June 6, 2025, 7:16 pm | Read time: 3 minutes

Electric toothbrushes make daily dental hygiene easier. They are available from countless manufacturers, offering various features and price ranges. Some have a powerful battery that lasts a long time before needing a recharge. Others are particularly ergonomic or even come with an app feature. Which toothbrush is worth buying? With such a wide selection, the decision can be difficult. Perhaps the following product test can help you decide.

Test Winner: Laifen Wave–quiet, thorough, strong

The Laifen Wave secures first place with excellent cleaning performance, quiet operation (only 46 dB), and an innovative mix of oscillation and vibration. Despite its minimalist features, it impresses with ergonomics, long battery life (94 minutes), and a space-saving magnetic charging cable. Price: approximately 80 euros.

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Price Tip: Oral-B iO Series 2–affordable and effective

For beginners, the Oral-B iO Series 2 offers solid performance at a low price (approximately 59 euros). The proven magnetic drive technology cleans reliably, and three brushing modes ensure easy operation. It lacks app control and luxury features, but the price-performance ratio is right. Among the tested electric toothbrushes, this product ranked fourth.

Electric Toothbrushes in Test: More Highlights

• Philips Sonicare 9900 Prestige: with sonic technology and excellent cleaning effect.
• Playbrush Smart One: best battery life in the test (148 minutes), but slight weaknesses in bristle quality.
• Happybrush Eco Vibe 3: sustainable pioneer with recycled housing and bamboo brush heads.
• Oral-B iO Series 10: very smart but expensive–scores with app, precise cleaning, and long runtime.

Find the detailed test results from the BILD colleagues here.

The Test Criteria

All models had to pass under identical laboratory conditions.

Cleaning Performance

Plaque-disclosing tablets made the effectiveness of cleaning visible–especially in hard-to-reach areas like molars and along the gumline.

Everyday Usability

Grip, ergonomics, usability with wet hands, and noise level were tested in practical use.

Battery Performance

In continuous operation, the runtime with a fully charged battery was measured, as well as the charging speed.

Smart Features

If available, app connectivity, Bluetooth stability, brushing analysis, and additional features were evaluated.

Charging Technology & Accessories

Design, stability of the charging station, and the quality and price of replacement brushes were examined.

Sustainability

Materials, packaging, USB charging capability, and repair options like battery replacement (unfortunately not possible with any model) were assessed.

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What to Consider When Buying

• Brush Head Shape: Round heads (such as those from Oral-B) clean more precisely, while elongated ones cover more surface area.
• Noise Level: Large differences in the test–from whisper-quiet (Laifen) to noticeably loud.
• App Features: Only some apps (Oral-B, Playbrush) offer real added value. Others disappoint.
• Price of Replacement Heads: Large differences in the test–from whisper-quiet (Laifen) to noticeably loud.
• Sustainability: Some models focus on recycled materials and eco-friendly features.

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Conclusion

Good dental care doesn’t have to be expensive, but the details matter. The Laifen Wave offers a well-rounded package, while the Oral-B iO Series 2 is a real insider tip for bargain hunters. For those who travel a lot, battery life, noise level, brush head shape, and sustainability are key considerations.

Tip: Before buying, consider battery life, noise level, brush head shape, and sustainability.