What is SAR?
Specific Absorption Rate (SAR) measures the rate of RF (radio-frequency) energy emitted by a source (such as mobile devices) and absorbed by the human body.
In other words, the SAR level indicates the amount of radiation your head and body are exposed to when using your phone.
For instance, if the phone you’re interested in has the following ratings:
SAR (head) 0.099 W/kg (GSM1800)
SAR (body – worn) 0.301 W/kg (GSM900)
This means your head’s radiation absorption is 0.099 W/kg and body radiation