Simultaneous Hotspot SAR Values

SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
1st	Samsung Galaxy A70	0.76 W/kg	47.5%
2nd	Samsung Galaxy S9	0.95 W/kg	59.38%
3rd	Samsung Galaxy S9 Plus	1.04 W/kg	65%
4th	Samsung Galaxy S8 Plus	1.10 W/kg	68.75%
5th	Apple iPhone 5	1.13 W/kg	70.63%
6th	Google Pixel 2	1.14 W/kg	71.25%
7th	Apple iPhone 7	1.16 W/kg	72.5%
Tied 7th	Apple iPhone 14	1.16 W/kg	72.5%
8th	Google Pixel 2 XL	1.18 W/kg	73.75%
9th	Samsung Galaxy A12	1.19 W/kg	74.38%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
Tied 9th	Samsung Galaxy A50	1.19 W/kg	74.38%
10th	Samsung Galaxy S21 FE	1.24 W/kg	77.5%
11th	SAMSUNG GALAXY A73	1.27 W/kg	79.38%
12th	Samsung Galaxy S23 Plus	1.28 W/kg	80%
Tied 12th	SAMSUNG GALAXY A14 5G	1.28 W/kg	80%
13th	SAMSUNG GALAXY A33 5G	1.29 W/kg	80.63%
14th	SAMSUNG GALAXY A51 5G	1.35 W/kg	84.38%
15th	Samsung Galaxy S23	1.36 W/kg	85%
16th	Samsung Galaxy A50S	1.38 W/kg	86.25%
17th	Samsung Galaxy A54 5G	1.44 W/kg	90%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
Tied 17th	Apple iPhone 13 Pro	1.44 W/kg	90%
Tied 17th	Apple iPhone 13 Pro Max	1.44 W/kg	90%
Tied 17th	SAMSUNG GALAXY A22 5G	1.44 W/kg	90%
18th	Apple iPhone 13 Mini	1.46 W/kg	91.25%
19th	Google Pixel 5A 5G	1.47 W/kg	91.88%
20th	Apple iPhone 11 Pro	1.48 W/kg	92.5%
Tied 20th	Apple iPhone 15 Pro Max	1.48 W/kg	92.5%
21st	Apple iPhone 15	1.49 W/kg	93.13%
22nd	Apple iPhone 14 Pro Max	1.50 W/kg	93.75%
Tied 22nd	Apple iPhone 15 Plus	1.50 W/kg	93.75%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
23rd	Apple iPhone 13	1.51 W/kg	94.38%
24th	Apple iPhone XS MAX	1.52 W/kg	95%
Tied 24th	Apple iPhone 11	1.52 W/kg	95%
25th	GOOGLE PIXEL 7 PRO	1.53 W/kg	95.63%
Tied 25th	Apple iPhone Xs	1.53 W/kg	95.63%
Tied 25th	Apple iPhone 11 Pro Max	1.53 W/kg	95.63%
Tied 25th	Apple iPhone SE 3 (2022)	1.53 W/kg	95.63%
Tied 25th	Samsung Galaxy A03s	1.53 W/kg	95.63%
26th	Samsung Galaxy M54	1.54 W/kg	96.25%
Tied 26th	Samsung Galaxy S23 Ultra	1.54 W/kg	96.25%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
Tied 26th	Apple iPhone 12 Pro	1.54 W/kg	96.25%
27th	GOOGLE PIXEL 6 PRO	1.55 W/kg	96.88%
Tied 27th	Samsung Galaxy A14	1.55 W/kg	96.88%
Tied 27th	SAMSUNG GALAXY A52	1.55 W/kg	96.88%
Tied 27th	Apple iPhone 12	1.55 W/kg	96.88%
28th	Apple iPhone 6s Plus	1.56 W/kg	97.5%
Tied 28th	Apple iPhone SE	1.56 W/kg	97.5%
Tied 28th	Apple iPhone 8	1.56 W/kg	97.5%
Tied 28th	Apple iPhone X	1.56 W/kg	97.5%
Tied 28th	Apple iPhone 15 Pro	1.56 W/kg	97.5%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
29th	Samsung Galaxy A23 5G	1.57 W/kg	98.13%
Tied 29th	Samsung Galaxy A34	1.57 W/kg	98.13%
Tied 29th	Samsung Galaxy S22 Plus	1.57 W/kg	98.13%
Tied 29th	Apple iPhone 12 Pro Max	1.57 W/kg	98.13%
Tied 29th	Apple iPhone 14 Pro	1.57 W/kg	98.13%
30th	Google Pixel 5	1.58 W/kg	98.75%
Tied 30th	Samsung Galaxy A13	1.58 W/kg	98.75%
Tied 30th	SAMSUNG GALAXY A22	1.58 W/kg	98.75%
Tied 30th	Samsung Galaxy A24 4G	1.58 W/kg	98.75%
Tied 30th	SAMSUNG GALAXY A53 5G	1.58 W/kg	98.75%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
Tied 30th	Samsung Galaxy S10 Lite	1.58 W/kg	98.75%
Tied 30th	Samsung Galaxy S21	1.58 W/kg	98.75%
Tied 30th	Samsung Galaxy S22 Ultra	1.58 W/kg	98.75%
Tied 30th	Apple iPhone 7 Plus	1.58 W/kg	98.75%
Tied 30th	Apple iPhone 14 PLUS	1.58 W/kg	98.75%
31st	Google Pixel 6A	1.59 W/kg	99.38%
Tied 31st	Google Pixel 7a	1.59 W/kg	99.38%
Tied 31st	Apple iPhone 6 Plus	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy A23 4G	1.59 W/kg	99.38%
Tied 31st	SAMSUNG GALAXY A32 5G	1.59 W/kg	99.38%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
Tied 31st	SAMSUNG GALAXY A42 5G	1.59 W/kg	99.38%
Tied 31st	SAMSUNG GALAXY A72	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy Z Flip3	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy Z Flip4	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S20 FE	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S10e	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S10 5G	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S20	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S20 Plus	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S21 PLUS	1.59 W/kg	99.38%
SAR Rank	Phone Model	Simultaneous Hotspot SAR	% Legal Limit
Tied 31st	Samsung Galaxy S21 Ultra	1.59 W/kg	99.38%
Tied 31st	SAMSUNG GALAXY M52 5G	1.59 W/kg	99.38%
Tied 31st	Samsung Galaxy S22	1.59 W/kg	99.38%
Tied 31st	Apple iPhone 6	1.59 W/kg	99.38%
Tied 31st	Apple iPhone 8 Plus	1.59 W/kg	99.38%
Tied 31st	Apple iPhone 12 Mini	1.59 W/kg	99.38%

