4 mini evaluation of cool school grand view on the screen
4 mini evaluation of cool school grand view on the screen

If someone asks: How different is the appearance of the Mini phone from the original? You have seen the comparison between the Galaxy S4 mini and the Galaxy S4, and you have thought about the comparison between the HTC One mini and the HTC One. The answer is: very similar! The appearance of the cool school grand view 4 mini will certainly change your mind. At a glance, there is hardly any figure of Grand View 4 on it.

This article is from: Drive Home Suixin

The screen size of Coolpad Grand View 4 is 5.9 inches. The entire front panel is wrapped in metal, which looks very flat. With the white body and the characteristic curve back shell, it presents the characteristics of atmosphere; Take a look at the 4 mini grand view. It has a 4.5 inch medium-sized screen. The front glass panel is high and convex, and it is matched with the black body, presenting a delicate feeling.

In terms of configuration, the Coolpad Grand View 4 mini is equipped with a 4.5 inch 720P screen (On cell technology), a 1.2GHz Marvell 1T88 quad core processor, and a storage combination of 1GB memory+16GB body storage. The rear 1300w and front 200w pixel cameras are equipped with 1730mAh removable batteries. Running CoolLife UI 5.0 system based on Android 4.2, single card configuration, supporting TD-SCDMA system. In terms of price, the official website priced 1999 yuan.

Looking at the parameters alone, this 1.2GHz quad core processor is just so so. How is its actual performance? Is the screen effect of On cell full fit technology+CE2.0 color enhancement technology really comparable to that of AMOLED screen? Is 1GB of memory enough? Can the image quality of the 1300w camera reach the level of the flagship mobile phone? Can the 1730mAh battery support one day? All these questions can be answered in this evaluation.

Comparison of configuration parameters between Coolpad Grand View 4 mini and Coolpad Grand View 4:

Grand view 4 min manual operation, 4.5 "screen single hand operation without pressure

Because of the convex glass panel, the whole body has a crystal clear feeling

Because of the convex glass panel, the whole body has a crystal clear feeling

The rear shell is made of plastic material and polished, with a touch similar to that of the front panel glass.

The earpiece is located at the top center, the 200w pixel camera and sensor are arranged at the left and right respectively, and the "CoolPad" logo is located at the bottom, slightly crowded. If you look closely, you can see the fine diagonal stripes on the border, which has a very strong decoration effect.

The 1300w rear camera is inclined to the upper left corner of the body, and the design scheme of embedding rectangular metal plate can effectively avoid the abrasion of the lens. In the era when metal rings are widely used to wrap the lens, this design undoubtedly makes people look forward to it and makes us look forward to its photographic effect.

There are fine stripes on the back shell, but it doesn't feel concave and convex.

The middle part of the volume key on the left side of the machine body is cut in an arc, which not only brings a sense of beauty, but also makes the key more suitable for the machine body.

Like Daguan 4, Daguan 4mini also provides a mute key, which is arranged in the same position as the iPhone and feels particularly crisp when you move it. The combination of the physical keys and the body is very close, avoiding the shaking of the keys. The measured key travel is moderate, the touch is crisp, and the feedback is full.

The top power button and 3.5mm headphone jack are classified as left and right, and the color matching of the power button is also consistent with the alloy middle frame.

The bottom is the Micro USB interface, the only speaker is located in the lower left corner of the body, and the middle part is Mic.

The edges of the glass panel are very round

Round glass panel

Seen from the corner, it looks like water is spilling out

Comparison between Grand View 4 mini and Grand View 4

Comparison between Grand View 4 mini and Grand View 4

The internal layout is very different from other mobile phones. The SIM card slot and SD card slot are located on the top, and the battery occupies almost half of the space.

The camera is prominent and seems to be attached to the fuselage. Micro SIM card is inserted from the top and supports GSM/TD-SCDMA network systems. The Micro SD card on the right supports up to 32GB expansion.

