Is screen guard or so called tempered glass cover a must

Hello arvind0174,

We're glad to see that you've discovered the Related Article Find answers and ask questions, and we're happy to help answer your question about whether a screen protector is necessary.

A screen protector can help prevent visual damage to help keep your iPhone looking like new. Some protectors also help preserve the Multi-Touch display's functionality, while others provide protection against glare. To learn more or see if a screen protector is available for your device model, check out Apple's website:

Apple Accessories

For other pre-sales questions, we recommend that you contact Apple Support directly. Depending on your region, you may be able to reach them here: 

Contacting Apple

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arvind0174,

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Have a great day.