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What is SAR? And how to be safe?

SAR stands for Specific Absorption Rate. All mobile phones radiate Radio Frequency Electromagnetic field. In simple language, SAR is rate at which radiation emitted by phones is absorbed by the human body. It's expressed in W/kg.





The SAR limit in India is 1.6W/kg. If a phones exceeds the limit, it is really harmful for human body.

How to check your phone's SAR value?

Generally the SAR is printed on the box of the phone. Plus, you can check it by dialing the USSD code *#07#
A message will be displayed with the SAR value of your phone.



See the last line in the image. It says that my SAR is .442W/kg. It is below 1.6W/kg (safe).

How to be safe if your phone's SAR is high?

Suppose your phone's SAR is 0.6W/kg. It means it is 0.6W/kg (maximum), when your Wi-Fi, bluetooth and all radio signals are ON. So, use WiFi, bluetooth, GPS only when you need them.

If you are playing games or listening to music, and not want to receive calls during that time, turn on Flight mode. It will turn off all radio connections.

Whenever you're on call for long periods, switch to headset. And while calling someone, keep the phone away from your ear till the call gets connected. The radiation is higher when the call tries to connect.

Always try to keep your phone away from body. And keep it some feet away while sleeping. Avoid keeping it near your head or under the pillow.

And don't use the phone for a long time. Change the phone after a year.

Chinese phones have higher SAR because of which they don't mention the value. Always the check SAR online before buying the handset.

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