The thickness of the battery is controlled in place

Detailed battery parameters: 1720mAh, which is a bit awkward

One detail has to be mentioned: I don't know whether the manufacturer intended it or failed in the design. The charging lights of the two mobile phones are located inside the earpiece, and there is a sense of copycat outside.

The Coolpad Grand View 4 mini is equipped with a 4.5 inch 720P IPS screen with a pixel density of 326ppi, which is a typical mid-range screen specification. In addition to size and resolution, Daguan 4 mini is different from Daguan 4 in driving technology and fitting process.

In terms of driving technology (driving the backlight of the control screen), Daguan 4 mini uses LTPS low-temperature polysilicon technology commonly used in flagship models, while Daguan 4's technology is more advanced, using CGS technology, which is an upgraded version of LTPS, and its electronic transition rate reaches three times that of the latter.

In terms of bonding process, there are mainly OGS solutions led by touch screen manufacturers, and On Cell and In Cell solutions led by panel manufacturers.

Comparison of four touch schemes:

1. OGS integrates the touch screen with the protective glass by plating ITO conductive layer on the inside of the protective glass, representing products such as Meizu MX2 and Xiaomi mobile phone 2. If the mobile phone screen using this scheme is broken, the touch will also fail.

2. On Cell embeds the touch screen between the color filter substrate and the polarizer of the display screen. The representative products are Samsung Galaxy S3; The representative is Samsung's Galaxy S3/S4.

3. In Cell embeds the touch sensor into the LCD pixel, representing Apple's iPhone 5/5S.

From top to bottom, each of the three schemes is more advanced than the other, and the production process requirements are becoming higher and higher. Among the three schemes, Daguan 4 adopts the OGS scheme, while Daguan 4 mini adopts the On cell scheme, so the screen of Daguan 4 mini is thinner, only 1.45mm.

Through the above description, we have a more comprehensive understanding of the 4 mini screen of Grand View. Now let's start the screen test.

Let's take a look at some screenshots: 4 mini screen shot of the grand view

4 mini screen shot of the grand view

4 mini screen shot of the grand view

In terms of appearance, although the screen proportion of Daguan 4 mini is lower than that of Daguan 4, its frame is narrower, and the black body is easier to highlight the color of the screen.

The following is the screen comparison test:

Grand View 4 has four color modes that can be adjusted. We choose the "standard" mode to make a more impressive comparison with Grand View 4 mini.

1. Color rendition

The 4 min grand view on the right is obviously more beautiful

Redness

Green reduction degree

Blue reduction

In terms of the reduction degree of the three primary colors, the 4-min Grand View is better, and the color is more pure. Daguan 4 is a little dark.

2. Contrast and light leakage test

Pure white test

Pure black test

In contrast test, the 4 min white of Daguan is more pure, but the performance of pure black is much weaker.

From the above figure, we can also see that the screen light leakage of Daguan 4 is well controlled, and the light leakage is completely controlled at the edge of the screen; However, Daguan 4 mini has weak control over the backlight darkness, resulting in the diffusion of large areas of light leakage.

Again, light leakage has little impact on actual use.

3. Gamma test

The gamma value of the Grand View 4 screen is about 1.8, and the gamma value of the Grand View 4 mini screen is about 2.2.

4. Actual display effect

During the test, the brightness of both phones was adjusted to the maximum. It can be seen that with the help of CE2.0 color enhancement technology, the image of Grand View 4 mini is very bright, while Grand View 4 is more gentle. According to the official, its screen is comparable to the Amoled screen of Samsung mobile phones. From the above analysis and comparison, we can also see that there is some confidence in saying so.

Conclusion: The technology used by the two screens will win or lose each other. If you just look at the display effect, the 4 mini is a little better. The 4.5 inch size is also suitable for daily carrying, but if you use it to watch videos or browse the web, Grand View 4 can turn the tables. After all, the 5.9 inch and 1080P parameters are there.

