Alcatel pixi 4 with screen 5 description. Wi-Fi is a technology that provides wireless communication for transmitting data over close distances between different devices

The line of affordable Alcatel PIXI smartphones has been replenished with new models. Alcatel PIXI 4 received two variations with 5" and 6" screens. Today we will look at a five-inch gadget and find out whether the PIXI line has been released on new level or not.

Specifications

• Screen: 5", TFT-TN, 16 million colors, 854×480 pixels; capacitive;
• Operating system: Android 6.0 Marshmallow;
• Processor: MediaTek MT6735M, Cortex-A53, 4 x 1 GHz;
• GPU: Mali-T720;
• RAM: 1 GB;
• Built-in memory: 8 GB, support for microSD memory cards up to 32 GB;
• Cameras: Main 8 MP – flash, digital. zoom, fixed focus,
  front 5 MP – flash, digital. zoom, fixed focus;
• Video recording: main camera: 1280 x 720, 30 fps, EIS,
  front camera: 640 x 480, EIS;
• Battery: Li-Ion 2000 mAh;
• Dimensions: 151 x 72.5 x 9.5 mm;
• Weight: 169 g;
• SIM slots: 2 microSIM/microSIM Dual-Standby;
• Communication: GSM: 850/900/1800/1900,
  UMTS: 850/900/1900/2100,
  FDD LTE B1/3/7/8/20/28A,
  EDGE HSPA+: Down - 42 Mbit/s, Up – 11 Mbit/s,
  4G LTE Cat 4:Down - 150 Mbit/s, Up – 50 Mbit/s,
  GPRS, EDGE,
  WIFI: 802.11 b/g/n 2.4 GHz,
  Bluetooth 4.0, GPS;
• Sensors: proximity, accelerometer.
• Available colors: white, dark gray, silver, blue, orange.

Equipment

Alcatel PIXI 4 comes in a compact cardboard box white-blue color with bright design.

On the front side there is an image of the smartphone, the company logo and the model name.

Printed on the left side legal information about the trademark on different languages.

The opposite side lists the main technical characteristics of the gadget and shows Polaroid-type photographs demonstrating the presence this mode on the phone (more about it in the “Camera” section).

On the small edges the Alcatel logo is minimalistically “flaunted” and brief information about the device: model code, IMEI, supported communication standards, etc.

Inside the box, in addition to the device itself, there are: a 5V 550mA power adapter, a 1m long micro-USB cable for connecting to a PC, a “Getting Started” leaflet, a booklet with information about safety measures and warranty conditions, a warranty card and in-ear headphones.

Appearance

The material from which the smartphone body and back panel are made is plastic.

The front side is also covered with plastic. Above the screen there is a flash, earpiece, front camera and notification light.

At the bottom there are touch buttons “back”, “home”, “menu”. The response is fast, but they are not highlighted.

Back cover, as mentioned earlier, is made of plastic and has holes for the camera and flash. It opens very difficult and with a characteristic crack, which creates the feeling that it is about to break.

Under rear panel There is a 2000 mAh battery, two microSIM slots and a slot for a microSD memory card. A design feature is that the slot for the second SIM card and for the memory card are independent, while in order to insert or remove a SIM card from the first slot, you need to remove the battery.

On the top edge of the smartphone there is a 3.5 mm jack and a microphone.

On the right side are physical buttons power and volume control, and the power key is located higher, which makes it extremely inconvenient to use.

At the bottom there is a micro-USB connector and a second microphone.

Accordingly, there is nothing on the left side of the device.

The small screen diagonal, in terms of modern trends, the average thickness of the gadget and the slight roundness of the back cover make the PIXI 4 comfortable to hold in your hand during use.

Display

Alcatel PIXI 4 is equipped with a 5-inch TFT-TN display with the ability to display 16 million colors. Color rendering is satisfactory. This is explained by the type of matrix, which slightly “darkens” the colors.
Screen brightness is low. It is almost impossible to use the phone outdoors. “Adding fuel to the fire” is the plastic coating, which not only glares wildly even indoors, but also significantly narrows viewing angles, distorting colors and weakening brightness. In addition, the plastic is pressed when pressed a little harder than usual, leaving specific spots on the matrix.
No oleophobic coating

Multitouch maximum amount recognized touches - 2.

