Question: what is the difference between head sar and body sar?
Answer: When you hold or carry a mobile device close to your head and body, you can absorb over half of the transmitted RF energy. Cell phone radiation level varies from device to device and is measured by the Specific Absorption Rate (SAR). ... For example, the iPhone 6 has a Body SAR of 1.14 W/kg and Head SAR of 1.08 W/kg.