At the Xiaomi Spring Conference, in addition to the eye-catching Xiaomi 5, there was also a Xiaomi 4S, an upgrade of the Android Little Prince 4c. Although the introduction is not long, in addition to the obvious appearance changes and fingerprint recognition, what part of the upgrade did 4S make compared with 4c? Let's have a look.
From the parameter chart, there is a small difference between 4S and 4c in size, while in terms of configuration, 4S is only the built-in ROM expanded to 64GB and the battery capacity increased. The network part is the so-called All Netcom 2.0 (as reminded by netizens, 4c is also the All Netcom 2.0 promoted by Xiaomi), 4S has added support for 4G+and VoLTE. The advantage of 4S is that it has added the popular fingerprint recognition.
Appearance and packaging
The Xiaomi 4S is the same as the Hongmi Note3, Xiaomi 5 and other models produced in 2016, which are uniformly packaged in white, and no longer have the colorful boxes before. The front is printed with 4S rendering and model name, and the side is printed with the logo of Xiaomi Company.
The machine's ID code - IMEI/SN/MEID is clearly printed on the sticker on the back when turned over. The configuration, network format and packaging content are clear at a glance.
The accessories other than the Xiaomi 4S machine body are very simple, including simple instructions, San Bao vouchers, card taking pins, chargers and a USB Type-C data cable. Earphones need to be purchased by yourself.
The built-in charger supports Qualcomm's QC2.0 standard, and the output specifications are 5V==2A, 9V==1.2A and 12V==1A. No machine like an international factory supports fast charging, but only an original 5V/2A charger is provided.
Back to the Xiaomi 4S machine itself, it was replaced with double-sided glass+metal middle frame. There was also a layer of plastic wrapping between the metal middle frame and the glass for transition. This design had previously appeared on Sony's Z series. However, at first glance, you can see that 4S and 4C are kindred brothers. The three touch buttons on the bottom, the earpiece on the top, the front camera and the sensor layout are identical, not to mention the iconic Xiaomi logo. In terms of personal aesthetics, the white front panel is not as integrated as the black one, especially the touch buttons at the bottom are slightly ugly.
The back is quite different. One uses a glass back and the other is an ordinary plastic back. The 4S store has more fingerprint identification, and the speakers have also been moved to other places. The camera and the dual color temperature flash are in exactly the same position.
The right button is the volume button+power button. The 4S button is slightly larger than the 4c button, and it feels better.
The SIM card slot is on the left, and both computers support dual card and dual standby.
The two headphone holes on the top are similar to the infrared layout. The 4S also moves the noise reduction microphone to the top. There is an injection antenna near the headphone hole because of the metal frame.
The USB Type-C at the bottom is placed in the center. Although there are openings on both sides of the 4S, there are microphones on the left and speakers on the right, and no dual speakers are arranged.
In addition to the different materials used in the appearance, the 4S and the 4c are basically the same in terms of layout, whether it is keys, card slots or holes, and can be called brothers. Although Xiaomi officially said that the 4S is more beautiful and beautiful, the appearance of radish and vegetables is different. It is not surprising that some people prefer the 4c. It must be pointed out that the glass 4S is better in texture than the plastic 4S.
screen
The software test shows that the average Δ E of this screen is 4.5, and the maximum Δ E is 9.7, which is average. By default, the color temperature reaches 9000K, which is generally cold. Users who prefer warm screens need to adjust the white balance.
Covering 99.7% of sRGB color gamut, the contrast is 926:1, and the highest brightness in software testing is 410 nits, and the lowest brightness can even be lower than 1 nit, The brightness of the whole screen is evenly distributed, slightly lower than that of 4c . It is specifically mentioned here, perhaps because the minimum brightness is lower than 1 nit. If the automatic adjustment is turned off and the brightness is turned to the minimum, the entire screen will not be clearly visible. I hope that Xiaomi can pay attention to this in future firmware upgrades.
performance
In terms of performance, 4S and 4c also use Snapdragon 808 as the SoC. Our 4c is a high configuration version, and the memory is the same as that of 4S. There should be no difference in prediction performance. The actual test results also show that the scores of 4S and 4c in the test are almost the same. The slight difference is the storage and reading speed of 4S, which may be related to the replacement of 64GB memory chips.
