I test electric toothbrushes for a living — and these 9 Prime Day deals are so good I'm buying extras

The ISSA 3 is the most unusual toothbrush I've ever used, and I mean that in the best way. The soft silicone bristles feel more like a manual brush but with electric cleaning power. Perfect for sensitive teeth without that harsh buzzing sensation.

The Oral-B iO3 is a basic smart toothbrush that tracks brushing time and pressure. The round brush head does a good job at cleaning, and it comes with one replacement head. The pressure sensor helps prevent brushing too hard. At $40 off, it's a decent entry point into electric toothbrushes.

The Laifen Wave has the most innovative design on this list, with a unique 60° oscillating head that moves side-to-side instead of spinning. You can customize the intensity through the app, making it perfect for sensitive teeth. Plus, the 30-day battery life beats most Oral-B and Philips models.

The Oral-B iO3 is a basic smart toothbrush that tracks brushing time and pressure. The round brush head does a good job at cleaning, and it comes with one replacement head. At $20 off, it's a decent entry point into electric toothbrushes.

This smart toothbrush gives you three cleaning modes — clean, white, and gum care, so you can target exactly what your mouth needs. It handles all the essentials while boosting gum health up to 100% more than brushing manually, making it a solid upgrade from your basic toothbrush.

The Suri toothbrush's reputation precedes it, and I get the hype. Excellent cleaning power plus thoughtful extras like a UV travel case that sterilizes your brush head. The ergonomic handle feels premium, and sustainable materials are a bonus. Simply put, it's the best overall electric toothbrush you can buy.

The Quip Ultra ditches traditional spinning for sonic vibrations, and honestly, it works better than expected. The touch-sensitive intensity slider gives you precise control over cleaning power, while the 30-day battery life beats most competitors. It's sleek, effective, and proves Quip has seriously upped their game.

The iO7 brings serious smart features at $100 off the regular price. The pressure sensor keeps you from brushing too hard, while the display shows cleaning modes and battery life. With 5 personalized settings and app tracking, it's tech-savvy brushing without the premium cost.

The Oral-B iO9 is one of the best brushes I've ever used because it actually makes you better at brushing. The smart pressure sensor corrects your technique in real-time, while 3D teeth tracking ensures you hit every surface. Yes, it's pricey even with the $91 discount, but the cleaning performance and AI-powered guidance are genuinely game-changing if you want the most advanced dental tech available.