About Simultaneous Hotspot SAR: Understanding SAR Testing for Mobile Devices

Mobile devices have become an integral part of our daily lives, and it’s hard to imagine a world without them. However, concerns have been raised about the potential health risks associated with long-term exposure to radiofrequency radiation emitted by these devices. This is where Specific Absorption Rate (SAR) testing comes in, which measures the amount of radiation absorbed by the body when using a mobile device. In this article, we will be discussing SAR testing, specifically the simultaneous hotspot SAR value, which is a measure of the amount of radiation absorbed by the body when using a mobile device with multiple antennas transmitting at the same time.

History of SAR Testing

SAR testing is a technique that measures the amount of electromagnetic energy absorbed by the human body when using a wireless device. The practice dates back to the 1980s when researchers began investigating the potential health effects of cell phone radiation. At the time, there was a lot of uncertainty about the long-term effects of exposure to electromagnetic radiation. Some researchers were concerned that the radiation emitted by cell phones could cause cancer, while others argued that the radiation levels were too low to have any significant impact on human health.

To settle the debate, researchers developed a standard method for measuring SAR, which involved using a phantom head that simulated the absorption characteristics of human tissue. The phantom head became known as the Specific Anthropomorphic Mannequin (SAM), and it’s still used today for SAR testing.

Understanding SAR Testing

The SAR value is a measure of the rate at which RF energy is absorbed by the body tissue closest to the phone’s antenna. It is measured in watts per kilogram (W/kg). SAR testing involves placing a mobile phone in different positions on the SAM phantom, including the cheek and tilt positions. The mobile phone is then exposed to an RF signal at its highest power level, and the SAR value is measured.

The SAR measurement is done using a specific test protocol that involves a reference measurement, an area scan, a zoom scan, and a drift measurement. During the area scan, the SAR value is measured in a grid pattern across the entire body region covered by the mobile phone. The zoom scan is a more precise measurement that measures a small cube around the maximum SAR measured during the area scan. The reference measurement and drift measurement are done to ensure that the power from the device does not drift during the measurement.

Simultaneous Hotspot SAR Values

The simultaneous hotspot SAR value is a measure of the amount of radiation absorbed by the body when using a mobile device with multiple antennas transmitting at the same time. This is particularly important because multiple antennas can produce a higher level of radiation than a single antenna.

To measure the simultaneous hotspot SAR value, SAR testing is performed on each antenna separately, and the highest reported SAR result is selected for each test position. These results are then summed together, assuming that the hotspots are co-located, to determine if the simultaneous SAR is within the safety limit. In the USA, the safety limit for simultaneous hotspot SAR is 1.6 W/kg.

If the simultaneous hotspot SAR value is over the limit, the two results are summed again using the Combined Fast SAR feature of ComSEMCAD X software. This is because the hotspots of the two summed measurements may not be exactly on top of each other, so using the software can produce a more accurate result. If the final value is within the safety limit, the phone is considered safe for use.

FAQs

1. How can I find out the SAR value of my mobile phone?

You can usually find the SAR value of your mobile phone in the phone’s user manual or on the manufacturer’s website. Alternatively, you can search for your phone’s make and model on the FCC’s database of SAR values.

2. What is the difference between SAR and simultaneous SAR values?

SAR values measure the amount of RF energy absorbed by the body from a single transmitter, while simultaneous SAR values measure the amount of RF energy absorbed by the body from multiple transmitters operating simultaneously.

3. What is the safety limit for SAR values in the USA?

The safety limit for SAR values in the USA is 1.6 W/kg.

4. Are low SAR values always better?

While lower SAR values generally indicate lower levels of RF energy absorbed by the body, it is important to also consider other factors such as duration of use, distance from the body, and specific absorption rates of different tissues when assessing the potential health effects of mobile phone use.

Understanding Simultaneous Hotspot SAR: A Comprehensive Guide

Simultaneous Hotspot SAR and Its Effects on Human Health: What You Need to Know

The Importance of Simultaneous Hotspot SAR Testing for Wireless Devices

Navigating the World of Simultaneous Hotspot SAR: A User’s Guide

Simultaneous Hotspot SAR and Wireless Technologies: What You Should Consider

Author: RF Safe

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