This article was contributed by Jueming on Weibo

People didn't pay much attention to the signal problem of the mobile phone until the death grip appeared on the iPhone 4. As long as the phone frame was completely covered with hands, the signal would quickly weaken until there was no service. At the beginning, Jobs replied on the ground that his grip was wrong, and later changed his mind with no problem, but finally Apple admitted the problem and gave users Bumper as a solution, which ended the matter. Later, people gradually forgot about the signal problem until the recent video of Wang Ziyou's evaluation of MX2.

In this video, Wang Ziyou pointed out that the MX2 signal is inferior to other machines. The data in Wang Ziyou's evaluation is more of a professional signal test, while ordinary users cannot feel the difference of signals from the values. The following article will test the signal in a more intuitive way. The signal strength changes of MX2, MX, MI1, MI2, Note2, One X+, Nexus4 will be tested in three positions of left hand holding, table placing, and right hand holding. The test positions are the same. The test network is Shenzhen Unicom 3G.

In the test data, the larger the dBm and asu are, the better. Whether the antenna system is designed well or not depends on the strength of the influence of different postures on the signal. In fact, many netizens said that whether the signal is good or not will affect the use, but the weaker the signal is, the more power the mobile phone needs to increase in order to communicate, which will lead to a rapid rise in the heat and power consumption of the mobile phone. Moreover, the influence of signal strength on Internet access intensity and call quality should not be underestimated.

MX2

From the data, the signal of MX2 is still normal when it is placed on the table, but there will be serious signal attenuation when it is held by both hands. The left hand is slightly better, while the right hand is close to the state of no signal.

MX

The test result of MX is terrible. When it is put on the table, the signal has broken away from the normal level, and the left and right hands hold the signal to the worst level.

MI1

The result of m1 is good. The signal on the table can reach the normal level, while the attenuation degree of left and right hand holding is the same, but still within a reasonable range.

MI2

I have to say that Xiaomi's antenna design on Xiaomi 2 is good. No matter what posture, the signal is very stable.

Note 2

Note 2 The condition is normal when standing still, but the signal attenuation of left hand holding is slightly more serious than that of right hand holding, but it is still acceptable. Although Samsung has become an overlord in the market, it still exposed its weakness in communication in the test.

One X +

One X+achieved the best results in this test. No matter in any posture, the signal is the strongest, and the left and right hand holding posture will not affect the signal. HTC has a good accumulation in communication.

Nexus 4

The N4 also achieved good results. Although both left and right hands attenuated, the signal was still good. However, it also reflects that Korean manufacturers have not paid much attention to communication.

Summary:

From the test results, HTC has the best signal in this test, followed by Samsung and LG, Xiaomi has also made great progress, and Meizu has the worst signal. Meizu has launched many models so far, which should have accumulated in antenna design and communication. However, from this evaluation, although it has made progress in MX2, it still does not reach the mainstream level. Xiaomi's progress is also very obvious. He has made good achievements in basic communication. It seems that Motorola's engineers are still very useful. HTC, as an old brand manufacturer, has shown excellent performance in this test. Although its appearance is often complained about by netizens, its long-term accumulation should not be underestimated. Although Korean manufacturers have gained a large market share, they still exposed weaknesses in signal in this test.