At the media conference on September 22, Xiaomi released its long publicized Xiaomi mobile phone 4c, which was upgraded to Snapdragon 808 on the basis of Xiaomi mobile phone 4i. At the same time, it introduced USB Type-C, All Netcom 2.0 and other features. Without delay, follow us to experience the charm of "Android Little Prince":

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Attachment: Xiaomi mobile phone 4c master

The design style of the mobile phone is somewhat similar to that of the red rice Note2, but because the screen size is only 5 inches, the size is much smaller.

There are still some necessary information signs on the back and protective stickers on the lens.

Xiaomi mobile phone 4c also has "off screen aesthetics", which uses a full fit screen.

The dot matrix on the touch screen is obvious.

The earpiece adopts the groove design and is small in size. On the left side of the earpiece is the distance sensor and light sensor, on the right side is the 5 megapixel front camera, and on the far right is the LED signal light.

Continuing the style of previous products, the Xiaomi 4c still has three touch buttons. By default, it will emit a white backlight. The functions are multi task key, home key and return key. The functions of the buttons support customization.

The color saturation of Xiaomi mobile phone 4c is high, and the official claim is that it reaches 95% NTSC color gamut (consistent with the parameters of Xiaomi 4 produced in 2015). The high color gamut of the screen is also the continuation of Xiaomi 4, Xiaomi Note and other products.

There is a slight light leak at the top of the screen.

The rear cover adopts an integrated design. The rear cover is matte and has an anti oil coating. The speaker is also placed on the back of the body.

In the camera part, the Xiaomi mobile phone 4c adopts Sony IMX258 or Samsung S5K3M2 sensor. The former is an improved version of IMX214, mainly adding phase focusing, while the latter supports Samsung ISOCELL technology, and also supports phase focusing. In addition, Xiaomi mobile phone 4c also uses 5P lenses and dual color temperature fill light

On the right side of the fuselage are the volume key and power key.

The SIM card slot is on the left side of the fuselage, which can be easily opened with the attached card needle.

Two micro SIM cards are supported. Xiaomi named Xiaomi's mobile phone 4c "All Netcom 2.0", which allows the simultaneous insertion of a telecommunications card and a mobile/Unicom card, and both of them can support 4G networks.

There is a 3.5mm headphone connector on the top of the fuselage, and there is an infrared sensor that even Xiaomi Note does not have.

At the bottom are USB Type-C interface and call microphone.

system

The machine we got has been pre painted with MIUI7 development version, which is also the most complete in terms of functions, while the shipped version still uses MIUI6, which is the same as that of Hongmi Note2. The system used by Xiaomi 4c is based on the latest Android 5.1.1.

We won't introduce MIUI7 any more. Let's take a look at some new features on Xiaomi mobile phone 4c.

The Xiaomi mobile phone 4c still supports the color temperature adjustment of the screen, but the adjustment has only three gears: warm color, natural color and cold color. The adjustment span is slightly large.

Xiaomi mobile phone 4c has an infrared sensor on the top of the body, which can let the mobile phone replace the remote control, and it is very convenient to use.

Double click wake-up can be said to be a function that rice noodles look forward to "looking forward to the stars and the moon". In fact, it is not difficult to realize this function, but it is said that Xiaomi made great efforts in power consumption to add this function.

The biggest innovative function of Xiaomi's 4c mobile phone can be said to be the edge touch technology. When we click or double-click the phone border, we can realize the return or shutter operation. The specific implementation method is that in the global state, as long as we tap the phone border twice, we can realize the return function, which can basically replace the return touch key function. After entering the camera, we can also realize the shutter function by clicking the frame.

In the setting of edge touch, we can see the schematic diagram of the touch range, covering the left and right borders of the phone. At the same time, we can customize whether to enable the edge touch function.

performance

Xiaomi mobile phone 4c uses Qualcomm's top Snapdragon 808 processor, which consists of dual core Cortex-A57 1824MHz and quad core Cortex-A53 1440MHz, a 64 bit six core architecture, a 20nm process, an Adreno 418 graphics processor, dual channel LPDDR3 933MHz, and a memory bandwidth of 14.9GB/s (the same as Snapdragon 801 MSM8974AC). From the "book" point of view, it is much weaker than the Snapdragon 810. Of course, the heat and power consumption will not be so impressive. Snapdragon 808 is not widely used on mobile phones. Before that, there were LG G4 Moto X Style、 360 Qiku flagship, Samsung G9198 and other products. The Xiaomi 4c mobile phone uses this high-end SoC with 1080P, which can be said to be enough.

