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Mobile radiation: Phones with low and high SAR

Last updated on: June 10, 2011 18:53 IST

Mobile radiation: Phones with low and high SAR

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Get Ahead reader Rohit Sane lists out mobile phones with low and high specific absorption rate (SAR) values in response to our reader invite (bleow) and also offers tips on how you can protect yourself from radiations. Usually, phones with low SAR are considered good to use as they emit less radiations compared to phones with high SAR values.

Rohit studies information technology at Atharva Institute of Information Technology and runs his own web site www.techfreakstuff.com.

Life without mobile phones is not very happening. Mobiles have become a necessity! But, in spite of all that, a recent study by the World health Organisation suggests that mobile phones can be injurious to the health of the person using it.

There has been research that has concluded that the radiations from cell phones can possibly be carcinogenic, while some others prove that they are not carcinogenic at all. Some prove that heavy usage of mobile phones can lead to brain tumours while some assert that they affect (reduce) the sperm count in males.

To make a point, all the reports prove that mobile phone usage affect the human tissues for sure! Now the magnitude of the effect may be different in different cases as per the usage.

Reader invite

Are you a gadget/gaming wizard? Would you like to write on gadgets, gaming, the Internet, software technologies, OSs and the works for us? Send us a sample of your writing to gadgetsandgaming@rediffmail.com with the subject as 'I'm a tech wizard' and we will get in touch with you.


Photographs: Pichi Chuang / Reuters
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Mobile radiation: Phones with low and high SAR

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How can usage of mobile phones affect us? And why?

Mobile phones use electromagnetic tadiation (radio frequency (RF) waves) to make and receive calls and data. These radiations can he harmful to our body if it is exposed to it in large amounts.

Even in small amounts, these radiations are absorbed by human body which is the main cause of concern amongst researchers. The rate of radiation absorbed by the body when exposed to radiation is determined by the Specific Absorption Rate (SAR). It is measured in watts per kilogram (W/kg).

The higher the SAR value, more is the radiation absorbed in the body.

According to rules, highest level of SAR is allowed in Europe, which is 2 W/kg.

In USA, Canada, India and most of the other countries, the permitted value of SAR is 1.6 W/kg. Mobile phones having SAR values above these are legally not allowed on sale in these countries.



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Mobile radiation: Phones with low and high SAR

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Phones with low SAR:

LG Optimus 2X

SAR value: 0.545


Image: LG Optimus 2X

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Mobile radiation: Phones with low and high SAR

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Samsung Nexus S

SAR value: 0.58


Image: Samsung Nexus

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Mobile radiation: Phones with low and high SAR

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Huawei Ideos X5

SAR value: 0.34


Image: Huawei Ideos X5

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Mobile radiation: Phones with low and high SAR

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Sony Ericsson Xperia Arc

SAR value: 0.66


Image: Sony Ericsson Xperia Arc

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Mobile radiation: Phones with low and high SAR

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LG Quantum

SAR value: 0.35


Image: LG Quantum

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Mobile radiation: Phones with low and high SAR

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Nokia E5

SAR value: 0.88


Image: Nokia E5

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Mobile radiation: Phones with low and high SAR

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Samsung I9000 Galaxy S

SAR value: 0.24


Image: Samsung I9000 Galaxy S

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Mobile radiation: Phones with low and high SAR

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HTC Desire S

SAR value: 0.35


Image: HTC Desire S

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Mobile radiation: Phones with low and high SAR

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Sony Ericsson Xperia PLAY

SAR value: 0.36


Image: Sony Ericsson Xperia PLAY

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Mobile radiation: Phones with low and high SAR

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Samsung Infuse 4G

SAR value: 0.2


Image: Samsung Infuse 4G

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Mobile radiation: Phones with low and high SAR

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Mobile phones with relatively high SAR values but still within the range acceptable in US, Canada and India:

Motorola Droid 2 Global

SAR value: 1.58


Image: Motorola Droid 2 Global

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Mobile radiation: Phones with low and high SAR

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Sony Ericsson Xperia X10 Mini Pro

SAR value: 1.55


Image: Sony Ericsson Xperia X10 Mini Pro

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Mobile radiation: Phones with low and high SAR

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Motorola Defy

SAR value: 1.52


Image: Motorola Defy

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Mobile radiation: Phones with low and high SAR

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HTC Desire

SAR value: 1.48


Image: HTC Desire

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Mobile radiation: Phones with low and high SAR

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Motorola Droid X

SAR value: 1.43


Image: Motorola Droid X

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Mobile radiation: Phones with low and high SAR

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Nokia C5

SAR value: 1.34


Image: Nokia C5

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Mobile radiation: Phones with low and high SAR

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Nokia E72

SAR value: 1.31


Image: Nokia E72

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Mobile radiation: Phones with low and high SAR

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BlackBerry Bold 9700

SAR value: 1.36


Image: BlackBerry Bold 9700 1.36

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Mobile radiation: Phones with low and high SAR

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Motorola Atrix 4G

SAR value: 1.47

iPhone 4 and Nokia N8 rank in the middle of this SAR scale with 1.17 and 1.02 W/kg respectively.


Image: Motorola Atrix 4G

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Mobile radiation: Phones with low and high SAR

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How to protect yourself from mobile phone radiation?

It has been proved that keeping the phone very close to the body affects the tissues near it. So it is recommended that one keep the phone at a distance when not in use.

Also, use the loudspeaker option when you don't need to talk anything private. Always keeping the phone near your ears may cause problems for the ears as well as your brain.

If you plan to have long calls, then use the headset, as it reduces the radiation reaching your ears and brains by a considerable amount.

To conclude, avoid talking on the mobile phone when not essential!

Photographs: Jorge Silva / Reuters
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