CHI Tourmaline Ceramic Series Flat Iron, Hair vs SUNMAY Cordless Hair Straightener, 0.
Updated August 2026 — CHI Tourmaline Ceramic Series Flat Iron, Hair wins on durability and technology, SUNMAY Cordless Hair Straightener, 0. wins on portability and heat up time.
The CHI Tourmaline Ceramic Flat Iron excels in professional performance, while the SUNMAY Cordless Straightener offers great portability. Choose based on your styling needs.
Why CHI Tourmaline Ceramic Series Flat Iron, Hair is better
Heat Performance
Higher maximum temperature of 392°F
Versatility
More styling options available
Brand Reputation
CHI is known for professional-grade tools
Why SUNMAY Cordless Hair Straightener, 0. is better
Portability
Cordless design for travel
Weight
Lighter at 0.5 lbs
Quick Heat-Up
Heats up in 20 seconds
Overall score
Specifications
| Spec | CHI Tourmaline Ceramic Series Flat Iron, Hair | SUNMAY Cordless Hair Straightener, 0. |
|---|---|---|
| Price | $50.00 | $44.98 |
| Sales Rank | 12717 | 13219 |
| Heating Type | Corded | Cordless |
| Material | Ceramic | Titanium |
| Usage Time | Unlimited | 20-30 mins |
Dimension comparison
Overview of the CHI Tourmaline Ceramic Series Flat Iron
The CHI Tourmaline Ceramic Series Flat Iron is a professional-grade hair straightener designed for achieving silky, smooth hair. Priced at $50.00, it features a maximum temperature of 392°F, making it suitable for various hair types. This flat iron is ranked 12,717 in sales, indicating its popularity among consumers. The innovative Tourmaline Ceramic technology not only ensures even heat distribution but also produces negative ions that help reduce static, leaving hair shiny and manageable.
Overview of the SUNMAY Cordless Hair Straightener
The SUNMAY Cordless Hair Straightener offers a cordless design, making it an ideal choice for travel and on-the-go styling. Priced at $44.98, it's about 10% cheaper than the CHI flat iron. This portable straightener features a unique dual voltage design compatible with power sources worldwide, making it a convenient option for travelers. With a sales rank of 13,219, it appeals to users looking for versatility, as it functions as both a straightener and a curler.
Design and Portability
The CHI Tourmaline Ceramic Flat Iron measures 12.375” in length and weighs 1.4 pounds, designed for professional use with a 6.5ft swivel cord for easy handling. In contrast, the SUNMAY Cordless Hair Straightener weighs only 0.5 pounds and features a compact size of 0.85 inches, making it extremely portable. This design allows it to fit easily into a lady's carry bag, perfect for quick styling while traveling. The inclusion of a heat-resistant travel pouch with the SUNMAY straightener adds further convenience for users on the go.
Heating Performance
The CHI flat iron heats up quickly in just 30 seconds, reaching its maximum temperature of 392°F, which is excellent for efficient styling. The SUNMAY straightener excels in this area with a rapid heating time of just 20 seconds to reach 165°C (about 329°F), and it can go up to 205°C (about 401°F) in just 30 seconds. This rapid heating capability allows users to start styling swiftly, making it a practical choice for those with a busy lifestyle.
Styling Versatility
Both the CHI and SUNMAY straighteners offer versatility in styling. The CHI Tourmaline Ceramic Flat Iron is designed to straighten, smooth, curl, wave, spiral, flip, and bend hair, making it suitable for a wide range of styles. The SUNMAY straightener also provides 2-in-1 functionality, allowing users to achieve straight and curly looks. While both products cater to diverse styling needs, the CHI flat iron's broader temperature range and professional design may appeal more to those looking for high-end styling capabilities.
Battery Life and Usage Time
Battery life is a critical factor for cordless devices, and the SUNMAY straightener shines in this department. It features a built-in 5000mAh rechargeable battery that allows for 20 to 30 minutes of continuous use, making it sufficient for quick touch-ups. However, it's essential to note that the heating will automatically stop during charging, which could limit its use during longer sessions. The CHI flat iron, being corded, does not have such limitations, providing uninterrupted styling as long as it's plugged in.
Price Comparison
Priced at $50.00, the CHI Tourmaline Ceramic Flat Iron is slightly more expensive than the SUNMAY Cordless Hair Straightener, which retails for $44.98. This price difference of about $5.02 (roughly 10%) may influence buyers who are budget-conscious. However, the CHI flat iron may justify its higher price with its professional-grade performance and advanced technology, while the SUNMAY straightener offers great value for those needing portability and quick styling.
Which should you buy?
Choosing between the CHI Tourmaline Ceramic Series Flat Iron and the SUNMAY Cordless Hair Straightener largely depends on your styling needs and lifestyle. If you're looking for a professional-grade tool with excellent heat performance and versatility, the CHI flat iron is a solid choice. However, if portability and quick styling on the go are your priorities, the SUNMAY straightener, with its cordless design and 20-second heat-up time, will better suit your needs. Ultimately, both products offer unique advantages, making them excellent options in the hair straightener market.