Iron

The smartphone runs on a processor with a 64-bit MediaTek MT6735M structure, four ARM Cortex-A53 cores with a frequency of 1 GHz. The main differences from the MT6735 are a lower clock frequency, resulting in the ability to “curb” displays with a maximum resolution of 720p, but also more economical power consumption.

The Mali-T720 chip is responsible for the graphics, which, as you know, does not claim to be high-performance. Graphics tests prove this once again. In 3D Mark, the recommended tests on OpenGL ES 3 with resolutions higher than 1080p did not even run.

The games show all the typical performance flaws: the image is unclear, the textures have a “staircase”. Some applications experience stuttering for a few seconds after loading.

The amount of RAM is 1 GB - the minimum for basic functions gadget. In everyday use, the average load is 65-70%

An interesting situation has arisen with internal memory. Of the declared 8 GB, 4.23 GB are available according to the “Device Memory” section in the phone settings, or 3.6 GB according to the manufacturer’s official website. In fact, the user will encounter a shortage after installing the main set of applications. If desired (which will definitely arise), the memory can be expanded using a microSD card up to 32 GB.

The sensor responsible for rotating the screen is very sensitive, which is why the image on the display rotates at the slightest vibration, even when the smartphone lies motionless on the table.

Software

Alcatel PIXI 4 runs a mobile operating system Android systems 6.0 Marshmallow. From nice additions from the manufacturing company can be called a panel quick access on the lock screen and the ability to zoom in on images in the gallery and the camera frame with one finger. The main menu sorts applications into alphabetical order and it seems that this cannot be changed.

Sound

In the presented gadget, the main speaker is constantly directed towards the user, since it is placed in the place of the earpiece speaker and is such. The design is made with fine perforation, as a result of which the sound hardly “breaks through”. This explains the rather low figures maximum volume emitted noise - 66.7 dB.

The smartphone comes with headphones, the quality of which does not imply long and intensive use.

Connection

Considering that the earpiece is the main one, the call quality is at a decent level. The interlocutor can be heard well even in a noisy environment, and he, in turn, also hears well - noise reduction works.
I'm glad that there is a 4G module and that it works. The signal quality depends on the LTE coverage area of ​​the telecom operator.
Wi-Fi module Picks up the signal well, without interruptions.

Installed in a smartphone GPS module cannot be called strong: in 18 seconds of the test, only 12 satellites came into view, 9 of which were directly used.

Battery

The phone is equipped lithium-ion battery capacity 2000 mAh. When tested with a new battery test from Treshbox, the gadget lasted only 6 hours 36 minutes with Wi-Fi turned on, brightness level 50% and with one SIM card installed.

Camera

The main camera takes photos with a resolution of up to 8 megapixels. There is a single-tone flash, but there is no autofocus.

There is HDR technology, white balance and ISO adjustment, flicker reduction, face detection, automatic shutter release when a smile is detected, etc. Available modes: Normal, Panorama, QR Scanner, Polaroid, Auto Retouch.

The front camera takes pictures with a maximum size of 5 megapixels. Equipped with a flash. Shoots in all modes except panorama and QR scanner.

The Polaroid mode is a set of functions for processing photos: dividing the photo into 2 or 4 parts, 17 filters and 14 frames to choose from, as well as the ability to add text, geotags and dates under the photo.

The main camera shoots video in HD 720p 30 fps, with electronic image stabilization. File type: 3gp

The front camera shoots video with a frame size of 640x480, also with stabilization, also 3gp.

