Survey outline:
Foreword
Part One: Unpacking
Part II: Hardware Configuration
Part 3: Taking photos and videos
Part IV: Life and Charging
Part 5: Summary
postscript
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text
Foreword:
Thanks for what it is worth to buy the site to give this opportunity to test, sum up the last time the test experience, this test abandon the lengthy content, try to use the form of pictures, videos, charts to evaluate. Considering comprehensively, the measured part of the project adopts a comparative method. The comparison mobile phone is a Samsung S7E with a price of 5K and a glory of 5C with a price of 1K. Millet 5S is just in between these two price points, through comparison to analyze the cost performance. Millet 5S's focus on this promotion was "black technology," and through this test, we can see how dark is black technology.
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The first part: Unpacking:
Unpacking GIF
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Part II: Hardware Configuration
1.CPU core:
Check the information, Xiaomi 5S uses the highest frequency of 2.15GHz Xiaolong 821, not the standard frequency. The millet 5S Plus uses the Opteron 821 with the highest frequency of 2.35 GHz. In addition, the GPU frequency of the two is not the same, millet 5S GPU frequency is 624MHz, millet 5S Plus is 653MHz. Millet 5S regardless of CPU or GPU frequency, exactly the same with millet 5. Someone will certainly say that this is not using the dragon 820! This is not the case.
It can be seen that Xiaomi 5s 821, 2 big core operating frequency is 2.15GHz, 2 small cores are 2GHz, and 820's small core frequency is 1.59GHz. The standard version of the 821, the large core operating frequency is 2.35GHz, and the small core is 2.19GHz, so Xiaomi 5s uses Xiaolong 821, which is down-sized for both core and core. Its purpose is to open the gap for Xiaomi 5s Plus.
An Bunny runs three times to take the median
Summary: Xiaomi official website, the Xiaolong 821 chip is also listed as one of the "black technology", but due to castration part of the performance, people feel that there is always lack.
2. Screen:
Millet 5S screen uses a 5.15-inch 1080P screen, nominal brightness 600nit, contrast 1500:1, NTSC color gamut 94.4%. Look at the parameters quite cattle, to see the actual performance:
Summary: Xiaomi 5S screen multi-angle test, the results are relatively good, there is no obvious short board. The brightness in the comparison test is indeed the highest. In the comparison of the three primary colors and black and white, millet 5S has bright colors, high saturation, and the most accurate white. The black light leakage control is excellent, and the grayscale performance is also good. The Samsung S7E is a relatively true reduction. The color, but congenitally limited, brightness is not high. Glory 5C cost limit, the darkest brightness, low contrast. From the picture comparison, millet 5S high brightness, bright colors, more to please the eye. However, the Samsung S7E is better. Due to the brightness, millet 5S is clearly visible in the sun. In addition, the high-profile 5S is a pressure-sensitive screen, but due to the current lack of software, there is no bright spot and no other introduction is made.
Millet 5S screen black technology index: ★ ★ ★ (Samsung)
3. Ultrasound fingerprinting
The first "black technology" adopted by Xiaomi 5S is "ultrasonic fingerprinting." Take a look at the official introduction
Simply put the fingerprint identification module under the glass, do not open the hole, through ultrasonic identification. Let's take a look at the actual effect
Millet 5S unlock is very smooth regardless of the status of the information screen or the bright screen. The actual experience is better than the Samsung S7E.Wet hands to unlock contrast
Through testing, it can be seen that although Xiaomi 5S has a success rate of 40-50% in wet hands, it can indeed unlock the fingerprint lock. The Samsung S7E is completely not. I think that the ultrasonic fingerprint is very suitable for waterproof mobile phones. It should be that after all, the probability of unlocking a waterproof mobile phone wet hand is greater than that of an ordinary mobile phone. Dirty hands to unlock contrast In the dirty hand test, the result was just the opposite: Xiaomi 5S could not unlock the fingerprint lock, and Samsung S7E had a certain percentage to unlock.Summary: As the first application of "ultrasonic fingerprinting" of mobile phones, Xiaomi 5S remarkable performance, especially in wet hands under the circumstances is very prominent, plus no need to open the hole in the glass can be placed directly fingerprint module, Yan value more high.
