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Pong Research makes cases that it says reduces radiation levels for iPhones and Blackberrys.(Credit:Pong Research)
Updated November 30
We do a lot of top products lists here at CNET and manufacturers are usually pretty excited to see their products on those lists. But this is one "top" list that manufacturers probably aren't too thrilled to find their products on.
As we note in our intro to the list, for a phone to pass FCC certification and be sold in the United States, its maximum SAR level must be less than 1.6 watts per kilogram. In Europe, the level is capped at 2 watts per kilogram, whereas Canada allows a maximum of 1.6 watts per kilogram. The SAR level listed in our charts represents the highest SAR level measured with the phone next to the ear as tested by the FCC. It's possible for the SAR level to vary among different transmission bands (the same phone can use multiple bands during a call), and different testing bodies can obtain different results.
I should also add our usual disclaimer when discussing cell phone radiation levels. As editor Nicole Lee says, we are in no way implying that cell phone use is harmful to your health by publishing this list. Research abounds, but much of the literature is contradictory. Though some researchers have said there is cause to be "concerned," others disagree and say it is still too early to be alarmed. Similarly, though some tests have suggested a link between long-term (10 years or longer) cell phone use and cancer, there still is not conclusive or demonstrated evidence that cell phones cause or don't cause adverse health effects in humans. In short, the jury is still out. Research into the matter will continue, and we will continue to monitor its results. (For a more complete list of SAR ratings for various phones, check out our full Quick Guide to cell phone radiation levels.)
Click on any image to begin the slideshow. Models are listed from lowest to highest SAR rating, with the last phone on the list at No. 1.See also: 20 lowest-radiation U.S. cell phones.
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