SUNMAY Cordless Hair Straightener, 0. vs Voloom Rootie 3/4” Inch Professional Volumizing
Updated August 2026 — SUNMAY Cordless Hair Straightener, 0. wins on portability and battery life, Voloom Rootie 3/4” Inch Professional Volumizing wins on volume effect and temperature cont.
The SUNMAY Cordless Hair Straightener offers better portability and versatility at a lower price, while the Voloom Rootie specializes in volumizing thin hair. Overall, the SUNMAY is the better choice for most users.
Why SUNMAY Cordless Hair Straightener, 0. is better
Price
SUNMAY is $44.98, significantly cheaper than Voloom at $149.99.
Portability
SUNMAY is cordless and lightweight, ideal for travel.
Versatility
SUNMAY can straighten and curl hair, offering more styling options.
Why Voloom Rootie 3/4” Inch Professional Volumizing is better
Volume
Voloom is specifically designed to create lasting volume for thin hair.
Temperature Control
Voloom has adjustable temperature settings for different hair types.
Hair Health
Voloom promotes chemical-free styling, reducing product use.
Overall score
Specifications
| Spec | SUNMAY Cordless Hair Straightener, 0. | Voloom Rootie 3/4” Inch Professional Volumizing |
|---|---|---|
| Heating Time | 20s | N/A |
| Battery Life | 20-30 mins | N/A |
| Temperature Range | 165-205°C | 220-395°F |
| Functionality | 2-in-1 | Volumizing |
| Plate Material | Titanium | Ceramic |
Dimension comparison
Overview of the SUNMAY Cordless Hair Straightener and Voloom Rootie
The SUNMAY Cordless Hair Straightener is priced at $44.98, while the Voloom Rootie is significantly higher at $149.99. This makes the SUNMAY about 70% cheaper than the Voloom, appealing to budget-conscious consumers seeking effective hair styling tools. However, these products cater to different styling needs, which is essential to consider when making a choice.
Design and Portability
The SUNMAY Cordless Hair Straightener boasts a lightweight design at only 0.5 lbs and features a compact size of 0.85 inches, making it ideal for travel and on-the-go styling. The fact that it is cordless adds to its portability, allowing users to style their hair anywhere without being tethered to a power outlet. In contrast, the Voloom Rootie, while not cordless, is designed specifically for creating volume in thin or very thin hair. Its ¾-inch wide plates are optimized for shorter hair, ensuring users achieve a fuller look without needing extensive styling sessions.
Heating Performance
In terms of heating performance, the SUNMAY straightener heats up remarkably fast, reaching 165°C in just 20 seconds and 205°C in 30 seconds. This rapid heating capability is perfect for those who need quick styling solutions. On the other hand, the Voloom Rootie offers adjustable temperature settings ranging from 220°F to 395°F, allowing users to tailor the heat to their specific hair type. This feature can be particularly beneficial in preventing damage to delicate hair, but it does not match the SUNMAY’s quick heat-up time.
Battery and Usage Time
The SUNMAY Cordless Hair Straightener features a built-in 5000mAh battery, providing 20 to 30 minutes of usage on a single charge. This is a convenient option for quick touch-ups, especially while traveling. However, users should be aware that the heating will stop while charging, which could be a downside for some. In contrast, the Voloom Rootie does not rely on battery power, making it perpetually ready for use as long as it is plugged in. This could be a more reliable option for users who prefer continuous styling without the need to recharge.
Styling Versatility
The SUNMAY Cordless Hair Straightener is a versatile 2-in-1 tool that can straighten and curl hair, catering to various styling preferences. Its ability to create different styles makes it a flexible choice for users who like to change their looks frequently. The Voloom Rootie, however, focuses on volumizing short or fine hair. Its patented plate technology creates volume pockets that lift hair from the roots, which is excellent for users specifically looking to enhance the fullness of their hairstyles. Thus, while both tools serve different purposes, the SUNMAY offers broader styling options.
Hair Health Considerations
Both styling tools emphasize hair health in their designs. The SUNMAY features upgraded titanium alloy floating plates that reduce hair-to-plate friction by 50%, minimizing damage during styling. This is crucial for maintaining healthy hair, especially for frequent users. The Voloom Rootie promotes chemical-free hair care by eliminating the need for heavy styling products, which can weigh hair down. Instead, it allows users to achieve volume without additional products, which can contribute to healthier hair over time.
User Experience and Bestseller Rankings
The SUNMAY Cordless Hair Straightener holds a sales rank of 13,219, indicating a reasonable popularity among consumers who appreciate its portability and dual functionality. Conversely, the Voloom Rootie has a better sales rank of 7,918, suggesting that it is particularly favored by those with thin hair seeking lasting volume. This difference in ranking may reflect the distinct target markets of each product—travelers and those needing quick styling versus individuals looking specifically for volumizing solutions.
Which should you buy?
Choosing between the SUNMAY Cordless Hair Straightener and the Voloom Rootie ultimately depends on your specific hair needs and styling preferences. The SUNMAY is an excellent option if you prioritize portability, quick heating, and versatile styling capabilities at a significantly lower price of $44.98. However, if you have thin or very fine hair and are specifically looking for a tool that provides lasting volume, the Voloom Rootie, priced at $149.99, may justify the investment. Consider your hair type, styling habits, and the importance of portability when making your decision.

