How big is a mobile phone? The answer to a question is changing again and again as the mobile phone grows larger, from 3.5 "to 4" to 4.7 ", 5.0", then to 5.5 ", 6", and even to the cross boundary size of the 7 "tablet. Generally speaking, it is a trend for mobile phones to become larger. However, in recent years, manufacturers are more willing to limit the size of mobile phones to 5.0~5.5 inches. Indeed, 5.0~5.5 inches mobile phones are more easily accepted by users. They have a good screen experience, but can be controlled by one hand.

　　 At the beginning of this year, with the introduction of the 4.0 inch iPhone 5SE by the industry leader iPhone, and the popularity of many clusters, there is a great tendency to return to the original intention and make the phone small again. The Android camp was confused for a while, and the author even guessed that there would be many small size mobile phone SE models in the next period of time. BUT， At this juncture, Xiaomi released the largest Xiaomi mobile phone in history, the Xiaomi Max, with a 6.44 inch screen, which shocked people. This is to challenge the pocket size mobile phone! In order to keep out the sun in summer, the author took a hard hand to get a Xiaomi mobile phone, and after half a month's trial, shared this "big and lasting" Xiaomi mobile phone with everyone.

　　 Unpacking

　　 As a sub model of Xiaomi series, Max's outer packaging style inherits Xiaomi's simple packaging design style, but also has some differences from the previous Xiaomi mobile phones. Pure white cardboard box with red slogans is simple and rude.

　　 Xiaomi Max has three configuration versions to choose from, including 1499 yuan Snapdragon 650 processor+3GB storage+32GB storage, 1699 yuan Snapdragon 652 processor+3GB storage+64GB storage and 1999 yuan Snapdragon 652 processor+4GB storage+128GB storage. This time, the author got the low configuration gold version of 1499.

　　 When the package was opened, the phone was almost filled with the whole package. The size impact was still very strong. The first time I saw it, I felt an impulse to turn it on and try it out. As for the accessories inside, they are basically the consistent style of Xiaomi mobile phones. There are not many (no earphones, protective covers, etc.), and there are not many (only data cables, power adapters, user manuals and warranty certificates).

　　 Appearance: large and thin, feel better than expected, workmanship can be done more up to standard

　　 six point four four The size of the "inch mobile phone is beyond doubt. Its three dimensions reach 173.1x88.3x7.5mm, and its weight reaches 203g. Compared with the current mainstream mobile phones with 5.0-5.5 inch screens, the Xiaomi Max is a giant.

　　 The front panel adopts a "big white" design similar to LeEco mobile phones. The front camera, light and distance sensors are symmetrically designed on both sides of the earpiece, which makes it very cute. The forehead is relatively narrow. The logo "Mi" of Xiaomi mobile phone has been removed, making the phone look cleaner and more integrated. 2.5D glass and narrow white edge design make the mobile phone more integrated and refined in the rest screen state. At the bottom of the screen are still the three off screen virtual buttons of Xiaomi mobile phone.

　　 Xiaomi Max adopts a three-stage metal body design, with a certain radian waist retraction on both sides similar to Xiaomi Note and Xiaomi 5, which makes the hand hold more snug. Starting from Xiaomi Note, Xiaomi's mobile phone has its own design continuation. It habitually designs the camera at the upper left corner of the back and is equipped with a dual color temperature flash. 　

　　 The middle metal at the back and the plastic at both ends of the three-stage structure, the middle metal material is often not cut by the whole blank CNC, but is more initially formed by aluminum die-casting, and then refined chamfering and sandblasting are performed by CNC cutting. Compared with CNC processing of the whole blank, die-casting molding is more efficient, with lower labor costs and higher utilization of materials, so the overall cost will be much lower.

　　 From the side of the phone, the metal of Xiaomi Max does not cover the whole phone frame. A layer of sandblasted ceramic material is used as the front frame buffer near the front plate, which can protect the screen.