"Ultrasonic fingerprinting" black technology index ★ ★ ★ ★ ★ (five stars)
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Part 3: Taking photos and videos
The biggest selling point of Xiaomi 5S is Sony's IMX378 1200w camera with a photosensitive area of ​​1/2.3 inch. Since it is the biggest selling point, I will focus on the introduction.
The 1/2.3 inch sensor size is the current sensor size for many consumer-grade card and telephoto cameras. IMX378 looks like the first time it has been used in mobile phones, with 12 million effective pixels and a pixel pitch of 1.55 microns.
First, take pictures
↑ sunny outdoor
Indoor incandescent macro
Cloudy natural light
Under the sun
Sunset backlighting
Indoor dim light
↑ Photographs of different metering points
Overall, Xiaomi 5S has a very good quality and can compete with some consumer-grade card machines. The quality of a photo is not determined by a simple sensor, but there are many factors such as lens and software tuning. As a comparison, the Samsung S7 Edge was ranked as one of the first mobile phones by DxOMark in France in 2016 and scored 88 points. Take a look at the comparison between Xiaomi 5S and Samsung S7E and “Thousand Yuan Machine Representative†glory 5C:
1.HDR effect and contrast quality of lens edge imaging 
The millet 5 SHDR effect is not the best, but it is still very good in terms of the image quality noise control at the edge of the lens.
2. Still life box color reproduction degree contrast 
Ivory card font enlargement contrast 
In the light of the still-life box, the color of the millet 5S is more intense, and the ivory card of the enlarged detail part is slightly overexposed. The Samsung S7E is accurate in color, and the glory 5C is slightly dull.
3. Comparison of white balance and noise control under street lights 
Millet 5S noise control is very good, white balance is not bad. Samsung is slightly inferior in white balance, glory more 5C noise.
4. Food shooting color contrast 
Millet 5S does not have a "food mode", but its color itself is more intense, so the film looks good. The Samsung S7E's food mode comes with blur and color enhancement, and the glory 5C's "food mode" is totally unacceptable.
5. Macro and detail zoom comparison 
Zoom in details 
In macro terms, millet 5S still showed a strong color to please the eyeballs, and the details of the enlarged stamens were also lost. Samsung S7E color reproduction, light, zoom details better than millet 5S, glory lost too much because of the details can only continue to bottom.
6. Comparison of night mode 
Millet 5S this victory, especially in terms of noise control, is stronger than the Samsung S7E. For Samsung to be transparent, ISO settings are too high, causing noise to be noticeable. Although glory 5C lacks details, the screen is dark, but the performance is remarkable.
7. Front camera contrast (friendship of live-action baby cubs) 
In the self-portrait comparison of the front camera, since each camera adopts the automatic beauty mode, the details are almost identical in appearance, but there is a difference in color, and the Samsung S7E is still relatively accurate.
Second, camera
Let's look at the quality of the Xiaomi 5S mobile phone 4K and 1080P video, but the 4K video is directly compressed by Youku. You can only make up for it.
4K
1080P
4K screenshot comparison
1080P screenshot comparison 
4K camera aspect millet 5S still maintains a bright and rich color, very pleased with the eye, but the real cub's hair to see, the details are still missing a lot. 1080P Because the position of the bear and the children moved their positions, the screenshots are not comparable, and they can still be compared with the 4K. This is the details are not so obvious.
Summary: Xiaomi 5S has excellent hardware conditions, but the software tuning is still not good enough, although the colors are eye-catching, but many problems still need to be improved, Samsung's advantage is also reflected in the training, I hope Xiaomi through upgrade To improve the quality of the film. However, it is undeniable that due to excellent hardware, Xiaomi 5S is still excellent in terms of noise control, HDR, white balance, and backlighting.