Results and conclusions

In terms of functionality, Alcatel PIXI 4 is not very different from older phones with a rotary dialer. There are essentially only two differences, the first of which is mobility, wireless communication, and the second is some kind of camera, and it is understood that it will not be used often. The inconvenient location of the control buttons on the side, mediocre screen quality and a catastrophic lack of memory spoil general impression from this unit. Regarding the cost of the smartphone, if you buy it on sale from Beeline for 3990 rubles, then in this case the shortcomings described in the review do not hurt the user’s pride so much, because For that kind of money, there are few places where you will find a working, well-assembled device, also with LTE. Besides color palette The back panel is quite diverse. But the price is 7500 rubles. for a “pure” PIXI 4 it can produce the exact opposite effect to the one described above.

Pros:

• Big screen
• LTE support
• Price (subject to special conditions)
• Front camera with flash
• Polaroid mode

Minuses:

• Lack of autofocus even on the main camera
• Quiet main speaker combined with conversational speaker
• Mediocre image quality of both cameras
• Inconvenient location of the power button
• Screen quality leaves much to be desired
• Very little internal memory
• Weak battery

Today we have at our disposal the Alcatel Pixi 4 (5045D) smartphone. This device is one of the cheapest on Russian market with LTE support. We found out how convenient and practical the device turned out to be during a long user test.

With the growth of 4G coverage in different regions of Russia, subscribers are increasingly looking at devices that support high-speed mobile Internet. For obvious reasons, models with low prices attract more attention. It was all the more interesting to get an Alcatel Pixi 4 smartphone with a 5-inch screen for testing, which at a low cost promises rich functionality, adequate performance and Mobile Internet at speeds up to 150 Mbit/s. How he pleased and upset us, read on.

Technical characteristics of Alcatel Pixi 4

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Characteristic	Description
Case materials:	Plastic
Operating system:	Android 6.0 Marshmallow
Screen:	TFT-TN touchscreen, 5-inch diagonal, resolution 480x854 pixels (196 ppi)
CPU:	quad-core MediaTek MT6735M with clock frequency 1.0 GHz
GPU:	ARM Mali-T720M
RAM:	1 GB
Flash memory:	8 GB built-in (4 GB available) + microSD memory card slot
SIM card type:	Two microSIM, but only one SIM card can work with 4G
Mobile connection:	EDGE/GPRS/GSM (850, 900, 1800, 1900 MHz), WCDMA (850/900/1900/2100 MHz), LTE Cat.4 (150/50 Mbit/s)
Communications:	Wi-Fi 802.11 a/b/g/n, Bluetooth 4.0, microUSB connector for charging/sync (USB 2.0), 3.5 mm for headset
Navigation:	GPS, AGPS
Sensors:	Light sensor, proximity sensor, accelerometer/gyroscope
Main camera:	8 megapixels without autofocus, LED flash
Front-camera:	5 megapixels without autofocus, LED flash
Battery:	removable, 2000 mAh
Dimensions, weight:	140.7 x 72.5 x 9.5 mm, 169 g

Delivery package and first impressions

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Alcatel Pixi 4 (5045D) comes in a thick cardboard box white. The packaging contains an image of the smartphone, its name, as well as the main parameters.

In addition to the smartphone itself, the box contains a synchronization cable and USB charging- microUSB, power adapter, wired headset, instructions and warranty card.

Taking it out of the package, you notice that the device is quite heavy - 169 grams. At the same time, the dimensions are quite typical for devices with a 5-inch screen - 140.7 x 72.5 x 9.5 mm.

Despite the fact that the device fits in the palm of your hand, it is difficult to reach the edges of the display with one hand. You have to use your second hand or intercept. At the same time, the device can be carried in the pocket of trousers, jeans, jacket or shirt. The only thing is that at first you feel quite a lot of weight of the tube, but over time you get used to it.

Design and appearance

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The appearance of Alcatel Pixi 4 (5) is ordinary. An ordinary rectangular block with rounded corners, made of hard plastic. The plastic on the sides and back is matte, the front part is glossy. Fingerprints, dust and other traces instantly appear on the gloss. As for the stability of the plastic that covers the screen, abrasions and light scratches appear after 5-6 days.

