All Galaxy S21 series models, electromagnetic safety class 1
Electromagnetic absorption rate varies depending on the antenna location
The number of electromagnetic waves from the Apple iPhone 12 series released in October last year was higher than that of the Samsung Galaxy S21 series released last month. Smartphones released in the domestic market must obtain electromagnetic wave rating system certification from the National Radio Research Institute before launch. If the measured value of the electromagnetic wave from a mobile phone is 0.8W/kg or less, it is grade 1, and if it is 0.8~1.6W/kg, it is grade 2.
According to the latest electromagnetic wave absorption rate (SAR) for each smartphone released by the National Radio Research Institute, all iPhone 12 series products were found to be higher than the Galaxy S21. Looking at the SAR value of the Galaxy S21 series, the Galaxy S21 (0.593), S21 Plus (0.442), and S21 Ultra (0.489) are all low, corresponding to the first grade.
On the other hand, the SAR value of the iPhone 12 series was the iPhone 12 (0.96), the iPhone 12 Pro (1.187), the iPhone 12 Pro Max (0.95), and the iPhone 12 Mini (1.194) were all ranked in 2nd grade. LG Electronics’ Wing (1.163) and V60 ThinQ (0.847) models were also surveyed as 2nd grade.
Electromagnetic waves are generated when using portable transmission radio equipment such as mobile phones. Electromagnetic waves can be absorbed by the human or animal body, and the value expressed in numbers is called the electromagnetic wave (human) absorption rate (SAR).
SAR (Specific Absorption Rate), which means the absorption rate of electromagnetic waves (human body), refers to the amount of electromagnetic energy absorbed by the body’s unit mass (1kg or 1g) per unit time, and the unit is W/kg, or mW/g.
One of the reasons that the SAR value varies depending on the smartphone is the location of the antenna inside the product. An official from the National Radio Research Institute said, “Generally, Samsung Galaxy products show a low SAR value corresponding to the 1st class, and Apple and LG products correspond to the 2nd class,” he said. “There may be various reasons, but the value may vary depending on where the antenna is located. “I have.”
Harmfulness to the electromagnetic waves of mobile phones has been continuously raised. In 2019, the Chicago Tribune in the United States reported that Samsung and Apple’s smartphone absorption rate exceeded the standard set by the Federal Communications Commission (FCC). As a result, consumers filed a class lawsuit that they could adversely affect the human body such as genes, genital organs, and cancer. However, the FCC’s own investigation revealed that it did not exceed the standard, and the situation ended.
As the spread of 5G telecommunications (5G) smartphones using high frequencies from this year is accelerating, the controversy over the harmfulness of electromagnetic waves is expected to rise again.
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