In GPU related tests, the performance of the 4S, 4c and LG V10 machines on GFXBench that use Snapdragon 808 is the same, and there is still a gap with the more high-end Snapdragon 810, but the performance is enough for daily use.
system
In terms of the system, the latest firmware is MIUI 7 (6.3.24 development version). Based on Android 5.1.1, Xiaomi said in January that it would start to push Android 6.0 based systems in succession, but now it is March, and still can't eat cotton candy. At the same time, we found an interesting thing. The latest firmware of 4c is consistent with the Android version number, baseband version number and kernel version number of 4S, which makes people wonder whether Xiaomi is a system directly used on two mobile phones? (laughing)
MIUI 7 is highly complete on the whole, and can be used from the start. There is no threshold, and the operation is smooth. The available memory is about 1.7G when starting up. The only difference from 4c is that there are more fingerprint options in the settings. Up to 5 fingerprints can be entered, and the speed of identification and response is in line with the rules, which is not surprising. There are not many practical scenarios available, but the familiar lock screen, child mode, file management and application lock. The payment scenario has not been integrated for the time being.
The latest MIUI is worth mentioning that advertisements are everywhere, so it is called ADUI. Open a folder and be unprepared for application promotion; I just want to enter the application to control the appliance. The following is the news pushed by the aggregator. Although there are many advertisements, the roaming service launched by Xiaomi is very convenient for overseas users. You can simply buy the service without having to wrestle with operators.
photograph
In terms of photography, both 4S and 4c are 13 million ƒ/2.0 aperture cameras, which support PDAF (phase focusing). The specific CMOS official did not specify. The focusing speed is fast, and there is no phenomenon of pulling the air box. However, the 4S store occasionally fails to focus, which requires manual adjustment. According to the actual demo performance, Xiaomi's white balance, which has been criticized, has been improved, and the whole scene has been restored more accurately, which is very obvious compared with 4c.
(100% local)
This group of contrast pictures is quite obvious. The top part of the building is a blue structure. It can barely be distinguished from the 4c sample only after being magnified. The performance of 4S is relatively much better, and the sky in rainy weather at that time was restored better, and the picture purity was higher. In terms of analytical power, the analytical power of the two is almost the same, and the detail reduction is not far away.
Of course, the white balance of 4S can't be said to be accurate. In this group of pictures, the ambient light is relatively dark. Both 4S and 4c increase the brightness of the picture, which looks like a sample shot in sunny days.
If HDR is turned on, the brightness of the picture will be more powerful, the color saturation will be higher, and the sense of oil painting will be stronger. Considering the actual situation, after HDR is turned on, the real situation can not be restored at all, but its sample may suit some people's preferences. Whether HDR is enabled or not depends on the user's requirements.
At night, the 4S store has slightly improved compared with the 4c store. What is more obvious is that the 4S store has a better analytical ability. The text below can be recognized by the 4S store. The same scene will be blurred when the 4c store changes.
When it comes to indoor scenes, the difference between the two is almost white balance. The 4S is more accurate, and the 4c is obviously white. By the way, all photos will have a certain bonus when viewed on the mobile phone, which is more accurate and pleasing.
Endurance and heating (fast charging)
The 4S is equipped with a 3260mAh battery, which is larger than the 4c battery. After 30 minutes of large-scale games (NBA 2K15), 30 minutes of wifi and 4G Internet access (including 10 minutes of web browsing, microblog and post bar), one hour of music playing and 30 minutes of local video playing, after a full three hour endurance test, the remaining power is 70%, plus 3% of the half hour call consumption, and the remaining 67%, which is improved compared with 4c.
The 4S supports Qualcomm's QC2.0 fast charging protocol. The actual test result is about 9.2V/1.2A, which fully meets the standard.
After running a large game, the maximum temperature reached 43.2 degrees Celsius, not counting the stove, but because of the 4S glass and metal middle frame, it felt warm to the touch. At this time, the plastic material of 4c has an advantage.
Summary
At present, the price of Xiaomi 4S is 1699, while the price of 4c has been reduced with the launch of 4S. The standard version and high-end version are 1099/1299 respectively. Compared with the 4S and 4c high configuration versions, the extra 400 yuan can obtain fingerprint identification and larger storage space, better body texture, improved network support, and further photography and endurance. As for performance, the two are equal. How to choose these two machines depends on whether the improvement meets the needs of consumers.
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