The build of the device is surprisingly good. The back cover is attached tightly. There are no cracks, no crunching or creaking noises have appeared in two weeks. On sale you can find five color options for the case: completely black, black with a blue back cover, black with a silver cover, black with an orange cover and completely white. On my test I had a completely even option.

Now what and where is this device located. On the front you can see a 5-inch screen covered with transparent plastic. There is no oleophobic coating, as I noted above. Well, to combat fingerprints, any available means are suitable - napkins, scarves, etc.

There is a speaker above the screen for telephone conversations and also for external calls and sounds. Its volume is enough to communicate in a noisy room or on the road. There is a front-facing camera in the upper right corner, as well as a dot LED. On the left is a flash for selfies. It is automatically activated when working with the front camera.

Below the screen there are three standard buttons for controlling the menu and operating system of the device. They are not backlit, which makes working in the dark difficult.

The power and screen lock button, as well as the screen adjustment key, are located on the right side of the smartphone. At the top you can see a microphone, as well as a hole for connecting a wired headset. On the bottom right side there is a microphone and a microUSB connector.

On the back side you can see an 8 megapixel camera lens without autofocus, but with an LED flash.

The battery cover is attached securely. In order to remove it, there is a recess in the lower right corner. Under the cover you can see a lithium-ion battery, two slots for microSIM-sized SIM cards, as well as a slot for microSD memory cards.

Screen. Graphics capabilities

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Cheap smartphones try to save on everything. In the case of Alcatel Pixi 4, the “victim” of savings was the screen. A TFT-TN matrix with a diagonal of 5 inches, a resolution of 480x854 (196 ppi) is installed here; upon careful examination, individual pixels are visible. What’s most interesting is that this does not prevent the picture from looking quite alive and bright. Yes, the viewing angles here are not high, the display fades and glares a lot in the sun, but the colors are decent.

Another plus of such a budget screen is that it consumes a small amount of energy, which has a positive effect on time battery life.

The sensitivity of the display is sufficient for comfortable work. Recognition of two clicks is supported at the same time.

Hardware platform: processor, memory, performance

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Alcatel Pixi 4 (5) is equipped with a MediaTek MT6735M chip with a quad-core processor: 4 cores of 1.0 GHz. Graphics subsystem - Mali-T720M. RAM 1 GB, built-in flash memory - 8 GB. 4 GB is available to the user. MicroSD memory cards up to 32 GB are supported.

Basic programs and the operating system interface work very quickly. Of course, not like in more expensive models, but applications launch within a couple of seconds. The response after pressing the screen is also comfortable. There is no lag. Games are much slower, as is the browser when there are 6-8 tabs open. If you launch any application at this time, it will also slow down for the first seconds. In general, the behavior of a budget chip and a small amount of RAM is normal.

To sum up the hardware, I would like to note that it is sufficient for most users. For an undemanding user, the operating speed will be comfortable.

Communication capabilities

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Alcatel Pixi 4 has two slots for micro SIM cards. The gadget has only one radio module, and if any activity appears on one of the cards, the second one will become temporarily unavailable - the classic implementation of a “dual SIM” smartphone.

It is assumed that with one of the cards the user will make calls, send messages and use 3G Internet (the slot does not support 4G), and with the other, everything will be the same, but with 4G support. It’s worth remembering this and not being surprised if, for one reason or another, the smartphone does not see LTE network. By the way, the slot with 4G support is “locked” for Beeline, the second one is without restrictions. In order to remove the SIM-lock, you need to visit the Beeline salon and write an application. The unlock code is usually sent within a few days.

Working with SIM cards is implemented in the most in a simple way: After installing both SIM cards in the device, the smartphone will offer to assign which one to call, send messages and access the Internet with. To change the assignment of slots, cards do not need to be swapped - this can be done directly from the phone menu.

The smartphone supports all modern communication networks: 2G/3G and 4G on Russian frequencies, reliably receives the signal and does not lose it for no apparent reason. The device supports the LTE Cat standard. 4 with a maximum theoretical data reception speed of 150 Mbit/s, upload speed - 50 Mbit/s. During test measurements, Alcatel Pixi 4 on the Beeline network in Yekaterinburg showed speeds of 35 Mbit/s.