"Super camera" black technology index: ★ ★ ★ ★ (4 stars)
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Part IV: Life and Charge
First, life:
Millet 5S battery capacity of 3200mAh battery, look at the individual test of battery life:
The most power-hungry application is that the power consumption for video capture has reached 18% in 60 minutes, and the rest is within the normal range.
Simulate daily use tests:
Test conditions: Mobile, China Unicom dual SIM dual standby, WIFI, wireless data, Bluetooth, GPS open, NFC closed, a total of 48 installation software, MIUI version v8 6.10.20.
At 7:00 in the morning, the power cord was unplugged, and the power level was displayed as 100%. At 23:27 in the evening, the power was automatically turned off after 2% power was displayed. The entire battery life time was 16 hours and 27 minutes (987 minutes). Total use time was 334 minutes, which accounted for 33.8% of the total battery life (987 minutes)! It is considered to be the degree of heavy use of mobile phones, and navigation, games, photography, video, video playback, etc., in which power consumption is relatively large, total 202 minutes, accounting for 20.4% of the total battery life. In the case of heavy use of mobile phones, mobile phones can still adhere to more than 16 hours. In the case of mild and moderate use of millet 5S, it should be no problem to adhere to one and a half days.
Second, charge:
Millet 5S supports “Fast Charge 3.0â€, and the theory supports a dynamic adjustment of charging voltage and current from a range of 5V-12V to a 200mV increment. After the actual measurement as shown below
The calculation is started after the battery power is automatically turned off by "0" and the total is 92 minutes to "100%". After charging for 5 minutes, the battery power reached "8%", and when it was charged to "50%", it took 32 minutes, and the charging efficiency dropped significantly after "75%".
The charge voltage from the beginning to 60% (38 minutes) basically fluctuates around “6.25V†and then gradually decreases until the lowest value of “6.06Vâ€, but there are other “QC3.0â€-supported voltage range.
The charge current is also rapidly dropped from the highest "2.5A" from 38 minutes to the last "0.21A"
Charging test uses a tester that supports QC2.03.0MTK-PE, try many times, but all the same results, millet 5S charging voltage has been fluctuating between 6.3v-6v, charging peak power is also about 15.2W .
Summary: In Xiaomi's official website, "Fast Charge 3.0" is also considered to be one of the black technology, but the millet 5S charging efficiency is measured at the normal fast charge level, and 92 minutes charging time is slightly longer.
"Quick Charge 3.0" black technology index: ★ ★ (2 stars)
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Part 5: Summary
advantage
The camera has an excellent night view, noise control and resolving power.
High screen brightness, wide color gamut, and rich color expression.
Ultrasonic fingerprinting has a high value of color, correspondingly fast, and wet hand recognition.
The phone is excellent.
MIUI system is stable and smooth.
Shortcomings
The castrated version of the Snapdragon 821 core.
Charging time is longer.
Before and after the camera color reproduction needs to be improved.
No standard headphones, loud sound quality outside.
The millet 5S mobile phone that has been measured this time has been deviated from the previous model of “cost-effectiveness†as its selling point. Instead, it used “ultrasonic fingerprint recognition†and “ultra-light-sensitive camera†as the main selling points of black technology. Xiaomi did indeed have these two points. It has made people "eye opener". Although other so-called "black technology" experiences are more common, the beautiful appearance, balanced performance, and good shooting quality make people think that the Xiaomi 5S is still a mobile phone worth having.
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Postscript: At the time of finishing the draft, it was exactly the time Xiaomi developed the cloth. I thought Xiaomi NOTE 2 would be the protagonist. After watching the press conference, I really felt that Xiaomi’s “black technology†was the “millet concept phone MIXâ€: 91.3%. Occupy screen ratio, all-ceramic fuselage, cantilever beam piezoelectric ceramic acoustic system, ultrasonic distance sensing, I just want to say 3499 is not expensive. I hope that Xiaomi insists that "black technology" will continue to "go in the dark" all the way, and hopes to test MIX next time.
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