As a derivative version of Coolpad Grand View 4, Grand View 4mini is also equipped with CoolLife UI 5.0 system based on Android 4.2, so the two phones are very similar not only in desktop UI and interaction logic, but also in built-in functions. The CoolLife UI's classic "three stroke positioning", "waterfall flow" and other functions have been well continued.

On the 5.9-inch screen Grand View 4, CoolLife maintains the design of one row and four columns of icons, so each icon is quite large. But back to the 4 min view, the icons are smaller and more closely arranged. In addition, Grand View 4mini uses color enhancement technology to make the screen more colorful. You can vaguely feel the style of Galaxy interface.

In the evaluation of Daguan 4, we highlighted the "file safe" in the "privacy protection" function, which was castrated in Daguan 4 mini. However, in addition to too many carrier applications (which can be uninstalled), this system is excellent among domestic ROMs in terms of functions, and the "calendar" is the best one I have ever seen (in the scope of calendar provided by the system). Even if it is made into an application separately, it will be very popular with users.

1. Lock screen interface

The unlocking interface adopts the sliding unlocking mode, and there will be prompts when there are phone calls and SMS messages. Move to the prompt to directly enter the relevant applications. Grand View 4 mini does not support sliding at the bottom of the screen to unlock.

When the finger is pressed and slid from the top to the bottom, a lock mark will appear (the right figure above), which will enter the shortcut mode. However, the 4 mini shortcut mode does not support lock screen text editing. In this mode, sliding left will bring up the "Photograph" interface, and sliding right will add "Calendar".

Because the 4.5 inch screen is not difficult for single hand operation, the experience of this design on Grand View 4 mini is better than Grand View 4.

2. Desktop

The desktop icons look the same as Grand View 4, but they are actually redesigned and flatter than before.

With a blue background, square icons with rounded corners, and various colorful decorations, is there any flavor of the Galaxy interface?

The system still adopts the "drawer" design, but the desktop also supports folders, even the Dock bar. Application interface and widget interface

3. Cool show: theme, wallpaper, ringing tone, font

Coolpad Show is a system beautification application exclusive to Coolpad mobile phones. It not only provides a variety of online themes and wallpapers, but also supports the change of system fonts and ringing tones. The most noteworthy is the "Waterfall Stream" news display. After opening, the system will automatically take out a screen of space to display the "Waterfall Stream" news, which is very suitable for making full use of the fragmented time.

The theme and wallpaper are very colorful, which can show the personality well. The measured results show that these new themes have little impact on the smoothness of flow.

CoolLife UI is one of the few systems that support changing system fonts. Ringing tones are mostly intercepted from popular songs and updated in a timely manner. In addition, the download times of fonts and ringtones are marked, and you can select the download according to the popularity.

The display mode of "waterfall flow" makes photos no longer limited to fixed size. This design disrupts the sense of hierarchy, but it is more attractive to browse.

After browsing, it is found that this application provides rich news, including politics, economy, science and technology, sports, psychology and other types. News sources are also extensive and timely. It would be better if future users could customize their subscription columns.

4. Notification Bar and Recent Tasks

The notification bar interface is still very cumbersome. Notifications are divided into two types: "In Progress" and "Notification". The notice in the "In Progress" column cannot be cleared, but you can click the upper triangle to collect it; General notifications can be cleared with one click.

There is a shortcut that is not easy to find, that is, pull down the notification bar with two fingers on the desktop, and all the "shortcut switch" interfaces will be directly displayed (as shown in the right figure above). It is not necessary to click the switch button in the upper right corner of the notification bar again. Recent tasks are presented in the form of thumbnails. According to the memory usage in the upper right corner, 1GB is indeed a little small, and it will be less than 200MB when you move.

5. Settings

By comparing the "setting interface" of the two mobile phones, it can be found that their interfaces are basically the same. However, the Grand View 4 mini is designed with a single SIM card and does not support NFC, C-button and other functions, so it should be concise.