Talking on the phone is not always comfortable. The speaker has a small volume reserve. In noisy places it is quite difficult to understand the words of the interlocutor even at maximum volume.

The device can work with all modern wireless networks. Among them are Wi-Fi 802.11 b/g/n (2.5 GHz), Bluetooth version 4.0. All modules work quickly and without failures.

The smartphone supports Wi-Fi Direct, you can organize wireless point access via Wi-Fi channels or Bluetooth. Eat USB connector 2.0.

Among the additional communication tools, it is worth noting GPS, A-GPS (standard cartography is built into the smartphone Google Maps). The navigation error radius during testing was about 3 meters, which is very little. The gadget copes well with the role of a navigator. True, it does not work for long - about 2.5 hours in navigation mode

Duration of work

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The smartphone has a 2000 mAh lithium-ion battery. Under testing conditions, with a number of calls of 35-40 minutes per day, browsing the Internet for about 2 hours via 4G, listening to an mp3 player through a headset for about 2 hours a day, the device worked for 27 hours. When watching video, the Alcatel Pixi 4 (5045D) worked for 5 hours, in navigator mode - 2 hours 35 minutes. As a result, the device has to be charged every day. If you use the smartphone in a less intensive mode, it will work for 2 days.

In terms of autonomy, the device is no different from the vast majority of cheap Android smartphones.

From the included charger accumulator battery Charges in about 4.5 hours. The reason for this is the current of 550 mA. If you use a charger with a current of 1 A, the charging speed is reduced by almost half. This is worth remembering.

User Interface and Operating System

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Alcatel Pixi 4 (5045D) runs Android 6.0 Marshmallow operating system. Some nice additions from the manufacturer include a quick access panel on the lock screen and the ability to zoom in on images in the gallery and the camera frame with one finger. The main menu sorts apps alphabetically and there doesn't seem to be any way to change this.

Among the preinstalled applications there are standard applications for the manufacturer: free messengers Viber, WhatsApp, Evernote, ES Explorer, Opera browser, Shazam, Facebook, Instagram, Skype, Twitter, Clean Master. There are a couple of games.

Camera. Photo and video capabilities

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The photo capabilities of the Alcatel Pixi 4 are quite poor. The main camera is 8 megapixels without autofocus, there is a flash. The interface for working with the camera is standard for Android 6. The settings include HDR technology, white balance and ISO, flicker reduction, face recognition, automatic shutter release when a smile is detected, etc. Available modes: Normal, Panorama, QR Scanner, Polaroid, Auto Retouch.

In bright light the picture is more or less adequate. But as photographing conditions worsen, “grain”, blurriness, and inadequate colors begin to appear in the image.

The main camera shoots video in HD 720p 30 fps, with electronic image stabilization. Files are written in 3gp format. The recording quality is much below average.

On the front of the smartphone there is a 5 megapixel front camera. It also doesn't have autofocus. It shoots in all modes, except panorama and QR scanner, and also records video with a resolution of 640x480, also with stabilization. The camera is suitable for video calls, but for the rest it is unlikely.

Results

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The main advantage of Alcatel Pixi 4 (5045D) is 4G support. Mobile Internet works quickly and efficiently. Otherwise, the device is a typical representative of the budget class.

You can note the large 5-inch screen. But the trouble is that in the sun the information on it is practically indistinguishable. Battery life is average or slightly below average. It seemed strange that the original charger charges the smartphone battery in only 4.5 hours. Alternative memory devices can do this twice as fast.

The disadvantages include the lack of computing power when running productive mobile games, a frankly modest-quality main camera that does not have autofocus. I wasn't pleased with the speaker either. In noisy places, the caller's voice is difficult to understand.

If you need a simple and affordable smartphone with LTE, then the Alcatel Pixi 4 (5045D) may well meet your expectations. It can easily be turned into a point Wi-Fi access, as well as go online and view light multimedia content. If you need an affordable device with advanced phone features, a good camera and big time battery life, Alcatel Pixi 4 is not the best option.

