COOBST U-Shaped Electric Toothbrush for Adults, vs Martenit Ultrasonic Toothbrush for Adults
Updated August 2026 — COOBST U-Shaped Electric Toothbrush for Adults, wins on waterproof and ease of use, Martenit Ultrasonic Toothbrush for Adults wins on material quality and portability.
The COOBST toothbrush offers superior cleaning capabilities at a lower price, making it the better choice for budget-conscious consumers.
Why COOBST U-Shaped Electric Toothbrush for Adults, is better
Price
COOBST is $10 cheaper than Martenit.
Cleaning Speed
COOBST achieves deep cleaning in just 60 seconds.
Waterproof Rating
COOBST has a higher IPX7 waterproof certification.
Why Martenit Ultrasonic Toothbrush for Adults is better
Charging
Martenit features convenient wireless charging.
Material
Martenit uses food-grade silicone for better durability.
Gum Care Mode
Martenit includes a specific gum care mode.
Overall score
Specifications
| Spec | COOBST U-Shaped Electric Toothbrush for Adults, | Martenit Ultrasonic Toothbrush for Adults |
|---|---|---|
| Charging | Not specified | Wireless charging |
| Material | Plastic | Food-grade silicone |
| Modes | 4 modes | 4 modes |
| Waterproof | IPX7 | Water resistant |
| Vibrations | 48,000 | High-frequency |
Dimension comparison
Overview of the Products
The COOBST U-Shaped Electric Toothbrush for Adults is priced at $21.99, while the Martenit Ultrasonic Toothbrush for Adults is available for $31.99. This means the COOBST is about 31% cheaper than the Martenit model. Both toothbrushes feature a U-shaped design intended to enhance cleaning efficiency, but they come with different functionalities and design elements that may appeal to different users.
Design and Ergonomics
The COOBST features an ergonomic U-shaped design that conforms to the natural shape of the teeth, providing 360° cleaning coverage. This design aims to reduce missed spots, making daily brushing easier and more effective. In contrast, the Martenit toothbrush also sports a U-shape, but emphasizes its ability to clean all directions due to high-frequency sound vibrations. While both designs focus on comprehensive coverage, the COOBST's design is specifically aimed at maximizing comfort during use.
Cleaning Modes
The COOBST offers four distinct cleaning modes: Standard Clean, Pro Clean, Whitening Clean, and Rhythmic Massage, catering to various oral care needs. Each mode is designed to target specific concerns, such as daily care or gum health. On the other hand, the Martenit toothbrush also has four modes, including Powerful, Medium, Gum Care, and Whitening, but it specifically highlights the need for a whitening gel to enhance the whitening effect. Both products provide versatility, but the COOBST offers a more targeted approach without additional products.
Technology and Features
The COOBST incorporates advanced vibration technology that delivers up to 48,000 vibrations per minute, achieving deep cleaning in just 60 seconds. It also features three LED modes for additional oral care functionality. The Martenit toothbrush, while also utilizing high-frequency sound vibrations, focuses on a 30-second automatic timer for cleaning, promoting effective use within a set time. Both toothbrushes employ modern technology to enhance cleaning efficiency, but the COOBST appears to offer a faster and potentially more effective cleaning solution.
Waterproofing and Durability
The COOBST is certified IPX7 waterproof, ensuring it can be safely used in the shower and makes cleaning after use easy. Its robust build protects internal components from water damage, adding to its longevity. The Martenit toothbrush is described as having excellent water resistance, made from food-grade silicone, which allows for washing and reuse. Both toothbrushes offer good waterproofing, but the COOBST's higher IPX7 rating suggests a stronger resistance against water damage.
Charging and Battery Life
The COOBST toothbrush does not specify its charging method or battery life, which could be a consideration for potential users. Conversely, the Martenit model utilizes a wireless charging base that requires only three hours of charging for a week's worth of use. This feature adds convenience, especially for those who travel frequently. Thus, while the COOBST may excel in cleaning capabilities, the Martenit provides a modern charging solution that may appeal to users seeking ease of use.
Price Comparison
With the COOBST priced at $21.99 and the Martenit at $31.99, the COOBST offers significant savings, coming in at about $10 less. This price difference of approximately 31% could make the COOBST a more attractive option for budget-conscious buyers. Despite the price disparity, both products target similar markets and offer a range of features to enhance oral care.
Which should you buy?
Choosing between the COOBST U-Shaped Electric Toothbrush and the Martenit Ultrasonic Toothbrush ultimately depends on your specific needs. If you're looking for comprehensive cleaning modes, a faster cleaning process, and a lower price, the COOBST is a compelling choice. However, if you value modern features like wireless charging and a focus on personalized dental care with a built-in timer, the Martenit may be worth the higher investment. Both toothbrushes have their strengths, but the COOBST stands out as the more budget-friendly option with robust cleaning capabilities.