When we enter the second level "setting" interface, the original trace of the 4-minute grand view is undoubtedly revealed. However, Daguan 4 is well handled, realizing the unity with the primary interface.

Even now, there are not many smart phones that provide automatic on-off, because this requires special design and optimization on the bottom layer.

The system version is Android 4.2.1. Coolpad mobile phones will provide OTA upgrade packages from time to time, and some unpleasant functions may be solved in the next version.

6. Dial SMS interface

The four tabs on the top of the dialing interface are designed side by side, which is also the classic interface of Samsung mobile phones, and the flattening is more thorough. The interface is not beautiful, but the functions are complete, including three contacts location and one touch dialing.

The "Harassment Interception" function in the system application "Kubutler" is also integrated into the menu of the dialing interface, which is more convenient to use.

The address book supports "three strokes positioning", of which three strokes are not limited to the first letter of Pinyin. The first letter of all words in the name is displayed on the positioning panel. As long as you click a letter, all qualified contacts will be filtered out.

The SMS interface supports "chat mode" and "folder mode", and the chat mode is similar to the message display mode on mobile phone QQ; The folder mode is the same as the SMS on the function machine in those years.

In addition, the short message interface of CoolLife UI supports the large character mode, which is suitable for the elderly.

1. AV

The built-in player of Coolpad Grand View 4 mini has basically the same functions as Grand View 4, but only the processor can play 1080P video at 30fps. In terms of functions, in addition to supporting screenshots, locking and hovering windows, it also supports dts sound effects, but it does not support putting on large screen devices.

Compared with the video player, the music player has shrunk too much. The most important thing is to cancel "online music".

The playback interface supports full screen posters, as well as list display and lyrics. The layout design and color matching still have certain characteristics.

2. Notepad

Notepad adopts sewn cowhide notebook effect and supports four kinds of materials: text, picture, audio and graffiti. Notes are displayed in a list, which is enough for daily notes.

Click the menu in the upper left corner to see that notes support grouping. Recently, the function of creating a new grouping has been added.

Graffiti supports 8 colors and 5 levels of size adjustment, as well as changing the background of different colors. The actual experience shows that the size of the stroke is fixed, the stroke is slightly delayed, and the imaging quality is OK.

3. Calendar

The calendar of CoolLife UI is an excellent built-in calendar application that the author has seen. It maintains the interface consistency with the aforementioned "notebook".

It is also powerful in function and simple enough.

Like many calendars, it also supports four view modes, with commonly used festivals clearly marked in the month view. It also provides practical applications such as "Countdown Days" and "Date Calculation", as well as two entertainment applications such as "Yellow Calendar" and "Constellation".

Four calendar tools

 

Constellation and reciprocal day interface

Calendar supports the creation of three kinds of schedules, namely "General Schedule", "Meeting Schedule" and "Birthday and Anniversary".

On the left is "General Schedule". The interface is very simple. By default, only three items are provided, namely, title, time and notes. Other ancillary items are hidden; On the right is "Meeting Schedule", adding two items: place and notice. The location supports calling third-party map applications. Click the green button on the right.

The biggest feature of the CoolLife UI calendar is the desktop component, which makes the monthly schedule intuitively displayed on the desktop and will never forget what to do.

Click the location of the day to open the day's schedule, where you can view details and modify the calendar.

4. Cool housekeeper

The CoolLife UI system also provides a "cool butler" application that integrates many security functions, including mobile phone acceleration, privacy space, harassment interception, virus detection, mobile phone anti-theft, power saving management and many other functions. If the requirements for these aspects are not very strict, it is unnecessary to install third-party security applications.

Support package settings and monitoring. The privacy space supports encryption applications and password saving. Unfortunately, the file encryption function has been eliminated.

5. Cloud backup

Grand View 4 mini also supports manual or automatic local backup and cloud backup. The backup content is also very comprehensive, including system settings, contacts, and application and application data.