The graphics processor of Snapdragon 808 is Adreno 418, with 128 ALUs (192 Adreno 430 of Snapdragon 810), frequency of 600MHz, and performance between Adreno 330 of Snapdragon 801 and Adreno 420 of Snapdragon 805. Xiaomi mobile 4c system is based on Android 5.1.1, GPU driver V103, and supports OpenGL ES 3.1.

In terms of running points, perhaps because the physical fitness of the mobile phone itself is not good enough, or the "posture" is not correct enough, the test machine on our hands can not reach the high score of nearly 58000 that was nominal at the press conference, but this score is quite good for Snapdragon 808.

In daily applications, six cores can be fully opened, and each core is at the highest frequency. When the CPU starts to overheat and reduce frequency for a period of time, one large core will be closed, and the other large core will also be reduced to a lower frequency.

We also use the recently popular "metaphysical curve" to see how smooth Xiaomi mobile phone 4c of Snapdragon 808+1080P is. It can be seen that both system UI and third-party applications have good performance.

photograph

The rear of Xiaomi mobile phone 4c adopts Sony's new stack sensor IMX258 (IMX214 upgraded version, with PDAF phase focusing) and Samsung ISOCELL sensor S5K3M2 (also used on Hongmi Note2, which also supports phase focusing), 13 million pixels, F2.0 aperture, which is mainstream in terms of configuration, while the IMX258 sensor is a new product that we have less contact with.

Since the system of Xiaomi 4c has blocked the cit mode of viewing hardware information, we checked the sensor status of our Xiaomi 4c through the command. By this way, we judged that this batch of Xiaomi 4c used the IMX258 sensor.

In addition, we used the same way to view the screen panel, and found that our mobile phone used Sharp's screen panel instead of LG, Youda or even Tianma's screen panel.

Back to the photo taking and photo taking interface, the Xiaomi 4c phone is not very different from the Xiaomi Note, which is still a familiar way of use. However, due to the introduction of edge touch, we can use the touch phone frame to press the "shutter" operation. In the picture, pay attention to the small white dot in the upper left corner of the camera, which is the location prompt of edge touch.

In addition, perhaps due to the product positioning, the Xiaomi 4c does not support 4K video capture, and the maximum support is 1080P.

Finally, let's take a look at the imaging comparison between Xiaomi mobile phone 4c and iPhone 6 Plus:

Xiaomi mobile phone 4c sample (click to view the large picture)

Sample of iPhone 6 Plus (click to view the large picture)

Xiaomi mobile phone 4c sample (click to view the large picture)

Sample of iPhone 6 Plus (click to view the large picture)

"All Netcom 2.0" and others

Xiaomi mobile phone 4c supports dual cards and dual standby, and uses "All Netcom 2.0", that is, after inserting a telecom card, another mobile/Unicom card can still access 4G/3G Internet, a function that has never been seen before.

In addition, here is an introduction to the "Let Me Go" phone card of Xiaomi Mobile released at the same time with Xiaomi Mobile 4c. It uses the Unicom system (WCDMA and FDD-LTE), no monthly fee, 0.1 yuan/MB for Internet access, 0.1 yuan/minute for calls, and 0.1 yuan/message.

The SIM card of Xiaomi Mobile has two card holders, that is, all mobile phones use it without cutting the card.

Here, we insert Xiaomi Mobile's Renwoxing card into card 1, and insert China Telecom card into card 2. Card 1 can still access 4G Internet. At the same time, we can select which card is used for Internet access in the settings.

Summary

The Xiaomi 4c mobile phone is a "price butcher" for many mobile phone brands, especially for the SoC Xiaolong 808, which has raised the price of its mobile phone to 1299 yuan, highlighting the cost performance of the Xiaomi 4c mobile phone. As for the mobile phone itself, its excellent smoothness, support of All Netcom 2.0, edge touch and other functions are its selling points. The Xiaomi 4c mobile phone is really a good choice for users who have demand for performance and network, but also pursue cost performance. For more introduction and related tests of Xiaomi mobile phone 4c, please pay attention to our subsequent detailed evaluation.