What is head SAR and body SAR?
The SAR (Specific Absorption Rate) gives an indication of how much electromagnetic radiation emanates from a mobile phone and is measured in watts per kilogram (W/kg).
For example; testing in the head is tested using a ‘phantom’ head and the SAR in the body is tested using a ‘phantom’ torso..
Is SAR value of 1.5 Dangerous?
Lower is better, although as noted earlier FCC in the US considers SAR level of 1.6W/kg good enough. So don’t worry if your phone has a SAR value of 1.2 or something like that even though most phones are nowadays in the range of 0.5 to 0.6.
Which SAR value is safe for head and body?
A mobile device’s SAR rating must not exceed 1.6 W/kg in order to receive FCC certification and be sold in the United States. SAR is measured for placement of the phone next to the head and on the body. For example, the iPhone 6 has a Body SAR of 1.14 W/kg and Head SAR of 1.08 W/kg.
How can reduce SAR?
With that said, there are a few helpful things you can do to reduce the SAR value of your mobile phone right now.Reduce SAR value by using earphone. … Lower SAR value by using speakerphone. … Use your phone as short as possible. … Use special materia headphone. … Avoiding use phone while its signal is weak.
What does SAR mean?
SARAcronymDefinitionSARSpecific Absorption Rate (measure of the rate of absorption of RF energy in the body)SARSearch And RescueSARSons of the American RevolutionSARStudent Aid Report166 more rows
Which SAR value is safe?
1.6 watts per kilogramAny cell phone at or below these SAR levels (that is, any phone legally sold in the U.S.) is a “safe” phone, as measured by these standards. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg).
How is SAR calculated?
Specific Absorption Rate (SAR) is a measure of the rate at which energy is absorbed per unit mass by a human body when exposed to a radio frequency (RF) electromagnetic field. … It is defined as the power absorbed per mass of tissue and has units of watts per kilogram (W/kg).
Which Mobile has highest SAR value?
The Xiaomi Mi A1 with 1.75 W/kg SAR value is found to be emitting the highest amount of radiation followed by the OnePlus 5T which has 1.68 W/kg SAR value. The Xiaomi Mi Max 3 and the OnePlus 6T take the third and fourth spot with 1.58 W/kg and 1.55 W/kg, respectively.
How does SAR affect the body?
SAR values increase as the conductivities of human body tissues increase and usually decrease as the increase of relative permittivities of human body tissues increase. The effect of the dielectric values of human body on SAR is orientation, human body and frequency dependent.