What is SAR and the difference in testing standards like 1.6 W/kg and 2.0 W/kg?
SAR stands for “specific absorbtion rate” basically the amount of radiation a human body will absorb from a cell phone. The lower the rate the less radiation will be absorbed. There are basically 2 different standards which are; North American Standard. The SAR limit for mobile phones used by the public is 1.6 watts/kilogram (W/kg) averaged over one gram of body tissue. European Standard. The SAR limit for mobile phones used by the public is 2.0 watts/kilogram (W/kg) averaged over ten grams of body tissue. In order to compare relative radiation of different mobile phones, you can only compare phones using the same standard of measurement.