　　 As far as the design and workmanship of the back is concerned, it is basically at the technological level of the red rice series thousand yuan machine. The metal in the middle section and the plastic at both ends are too loose, and the gap is too large. Even when pressing the two sides of the plastic part, you will hear a creaking sound. As a Xiaomi series mobile phone, this kind of workmanship is slightly disappointing.

　　 The current Xiaomi mobile phones already support the infrared remote control function all over the line, and Xiaomi Max is no exception. The popularity of infrared remote control is still a very practical function. Think about that in restaurants, when countless businesses are reluctant to open the air conditioner for you because they save electricity, they can turn on the air conditioner when people don't pay attention to stealing. God knows they are happy when they think about it. In addition to infrared, a 3.5mm headphone jack and a noise reduction microphone jack are added on the top of the phone, just like Xiaomi's mobile phone.

　　 At the bottom, when I blink, I think it is a double speaker design. In fact, half of the outlets are microphones, which are designed to be the same openings as the speakers just for symmetry. As a product of Xiaomi series, it is really strange that Tpye-C has not been added. Although Tpye-C has not been fully popularized yet, Xiaomi's brothers have all equipped it, and my Max can only use the standard Micro USB interface like Hongmi. Maybe it is more appropriate to call me Hongmi Max!

　　 The volume key, power key, Sim card slot and so on on the side are still in the style of Xiaomi. In terms of network support, Xiaomi Max also supports All Netcom 3.0, and can plug in telecom 4G cards blindly. This is a good news for telecom users. In addition, there is a smart two out of three card slot. The SIM1 position supports TF cards, which can be expanded by an additional 128GB, giving users more choices. 　

　　 Fingerprint identification: It supports black screen unlocking, fast unlocking, and has not yet supported Alipay and WeChat payment functions

　　 Like Hongmi Note3, Xiaomi Max also adopts the post fingerprint recognition scheme. Many manufacturers are used to placing the fingerprint identification module on the back of the fuselage. The advantage of this is that it can effectively control the size of the forehead and chin on the front panel screen, improve the proportion of the screen, and make the front panel look more integrated. Of course, the disadvantage is that the fingerprint can be unlocked only after the phone is picked up.

　　 Fingerprint entry is still very fast. It can be completed after 8 times. It supports information screen unlocking. In terms of unlocking speed, the mobile phones equipped with fingerprint identification on the market have basically entered the speed of a few tenths of a second. It is really meaningless to compare who is fast and who is slow. Through trial, the Xiaomi Max fingerprint identification module does not support wet hand identification, and occasionally there are identification errors. In addition, due to the sensitive adjustment, sometimes the skin is not touched when it is put in the pocket, which leads to failure for many times, and password input is required to open it again.

　　 In addition, although Xiaomi's fingerprint recognition supports the payment of Xiaomi Wallet, it is very regrettable that it does not support Alipay. WeChat payment does need to make efforts to expand the fingerprint recognition function.

　　 Hardware configuration: enough, balanced

　　 In terms of hardware, the standard version CPU of 1499 uses Qualcomm Snapdragon 650 processor, supplemented by 3GB operation memory and 32GB storage space. Snapdragon 650 is a processor with six cores. Compared with the high configuration version of Snapdragon 652, Snapdragon 650 has two 1.8GHz cores less. It consists of two 1.8GHz ARM Cortex A72 cores+four 1.2GHz A53 cores. At the same time, it also uses Qualcomm's latest Adreno 510 GPU.

　　 The running score of Anthare can easily reach 73452 points, which has completely reached the level of last year's flagship Snapdragon 810, and once again proves how powerful Qualcomm's 810 is and how strong this Snapdragon 650 is for mid end users. No wonder many manufacturers sell Snapdragon 650 and 652 as the configuration of many flagship computers. In this way, Xiaomi Max has a conscience.

