The best way to protect your smartphone is using a Sony Xperia 1 IV protective glass . really good bid from DUX Ducis , which is optimized to protect the screen and is made in solid quality. This case is in a hardness of 9H (9 times harder than regular glass)

Features at this tempered glass for Sony Xperia 1 IV :

• Excellent protection against scratches and flanges .
• Protects the screen from accidental blows and loss of phone.
• Case friendly, can be used with a case
• Super thin tempered glass on just 0.3 mm
• good quality .
• Secure 'Anti-Explosion' function - The protective glass will never be split and be dangerous.
• Cleaning kit for the screen before mounting included.

You strongly minimize the risk of coming scratches and flanges in the screen when using this Sony Xperia 1 IV hardened glass , which is produced in a Good quality.