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Posted by on May 12, 2013 in Android Mobile, Blackberry, Blackberry, iPhone, Mobiles, Windows Phone, Z_Featured | 0 comments

Radiation(SAR) showdown – Q2 2013 which top smartphone might burn your brain

Radiation Showdown Q2 2013

Radiation Showdown Q2 2013

DISCLAIMER : There is no clear proof stating radiation from mobile causes health implications, neither there is any conclusive proof to state mobile radiation does not cause any health hazards. Major governments have chosen a precautionary approach to this issue by enforcing SAR (Specific Absorption Rate) limitation for mobile devices to be sold in market. This article (or) title should not be taken in a suggestive manner. The actions made from the information provided in the article are your own and the website does not take any responsibility for the consequences. This article does not recommend any manufacturer or device neither does it disregard any manufacturer/device.

SPECIFIC ABSORPTION RATE (SAR) : A SAR value is a measure of the maximum energy absorbed by a unit of mass of exposed tissue of a person using a mobile phone, over a given time or more simply the power absorbed per unit mass. SAR values are usually expressed in units of watts per kilogram (W/kg) in either 1g or 10g of tissue. Read what FCC has to say about SAR from the link below. http://www.fcc.gov/guides/specific-absorption-rate-sar-cell-phones-what-it-means-you
EXPOSURE LIMITS In Europe, the European Council Recommendation 519/1999/EC for exposure guidelines has adopted the recommendations made by the International Commission on Non-Ionising Radiation Protection (ICNIRP Guidelines 1998). In the US, the FCC, Federal Communications Commission, sets the radio frequency safety guidelines that all phones must meet before being sold in the US. Current reference standards and limits (status January 2001).
Region / Country- Reference to - SAR measuremant protocolReference to SAR limitLimit
EuropeEuropean Specification ES 59005 (1998)ICNIRP Guidelines 1998 (ICNIRP 1998)2.0 W/Kg in 10g of tissue
AustraliaAustralian Communications Authority (ACA) Standard (ACA RS 1999)Australian Standard AS/NZS 2772.11.6 W/Kg in 1g of tissue
US Australian Standard AS/NZS 2772.1 1.6 W/Kg in 1g of tissue US Federal Communications Commission (FCC) Guidelines (FCC 1997)American Standard ANSI C95.1 (ANSI 1992)1.6 W/Kg in 1g of tissue

Radiation(SAR) showdown – Q2 2013 which top smartphone might burn your brain

Major smartphones from top manufacturers are contending for the radiation showdown for this quarter. For the sake of clarity we are using SAR ratings from FCC as it has least threshold and serves the purpose of this article.

Radiation showdown for this quarter includes top selling smartphones from major platforms of different manufactures like Apple iPhone5, Samsung Galaxy S4, HTC One, Sony Xperia Z, Nokia Lumia 920 and Blackberry Z10. SAR rating from the FCC of the International versions of these smartphones are taken and compared below. Scroll horizontally within the table.

SAR comparision between leading smartphones of Q2 2013

SAR US
Apple iPhone 5
(GSM 1900)

Samsung Galaxy S4

HTC One

Sony Xperia Z

Nokia Lumia 920

Black Berry Z10
Head W/kg1.18GTI9505
0.50
L720(For Sprint)
0.52
I337(For AT&T)
0.61
I545(For Verizon)
0.25
M919(For T-Mobile)
0.70
R970(For US Cellular)
0.36
1.26
(64GB)
1.16
(For Sprint)
1.05
(0280)
0.52
(0270)
0.72
(RM-820)
1.08
(RM-821)
1.12
(RFH121LW)
1.07
(Clipped on Belt)
1.07
Body W/kg1.18GTI9505
0.65
L720(For Sprint)
1.10
I337(For AT&T)
0.77
I545(For Verizon)
1.03
S4 M919(For T-Mobile)
0.79
R970(For US Cellular)
0.61
0.69
(64GB)
0.72
(For Sprint)
0.76
(0280)
0.62
(0270)
0.65
(RM-820)
0.91
(RM-821)
0.68
(RFH121LW)
0.87
(Clipped on Belt)
0.99
FCC SAR ReportFCC
Apple
I9505(FCC)
L720(FCC)
I337(FCC)
I545(FCC)
M919(FCC)
R970(FCC)
FCC
64GB(FCC)
For Sprint(FCC)
0280(FCC)
0270(FCC)
NOKIA/FCCFCC
Blackberry
Specific Absorption Rate(SAR) comparison of major smartphones of Q2 2013, Lower is better. ©indiandragon.in

 

Analysing the data from the above table we find that all the smartphones have their SAR ratings well within the specified range of FCC, still SAR ratings of  these smartphones vary with one another. According to the SAR specification – lower is better. Apple iPhone 5 seem to have the highest SAR rating and tend towards the upper  threshold specified by the FCC. Nokia Lumia 920 is very close to iPhone 5. HTC One and BB Z10 fall closely behind Lumia 920. The least SAR is projected by international version of Samsung Galaxy S4 and Sony Xperia Z.

SAR Ratings depends upon the material used and hardware inside the smartphone. Seems Samsung and Sony have chosen materials which reduces the SAR of their devices over their counterparts. Now you have a reason for not to complain plasticky body of the sammy !

As said above, SAR is just a precautionary measure and there’s no conclusive proof stating the mobiles with higher SAR would cause health implications nor there is any to prove otherwise. But if you are very conscious about your health and envisage preventive care, then you should probably buy  smartphones with lesser SAR rating. The above table would be useful for you to decide upon smartphones with less SAR. So according to our study, the winners of Radiation showdown for Q2 2013 are – Samsung Galaxy s4 and Sony Xperia Z.

This article has been prepared with intense study on the subject. Still if you find any discrepancy with it , feel free to point it out.
You can ask your queries in the comments, facebook, twitter or through my google plus page.

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Indiandragon though Developer, Hacker and Researcher by profession, he aslo writes on Movies, Sports and Entertainment in News@Indiandragon. He specialises in Technology, Defence and Information Security.