If you are concerned about the potential health risks associated with using a mobile phone, you may have come across the term “SAR value.” SAR stands for Specific Absorption Rate and refers to the rate at which the human body absorbs electromagnetic energy. The higher the SAR value, the more energy is absorbed by the body. So, what exactly is the SAR value of iPhone 7?
The SAR Value of iPhone 7
**The SAR value of iPhone 7 varies depending on the model. For the iPhone 7, the SAR values are as follows:**
– **Head SAR value: 1.38 W/kg**
– **Body SAR value: 1.34 W/kg**
It’s important to note that these SAR values are measured at the highest power level in laboratory conditions. In real-world usage scenarios, the SAR value may vary depending on factors such as network strength and distance from the cell tower.
Understanding SAR Values
SAR values are regulated by governmental bodies to ensure that mobile devices comply with safety guidelines. In the United States, the Federal Communications Commission (FCC) sets the maximum SAR limit for mobile devices.
According to the FCC guidelines, the maximum SAR value allowed for an iPhone is 1.6 W/kg over 1 gram of tissue. The iPhone 7’s SAR values are well below this limit, making it safe for use.
Addressing Related FAQs
1. What exactly is SAR?
SAR stands for Specific Absorption Rate and measures the rate at which the human body absorbs electromagnetic energy emitted by mobile devices.
2. Are lower SAR values better?
Yes, lower SAR values indicate that the body absorbs less electromagnetic energy from the device, which is generally considered safer.
3. How are SAR values measured?
SAR values are measured in a laboratory under controlled conditions using a dummy head or body filled with a liquid that simulates human tissue. The energy absorption rate is calculated based on the heating of this liquid.
4. Are there SAR limits set by regulatory bodies?
Yes, regulatory bodies like the FCC in the United States set maximum SAR limits for mobile devices, ensuring their compliance with safety guidelines.
5. Can SAR values vary between models of the same phone?
Yes, SAR values can vary between different models of the same phone, depending on factors such as antenna placement and power output.
6. What is a safe SAR value?
There is no universally agreed-upon “safe” SAR value. However, mobile devices must comply with SAR limits set by regulatory authorities, ensuring they fall within acceptable safety levels.
7. Are high SAR values dangerous?
Higher SAR values indicate that the body absorbs more electromagnetic energy, but it does not necessarily mean they are dangerous. Mobile devices must meet regulatory safety guidelines to ensure they pose no harm to users.
8. Are higher SAR values more harmful than lower ones?
There is no conclusive scientific evidence suggesting that higher SAR values are directly more harmful than lower ones. However, it is generally considered safe to use devices with lower SAR values.
9. Are iPhones safer than other smartphones in terms of SAR values?
iPhones, including the iPhone 7, adhere to SAR limits set by regulatory bodies like the FCC. Thus, they are deemed safe for use, similar to other smartphones complying with these guidelines.
10. Does using a phone case affect SAR values?
The use of a phone case does not significantly affect SAR values, as they are measured under laboratory conditions with or without a case.
11. Are wireless Bluetooth headphones safer in terms of SAR exposure?
Wireless Bluetooth headphones generally have lower SAR values compared to mobile phones as they operate at lower power levels. Therefore, they are considered safer in terms of SAR exposure.
12. Can I find SAR values for other iPhone models?
Yes, SAR values for different iPhone models can usually be found on Apple’s official website or by consulting the documentation that comes with the device.