Tempered glass has become essential for smartphone protection. However, the market offers various types, including 2D, 3D, 9H, and 11D, leading to confusion among users regarding the best choice. Each tempered glass type has its unique features and strengths.
2D Tempered Glass: Basic Protection
2D tempered glass is the most basic and affordable option. It covers only the flat part of the screen, leaving the edges exposed. While suitable for phones with flat displays, it’s less effective for curved screen phones, as it tends to come off easily and doesn’t provide edge protection.
3D Tempered Glass: Better for Curved Displays
3D tempered glass is better suited for curved displays because its edges are slightly curved. It covers the edges of the phone’s screen, providing more protection. It’s designed specifically for smartphones with curved screens. It fits smoothly and gives the phone a premium look.
11D Tempered Glass: Advanced Protection
11D tempered glass is considered more advanced than 2D or 3D. In reality, terms like 4D, 5D, 9D, or 11D are used to mislead customers and create a perception of higher quality. The public has started to associate the “D” with hardness, believing that a higher “D” means a stronger tempered glass. Taking advantage of this, companies have created a marketing gimmick, selling glasses with names ranging from 4D, 5D, 9D to 11D.
The reality is that dimensions are limited to only 3. Tempered glass sold as 11D is actually a 2.5D glass. It’s important to note that the real strength of tempered glass is measured by “H”, such as 9H hardness.
“9H” indicates the hardness rating, meaning it provides significant protection against scratches and impacts. Everyday scratches from items like keys or coins usually don’t damage the screen.
Which Tempered Glass to Buy?
If you have a phone with a flat screen, 2D or 9H tempered glass is sufficient. For curved displays, 3D or 11D are better options. For those seeking strength and longevity, a slightly more expensive tempered glass might be suitable. It doesn’t affect touch sensitivity and helps control phone heat.