Advantages

LTE support

High quality build

Dual SIM support

Flaws

Quiet speaker

The screen goes blind in the sun

Both cameras do not have autofocus

Not suitable for serious games, not enough processing power

Store ONLINE TRADE.RU is not responsible for the content of product reviews published on the ONLINE TRADE.RU website, since they express the opinion of the author and are not the official opinion of the store and the manufacturer of the product.

Olga , the product was purchased from ONLINE TRADE.RU

Grade:

Review ID: 385376

Usage experience: less than a month

Subject: Review of the product Smartphone Alcatel PIXI 4 Plus Power 5023F Pure White

Advantages: Advantages:
- big screen 5,5"
- 2 SIM cards
- good 8 megapixels. camera, LED flash
- battery 5000 mAh
- the display is bright, the image is clear

Flaws: No shortcomings have been found yet

A comment: I bought the phone for my mother's birthday, I'm very happy with the purchase. Despite its size, it is comfortable to hold in your hand. Convenient menu, fast, normal camera. For this price, the phone is what you need.

Grade:

Review ID: 406650

Usage experience: a few months

Subject:

Advantages: The 5000 mAh battery does not discharge for a long time. The photos come out clear, good quality. Excellent price for such smartphone characteristics. Can charge other electronic devices.

Flaws: Non-removable battery.

A comment: The charge lasts for 4 days for my daughter, and this despite the fact that she is surfing the Internet and Wi-Fi is turned on. I’m already buying a second smartphone like this - for my wife, since her smartphone was completely broken, and she liked this one even when she gave the first one to her daughter. The operating experience is nothing but positive emotions. I recommend.

Grade:

Review ID: 420610

Usage experience: a few months

Subject: Review of Smartphone Alcatel PIXI 4 Plus Power 5023F Volcano Black

Advantages: Huge battery, holds a charge for a week in calls, viewing documents, mail, rarely a camera, viewing photos, browser, WhatsApp. Large, fairly high quality screen. 16 GB of memory.

Flaws: As such, no shortcomings were found after 4 months of use.
For this price - nitpicking: the processor is weak, 1 GB of RAM, the camera is simple, heavy (due to the battery).

Grade:

Review ID: 481180

Usage experience: a few months

Subject: Review of Smartphone Alcatel PIXI 4 Plus Power 5023F Pure White

Advantages: Good phone, my son is very happy, powerful battery, two SIM cards, easy to use (easy to read, play and watch).

Flaws: No

A comment: Overall, the phone is good, it has a really powerful battery and a large screen that is easy to read.
In general, we are satisfied with the purchase; today it is the most budget and powerful phone, although the camera could have been made better.

Grade:

Review ID: 477669

Usage experience: less than a month

Subject: About Smartphone Alcatel PIXI 4 Plus Power 5023F Volcano Black

Advantages: Large, weighty, men's smartphone with big screen. Battery 5000 Ah. The back cover is made of durable plastic, the “bumper” is generally not needed (if your hands don’t shake). The quality of the display and broadcast image is of good quality, bright, rich colors. In general, it takes quite good photographs for its camera (they are completely satisfied with older people who are not picky and not spoiled by iPhones and other expensive toys). Loud call and the audibility of the interlocutor is good - this is the main thing.

Flaws: 1) Non-removable battery.
2) Finding a case and screen film for this smartphone is extremely difficult - they have not been found on sale.
3) Little RAM and internal memory.
4) Price.

A comment: This is a men's phone, as its weight is very significant, due to the fact that the battery occupies almost the entire back part under the cover. The large display, taking into account the maximum zoom of the text, allows older people to easily see everything on the screen without glasses. Phone contents - Not gaming, for normal use(calls, SMS, standard media capabilities). It is recommended to immediately purchase a memory card, otherwise the 4 GB of internal memory available to the user will quickly decrease. As for the programs and applications uploaded there by the manufacturer, to my surprise, there were very few “junk” ones. As I previously indicated, the audibility of the interlocutor during a conversation is good, there are no creaks or wheezing (there were some concerns after reading a number of reviews on the Internet, but in our case, everything is fine). The battery, of course, is a monster, but even with intensive use, it does not allow the phone to work for a week without recharging. On average, every 3 days he will ask to eat) To protect the display, I had to cut out a film myself, thanks to the inexpensive films sold for tablet screens! Recommended for those over 50 - for the transition from archaic push-button phones to modern technologies.