6. Photo taking interface

All camera settings are concentrated on one button in the upper left corner, which is inconvenient to adjust

Support 5 real-time special effects

"Background removal", "beauty photography", "animation photography" and other playing methods are quite rich

Daguan 4 supports the CDMA2000 system of telecom, while Daguan 4 mini supports the TD-SCDMA system of mobile. The processors it uses are not from NVIDIA, Qualcomm, MediaTek and other manufacturers we are familiar with, but from Marvell.

Marvell 1T88 (PXA1088) has four cores, the main frequency is 1.2GHz, and is based on ARM's Conte-A7 architecture. The advantage of this processor is its good compatibility. It is compatible with the PXA988/PXA986 pin of the dual core single chip unified 3G platform, enabling device partners to upgrade their mobile devices to four cores without adding additional design costs.

Of course, consumers are not interested in its compatibility. They should pay more attention to its performance. Can the parameters of the quad core 1.2GHz MTK6589 outperform those of the quad core 1.2GHz MTK6589? We speak with facts.

Let's look at the device information first:

 

1. Rabbit test:

In the rabbit test, the run score was close to 12K, slightly lower than 13K of MT6589 (quad core 1.2GHz) with the same number of main frequency cores.

Below the score, Anthare gave the evaluation that the CPU performance and graphics performance were average, the memory performance was good, and he could play most small games.

2. NenaMark 2 Test:

Nenamark 2 ran only 30fps in the test, which was basically free of pressure in the face of small and medium-sized games, but large games will be stuck. In the sequel of the game, we will test whether it can run the game "Daily Cool Run".

3. Quadrant test

The quadrant score is 3800, 140 points lower than MT6589, and the performance is quite average.

4. Web page performance test

In the web page performance test, HTML5 scored 1399, better than MT6589; METAL scored 321, with average performance.

From the previous score test, we can see that the performance of Marvell processor equipped with Daguan 4 mini is at the low-end level, which is at the same level as MT6589. Therefore, we don't expect it to run many games, just a small mobile game that we often play.

There was no problem in actually running "Running Cool Everyday". After running for more than ten minutes, I didn't find any stuck phenomenon.

However, the game still indicates that the system is not smooth enough. It can be seen that a game of the scale of "Everyday Parkour" is already the "limit" of the 4-minute grand view. Even if the bigger game can run, it will also appear stuck phenomenon.

In terms of endurance, the battery capacity of Daguan 4 min is only 1720mAh, which is really too little at present. However, Kuhousekeeper provides the function of "power saving management", with two solutions, namely "fast power saving" and "advanced power saving". If you are looking for standby, its performance is hard to say.

There are three modes in "fast power saving", which can be switched by one button.

1. In "Daily Power Consumption" mode, WIFI, vibration and automatic synchronization are turned on;

2. In the "power saving" mode, the above three modes are automatically turned off and the brightness is switched to half;

3. When switching to the "extra long standby" mode, the background program will also be cleaned, the brightness will be almost adjusted to the lowest, and the automatic screen closing time will be adjusted to the shortest.

In "Advanced Power Saving", there are "CPU Intelligent Power Saving" and "Alignment Wakeup" functions. It can be said that Coolpad has also made a lot of efforts to save electricity.

In the actual test, we chose the "daily mode" (the mobile phone is used, what's the value of always being in standby?). When playing video for 30 minutes, the power dropped by 13%, and when we swiped microblog for half an hour, the power dropped by 10%. To sum up, it is no problem to use it normally for a day, and it is necessary to recharge it every day.

Although the 4 mini has shrunk on the screen and processor, it still uses the flagship 1300wBSI stack camera. How about its photo taking effect? Here are some samples.

The strong wind blew overnight, and the air quality was significantly improved, and the PM2.5 value was only 72. From the proof sheet, the sky taken by Daguan 4 mini is very transparent and the picture is very clean.

