Smartphone has so much penetrated in our daily life that now no one can think of without it. Excessive use of smartphone may cause health problems but if you are even using less a smartphone with bad SAR, that is most dangerous.
Here SAR stands for Specific Absorption Rate which is a measure of the amount of radio frequency energy absorbed by the body when using a mobile phone. Federal Communications Commission (FCC) has adopted limits for safe exposure to radio frequency (RF) energy which is 1.6 watts per kilogram (1.6 W/kg). Any smartphone at or below this SAR levels is “safe” to use.
You can check Radiation level in terms of SAR of your smartphone by dialing a USSD code *#07#, if results shows SAR below 1.6 watts per kilogram (1.6 W/kg) then it is OK otherwise you are advised to change your smartphone immediately.
Here are SAR level of some popular smartphones in the market.
- iPhone 6:>> 1.59 W/kg
- LG G3:>> 0.99 W/kg
- LG G2:>> 1.44 W/kg
- Samsung Galaxy Note 2:>> 0.42 W/kg
- Samsung Galaxy Note 3:>> 1.07 W/kg
- Samsung Galaxy Note 4:>> 1.20 W/kg
- Samsung Galaxy S5:>> 1.28 W/kg
- HTC One (M8):>> 1.29 W/kg
Interestingly iPhone 6 have just 0.01 below the threshold level of SAR.
In addition to radiation level you must know about following important USSD codes to get more information of your smartphone.
*#*#4636#*#* : It gives a lot of information of smartphone under following four categories.
- Phone Information : It shows IMEI, Signal strength etc
- Battery Information: It shows battery status, level, health, voltage, temperature, technology and time since boot.
- Usage statistics: it shows how may times and how much time every app on your smartphone you have used. Interestingly WhatsApp is on top of the list on my smartphone. Am I using WhatsApp the most !!
- Wi-Fi information: It shows Wi-Fi API, config and status
*#06# : It shows the IMEI number of your phone which is a 15 digit unique number for your phone, basically it is Social Security number of your phone. Sometimes when typing in *#06# it will add an additional 2 digits at the end. The first 15 digits shown before any space or dash is your IMEI. Note down IMEI number of your phone in your diary, it is very useful when your phone got stolen.
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