　　 As we all know, the reason why Snapdragon 810/808 is strong is that they are composed of high-performance Cortex-A57 and power saving Cortex-A53 cores. The Cortex-A72 is an upgraded version of Cortex-A57. With the help of this performance level core, it is difficult for Snapdragon 650/652 not to be powerful. The current Android version can basically ensure absolute smoothness of the system. After playing some large games, such as NBA 2K16, the standard version of Xiaomi Max can basically run smoothly after the game starts, except that there is occasionally a jam when the game is opened.

　　 However, there is also a problem here. When the NBA 2K16 game is in progress, the system will force one big core to go offline, instead of allowing all six cores to open, which may also be the reason why the game started with Carton. Maybe Xiaomi's original intention is to better control power consumption.

　　 However, in terms of heat control, Xiaomi Max did not perform well. After playing NBA 2K16 for half an hour, the temperature in the upper right corner of the screen was close to 45 ℃, which was not ideal. However, thanks to the large size of the mobile phone, the hands can hardly reach the highest part of the heat during the game, which will also give a false impression that the mobile phone is not seriously hot.

　　 Screen performance: large screen visual enjoyment

　　 six point four four I just want to tell you how big the screen is. Holding it in your hand is really like what Mary said. It's good to enjoy the cool under the big screen. It is absolutely a good artifact to cover the sun when the sun is dazzling. Of course, the biggest feeling that the 6.44-inch screen brings to me is the visual impact. But when you browse the web and watch movies, you can't expect your mobile phone to be as big as the computer screen. When we play games, we also hope that we hold a tablet instead of a mobile phone.

　　 six point four four Compared with the previous largest Xiaomi phone, Xiaomi Note, the Xiaomi Max is still a circle larger. With the optimization of MIUI, a larger screen is not only a stretch of the whole screen, but also has a larger vision than a small screen. When browsing the web, things seen on the same screen are more abundant, which truly realizes the advantages of a large screen.

　　 1080P When used on a 6.44-inch screen, the ppi is 342, and the particles on the screen cannot be seen by the naked eye. Although the 72% NTSC color gamut is not prominent, the display effect of the whole screen is good, and the screen color rendition and visual angle are satisfactory.

　　 The larger the screen, the more powerful the picture is, and the rich details of the picture are more moving. The large screen is also convenient for two people to watch together, and share happiness with friends on the journey or on the subway. If you want to watch movies and American dramas anytime and anywhere, Xiaomi Max is really a good choice.

　　 The battlefield is as big as the screen. The screen is bigger, the game scene is more magnificent, the operation is more accurate, and the upgrade is not afraid of easy mistakes. Although he did not realize that after Mr. Lei used Xiaomi Max, the achievements of the royal war rose sharply, but for game players, they did not care that their mobile phones could be larger.

　　 Of course, the only thing that bothers people about this screen is the big black edge. When did Xiaomi follow the example of a friend to create a black edge that can run horses? It really made people feel uncomfortable and comfortable, or even without personality. Of course, due to the radian of 2.5D glass and the large size of 6.44, the actual use of this black edge can be ignored, except for Virgo.

　　 Endurance: one of the best smartphones

　　 The screen is so large, how large a battery should be equipped for it? The answer given by Xiaomi is that a 4850mAh battery is directly pressed on the Max. Combined with the low power consumption performance of Snapdragon 650 and the power saving optimization of MIUI system, the standby time and endurance time are greatly improved. As a deep player who was once tortured by the endurance of the top version of "Jihuang" Xiaomi Note, when do I need to plug in and charge nearly 30 to 40 batteries before going to bed, or how can I use up this battery.