It can be said that by equipping with a 1300w pixel BSI stack camera, the 4-min photo taking of the Grand View is no less than that of the current flagship mobile phone. I don't believe we can compare another mobile phone:

The above picture is also from a 1300w camera. The sky color is obviously not as bright as the 4 min view, and the exposure is slightly less.

Enlarge the sample to 100%. From the edges and corners of the window and the building, the details of the 4-minute sample of the Grand View are well preserved. The edges are very clear and there is no trace of smearing.

High resolution cameras also retain enough detail

Grand view 4 min photo proof

Grand view 4 min photo proof

Grand view 4 min photo proof

Grand view 4 min photo proof

It can present a certain macro effect

In terms of the night proof, the quality of the Grand View 4 mini is also excellent. Although the light source diffusion (white) is inevitable, there is no situation of light wandering.

When the light in the picture is complex, the 4 min view is still well controlled, ensuring the purity of the picture.

Although the photographing effect is better than Daguan 4, the defect of insufficient metering of Daguan 4 has been inherited. As shown in the above figure, even if the focus of the lens is focused inside the room (the brightest place), the exposure cannot be reduced. Maybe the lens has been using the average metering mode, but the metering mode is not found in the camera settings.

The first time I saw this mobile phone, it really gave me a surprise, because it was the first 4.5 inch mobile phone recently evaluated.

In appearance, the 4.5-inch figure feels good when held in the hand. The glass panel protrudes at the outermost side, which makes you feel crystal clear when looking sideways, but it also weakens the atmosphere created by the metal frame of Daguan 4. The middle frame is also made of aerospace alloy, which not only ensures the stability of the fuselage, but also has a certain finishing effect. The black design helps the body feel more integrated.

In terms of configuration, although it is the mini version of Daguan 4, the author believes that there are some inappropriate choices in terms of hardware reduction. It is normal for the screen to drop from 5.9-inch 1080P to 4.5-inch 720P, and it is said that the camera still uses 1300w pixels. However, the degradation of the processor is too large (due to the system), which causes the CPU to become a bottleneck of the mobile phone. 1GB memory and 16GB body storage are barely enough. Such hardware combination will eventually make it difficult for the mobile phone to become a bucket level device (that is, uneven performance), and the overall experience will also decline.

On the system side, because of the reduction of configuration compared with Grand View 4, it is also reflected in the system functions. The original practical file security box has not been retained, and the music player has also cancelled "online music". NFC、 The car mode and other slightly high-end functions have also been abandoned. Of course, the Grand View 4 mini is very powerful in conventional applications. For example, its notepad supports pictures, audio and graffiti in addition to text; Another example is the built-in calendar application, which not only provides more functions, but also provides more convenient interactive operations. The adaptive desktop components can display a month's schedule, which is self-evident.

On the screen display, the Daguan 4 mini is equipped with a 4.5 inch 720P screen, which is a typical mid-range mobile phone configuration. Through the On cell full fit technology and CE2.0 color enhancement technology, the display effect of the screen is very excellent, which has a tendency to be more colorful. Whether you like it or not depends on your personal preferences. What needs to be mentioned is that the brightness of this screen is very high, the pure black display is not ideal, and there are some light leaks that have no impact on daily use.

In terms of photography, the advantages of Daguan 4 mini in the middle end mobile phones are reflected. With the 1300w pixel BSI back facing camera, the photos taken are comparable to the current flagship mobile phones, with very transparent images and good white balance. In terms of nightscape, the control of light is excellent. If the metering can be adjusted in the future, it will undoubtedly give users a better photo experience.

In terms of endurance, the battery capacity of 1720mAh is really useless now. Although the system provides powerful power saving management, to obtain a longer endurance, you need to turn off WIFI, shake, and automatically synchronize... undoubtedly, it has a great impact on the experience. On the premise of ensuring the experience, the actual measurement can support one day.

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