For the body the SAR is a little different, usually a bit lower.īullGuard protects your mobile devices from spies and viruses TRY NOW FOR FREE - 90 DAYS Top 10 High SAR rate phones The SAR rated phones listed below are specific to the ear/head. Because European criteria are higher approximate calculations using the European standard would place the SAR value lower than the US equivalent. The SAR values listed below are based on the US Federal Communications Community guidelines. As such higher SAR is correlated with higher potential damage but it is not a measure of the damage, that is, it doesn’t quantify the biological effect on the body of radiofrequency. The SAR is a measure of the energy deposition in radiofrequency the higher the SAR the more radiofrequency energy.
A robotic probe takes a series of measurements of the electric field at specific locations in a precise, grid-like pattern within the dummy head and torso.
Each phone is tested while running at full power in all the frequency bands in which it operates, and in different positions against the dummy’s head and body.Testing takes place using models of the head and body that are filled with liquids to simulate the radio frequency absorption characteristics of different human tissues.But before we get there it might be useful to understand how SAR levels are calculated: To give you some sense of mobile phones that have a relatively low SAR we’ve trawled the internet to compose a list. But that said the lower the SAR value, the better How SAR levels are calculated As such the SAR value limits ensure that a phone does not exceed maximum permissible exposure levels. You may be talking on your phone and absorbing radiation while your body is also absorbing the radiofrequency but at a different rate.
It’s also important to note that while SAR values are an important tool in judging the maximum possible exposure to radiofrequency energy (radiation) from a mobile a single SAR value does not provide measure the total amount of radiation. For instance the SAR rate for the ear will likely be higher than that of the body. These figures are the amount of radiation absorbed by the body and they do differ according to the body parts affected. In Europe the limit is higher and set at 2.00 watts/kilogram averaged over 10 grams/tissue. For instance, the US Federal Communications Community limits radio frequency exposure to a SAR value of 1.60 watts/kilogram over 1 gram/tissue. Various regulatory bodies have set ‘safe’ limits for SAR measurements. But it’s an issue that is still live and many phone manufacturers publish specific absorption rates (SAR) to let customer’s know the levels of radiation emitted from their phones. Despite a mass of research into the effects, the evidence is largely inconclusive. We recently ran a blog on mobile phones emitting radiation. This makes it easy to see which the lowest emitters are and which are the highest. All mobile phone manufacturers have to publish measurements that reveal the level of radiation. Have you got a thing about radiation from mobile phones? If so, you’re not alone.