　　 Charging efficiency: It is reasonable to say that Snapdragon 650/652 supports Qualcomm's Quick Charge technology, but Xiaomi doesn't know that because of the cost, it equipped a broken saddle for a good horse, but only provided a 5V2A charging head. The measured 1 to 100% charging time was close to 3.5 hours. The author tried to charge the top version of the Xiaomi Note with its fast charging head, and was surprised to find that the Xiaomi Max actually supports Quick Charge 2.0. Although there is a gap between the charging efficiency of the current Quick Charge 3.0 and that of the current Quick Charge 3.0, it only takes 1 hour and 50 minutes for 1 to 90% charging. After 90% charging, the charging efficiency decreases, and it takes about 2 hours and a half to fully charge, nearly an hour faster than the original 5V 2A charging head. Of course, because of the guarantee of high endurance, why care about charging efficiency? 　

　　 System function: the latest stable version of MIUI7 suspension ball is added with the factory

　　 Xiaomi Max is equipped with the latest version of MIUI7 system, and does not use MIUI8 system. Of course, MIUI8 has been publicly tested, and it is believed that a stable version will be released soon.

　　 MIUI7 The system is very familiar. I will not repeat the basic functions, but mainly talk about the experience of the MIUI system under the large screen. The levitation ball function added by Xiaomi Max is not like the AssistiveTouch of iPhone, but only to reduce the use frequency of the Home button and the volume keys on both sides. In fact, it is a combination of click and gesture operations, specifically designed for Xiaomi Max with a large screen. By sliding in different directions, you can perform various operations such as return, screen capture, and one key lock. These functions can be customized, which is very convenient for large screens.

　　 In comparison, the original one handed mode of MIUI is more awkward. Although the one handed mode can achieve one handed operation by reducing the screen size, the three virtual keys of Xiaomi Max are still needed for operations such as returning, and the distance between keys is far, so the operation is still tiring. Of course, if the suspension ball is combined, the operation will be much smoother.

　　 Camera performance: acceptable in the daytime, disappointing at night

　　 Xiaomi Max adopts a 1600W pixel rear camera, which supports phase focusing. The measured focusing speed is satisfactory. What is the performance of this camera? Let's take a look at the sample first. The photo has not been modified except for the size.

Xiaomi Max daytime outdoor sample

　　 In the actual shooting process, when the light is sufficient in the daytime, the color restoration of Xiaomi Max's camera is more realistic, the white balance control is also in place, and there is no obvious deviation problem. The 16 megapixel lens is remarkable in terms of delicacy.

Xiaomi Max Macro Sample

　　 In terms of macro performance, thanks to the large aperture of F2.0, Xiaomi Max can bring good depth of field performance. At the same time, the color accuracy and white balance are well controlled. However, there is still a common problem of Xiaomi mobile phones since Xiaomi 3, that is, the micro focus is far away.

Xiaomi Max Night Shooting Sample

　　 With regard to the current development of mobile phone cameras, it is difficult to draw too much distance in the daytime with sufficient light. The performance of a good camera in dark light at night will be the factor determining whether this mobile camera is good enough. On the whole, the performance of Xiaomi Max, as a price point, is a bit disappointing. When the brightness of the photo is not high, the image is noisy. If the environment is slightly dark, the details will be lost seriously and the feeling of smearing will be heavy. It is also often impossible to focus. Without optical anti shake, the film is easy to blur.

　　 Conclusion: Big and lasting, why not

　　 It may be that many people have different answers to the question of how large the mobile phone screen is the most appropriate. But I believe that for the vast majority of people, there is no way to resist the impact of the big screen theory on visual entertainment. People who do not like it are simply confused about the screen being too large to fit into their pockets. As the largest mobile phone under Xiaomi, the Xiaomi Max may not become an arcade when it comes out like the Xiaomi mobile phone in the impression, but it will also get a lot of traffic for its large screen, which can bring a pleasant experience in games and videos, its incredible endurance, and its outstanding performance of Snapdragon 650 and other hardware displays.

　　 As a Xiaomi series mobile phone, Max has some details that are more like the large screen version of Hongmi Note, such as the "MI" logo on the top of the screen sold, the three-stage metal+plastic back cover design with less exquisite workmanship, and the lack of functions of Type ­ C and NFC. Maybe it is more appropriate to call it Hongmi Max.