  • Cute characters and cheerful colors turn brushing into a moment kids look forward to every day.

  • Encourages independence—kids reach for the brush on their own without constant reminders.

  • Helps build lasting healthy habits through joy—not pressure.

Ultra-Soft, Rounded Bristles for Gentle Gum Care

  • Soft, finely rounded bristle tips reduce irritation for sensitive young gums.

  • Effective yet gentle cleaning supports daily brushing without discomfort.

Antibacterial Bristle Protection for a Cleaner, Safer Smile

  • Antibacterial bristle technology keeps the brush hygienic between each use.

  • Supports healthier daily oral care for growing children.

Soft Silicone Wrap That Prevents Gum Bumps & Tooth Collisions

  • Cushion-like silicone edges protect gums from accidental bumps during brushing.

  • Especially helpful for younger kids still developing hand coordination.

Close-up of Grin Teeth ET 4 kids toothbrush bristles showing 2.5× bend recovery strength for deep, effective cleaning between teeth without deforming
Grin Teeth ET 4 kids toothbrush bristles shown fitting closely along tooth curves, providing gentle, effective cleaning for young teeth

Deep Cleaning That Parents Can Trust

Reaches Where Little Hands Can’t

The ultra-flexible bristles slide effortlessly between tiny teeth, lifting plaque from hard-to-reach gaps. Your child gets a truly effective clean—without needing perfect brushing skills.

Gentle but Powerful Protection

Every bristle tip is soft, rounded, and designed to prevent enamel wear. It’s tough on plaque but tender on young teeth—exactly what growing smiles need.

Built to Stay Effective Over Time

Engineered with 2.5× industry-standard bend recovery, the bristles stay upright and springy instead of collapsing. Parents no longer worry about brushes deforming after just a few uses.

Grin Teeth ET 4 kids toothbrush with golden-length handle, shown in a child’s hand for a secure, comfortable grip for ages 5–9
Grin Teeth ET 4 kids toothbrush with eco-friendly matte PU handle providing a soft, non-slip grip for safer, steadier brushing

Designed for Small Hands, Safe for Growing Smiles

Perfect Grip Size for Ages 5–9

Thoughtfully designed with the ideal length and diameter, the handle fits naturally in small hands. Your child brushes more easily, more accurately, and with better control—helping establish healthier habits and reducing the daily “brush your teeth!” battles.

A Handle Kids Can Hold with Confidence

The eco-friendly matte PU handle stays comfortably in your child’s hand—soft, non-slip, and secure. Even when their hands are wet or wiggly, the brush won’t slip.

Builds Children’s Confidence in Brushing

A electric toothbrush that feels easy to hold makes brushing feel less like a chore and more like something they can do on their own.

A Quiet Motor That Cleans Better

40% Less Noise for a Stress-Free Brushing Experience

The noise-optimized motor significantly reduces vibration noise, making brushing gentle and non-intimidating—even for noise-sensitive children. A quieter brush means fewer battles and a smoother bedtime routine.

95% Better Plaque Removal for Healthier Growing Teeth

Engineered for powerful yet child-safe cleaning, the enhanced motor improves plaque removal efficiency. Parents gain confidence knowing every brushing session truly protects their child’s developing smile.

Designed to Keep Kids Comfortable and Engaged

Less noise + better cleaning = a toothbrush kids actually enjoy using. And when kids enjoy it, they brush longer and better—helping parents build strong lifelong habits with ease.

Grin Teeth ET 4 kids toothbrush with noise-optimized motor showing 40% less vibration noise and 95% improved plaque removal
Internal structure of Grin Teeth ET 4 kids toothbrush showing button components tested to withstand 10,000 on/off cycles for durability
Internal structure of the Grin Teeth ET 4 kids toothbrush showing motor and circuit design with 21 in-process checks and 20 final inspections

Engineered for Reliability, Trusted by Parents

Built to Withstand Everyday Use

The ET 3’s power button mechanism passes 10,000 on/off cycles, ensuring it stays responsive no matter how kids press, poke, or play with it.

Quality Checked at Every Step

With 21 in-process quality checks and 20 final inspections, every toothbrush meets strict safety and durability standards. You’re not just buying a tool—you’re choosing reliable protection for your child’s developing teeth.

Peace of Mind in Every Detail

From the internal motor structure to the tiny components, each part is engineered for stable performance. 

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