Grade:

Review ID: 469468

Usage experience: a few months

Subject: Review of Smartphone Alcatel PIXI 4 Plus Power 5023F Volcano Black

Advantages: The price is more than reasonable, the powerful 5000mAh battery really holds a charge, the call can be heard from three miles away very good sound. 16 gigs of memory seems like a lot to me, although few people can install a flash drive. Two SIM cards get along quite well together.

Flaws: It slows down and occasionally glitches, but not fatally. Published:

Subject: Review of Smartphone Alcatel PIXI 4 Plus Power 5023F Volcano Black

Advantages: The battery is 5000, holds a charge for a long time, the device is firmly assembled, does not glitch, does not overload, 2 SIM cards work well - they do not lose connection. The red edging on the camera and side buttons gives it a slightly sporty look. The audibility of the reception is good, the interlocutors also hear me well. The camera successfully allows you to take photos of text and, in good light, get acceptable photos of objects. Reputation - the previous big alcatel is broken in circles, but is still alive.

Flaws: Weight and thickness, this smart is not for a light shirt pocket. Don't expect flashy photo shoots from the camera. Otherwise everything is ok.

Manufacturer

operating system

A shell pre-installed on portable devices, including a set of tools for managing resources, functions and applications. On this moment The most common operating systems for modern smartphones and tablets are Apple iOS (only on Apple devices) And Google Android(on devices from most manufacturers). Designed for them greatest number applications. The third most popular is Microsoft platform Windows, which, like Android, is not tied to the manufacturer. BlackBerry devices traditionally use their own OS, and other mobile platforms are extremely rare.

SIM card type

In modern mobile devices With support for cellular communications, three types of SIM cards are used: a standard-sized module mini-SIM, a compact micro-SIM module and the smallest - nano-SIM. All three modules have the same pin arrangement and can be installed in any mobile device that has a SIM card slot. If the dimensions of the slot and SIM card do not match, an adapter is used or the plastic case is cut off. Currently, SIM cards are produced both in the form of a specific type of module and a universal one (Mini or Micro), from which, if necessary, a smaller module is “broken out” using special slots.

Number of SIM cards

OS version as of the start of sales

GSM is a global standard for digital mobile cellular communications, belongs to second generation networks (1G - analog cellular, 3G - broadband digital cellular communication). Telecom operators around the world use one of 4 frequency bands for GSM: in Europe, Asia, Africa, Australia - 900, 1800 or 1900 MHz, and in America and Canada - 850, 1800 or 1900 MHz. A phone that supports only one of the GSM frequency standards will not function in networks of other standards. Currently, the vast majority of manufactured devices are three- and four-band, thanks to which they operate without problems all over the world.

850, 900, 1800, 1900

CPU

CPU

CPU frequency

The processor clock speed shows the maximum number of simple operations that the processor can perform in one second. The higher the frequency, the higher the speed of the device, but such a comparison is only appropriate for processors of the same line, since, in addition to frequency, there are other parameters that affect performance (its architecture, cache size, etc.).

Number of Cores

Modern processor manufacturing technologies make it possible to place more than one core in one package. The more cores, the higher the performance, however, there are other parameters that affect the power of the processor.

Camera

Main camera

The vast majority of modern smartphones and tablets are equipped with cameras for taking photos and videos. This tool is always at hand, thanks to which you can capture important information or catch an interesting moment. The quality of the footage can be roughly determined based on the number of megapixels of the built-in camera matrix. However, due to the impossibility of installing full-fledged optics (lens), which plays one of the key roles for obtaining high-quality image, built-in devices are significantly inferior in characteristics to independent digital cameras.

Front-camera

The number of light-sensitive elements (in millions of pixels - megapixels) that are used to form an image on the camera sensor. The higher the number of megapixels of the matrix, the higher the detail of the image. The front camera is more often used as an addition to the main one; its direct purpose is video communication, which does not require high resolution. For photo and video shooting, the rear camera has a higher resolution.

Multimedia

AAC, AAC+, eAAC, MIDI, MP3, WMA

XVID, H.264, H.263, H.265, VP8

Connectors

Micro-USB is a compact version of the most common data transfer interface, designed for portable devices. Used in most modern smartphones, tablets, e-books, cameras and other portable devices. In 2011, it was approved as a unified standard for charging smartphones, tablets, players and other portable equipment, which allows you to charge the entire fleet of electronics using one cable.

Headphone jack

Nutrition

Battery capacity

Nominal battery capacity- this is the quantity electrical energy, which the battery must have in a charged state. It is measured in milliamp-hours (mAh). The larger the capacity, the longer the device can work without being connected to the mains.

Talk time

Standby time

Screen

Screen diagonal

Traditionally, for all modern devices it is indicated in inches. 1 inch is equal to 2.54 cm. The larger the screen, the more convenient it is to use the device, however, at the same time, the dimensions of the case and power consumption increase.

Horizontal screen resolution

Vertical screen resolution

Screen type

Today, screens for mobile devices are created using LCD technologies, where liquid crystals are used to backlight the matrix, and AMOLED - an active matrix based on organic light-emitting diodes. The design of both matrices uses TFT thin-film transistors.

LCD screens can be divided into two groups: TN and IPS.

TN is the oldest technology for manufacturing TFT matrices. Advantages: low price, short pixel response time. Disadvantages: small viewing angles, inability to get perfect black color, as a result, low contrast, problems with correct color rendering. IN modern devices does not apply.

IPS is characterized by wide viewing angles (178 degrees), the ability to correctly display black color, which has a positive effect on brightness, contrast and color reproduction. LCD displays tend to overcompensate for red tones with muted greens, so the images they produce have a natural color rendition similar to the standard color gamut profile used in photos and videos.

Separately worth noting Retina screen, developed by Apple based IPS matrices. It's so different high density pixels that the human eye is unable to notice that the image consists of them.

"Younger" AMOLED technology has both advantages and disadvantages compared to LCD. Among the undoubted advantages are shorter response times, thinner screens and full viewing angles (180 degrees). Each subpixel of such a matrix has its own backlight, which makes it possible to achieve a wide color gamut, high definition and picture contrast. However, AMOLED's ability to display a wider color scheme often results in oversaturated images and unnatural colors, since the most powerful colors in subpixels are blue and green. The energy consumption of AMOLED screens directly depends on the brightness of the image: to display black colors, the LEDs do not emit light, and when actively working in bright colors, they gradually “burn out” and power consumption increases significantly. The screen structure consists of several layers (matrix, LEDs, transistors), which makes it possible to produce rounded screens.

Touch screen type

Resistive screens are inexpensive to produce and respond to pressing (not touching) with any object: finger, stylus, credit card. When pressed, the conductive layers are mechanically closed (bending of the top layer) and the coordinates of the pressing point are calculated. Disadvantages: light transmission is no more than 85%, they do not support multiple simultaneous touch points, and they are not able to recognize pressure. They are used in budget models of portable devices, often in e-books.

Capacitive touchscreens are the most expensive to produce due to complex electronics for signal processing. Advantages: recognition of multiple touch points (multi-touch), transparency up to 90%. Such screens are more durable, since the top layer is made of glass. Not susceptible to touch with regular gloves (special gloves are now being produced for capacitive screens) or hard objects. Used in most portable devices - smartphones, tablet computers, laptop touchpads.

Inductive screens respond only to a special stylus and are usually used in graphics tablets (art tablets, children's tablets).

Infrared screens work on the following principle: the grid formed by infrared rays is interrupted when the screen is touched by any object. The controller determines the location where the beam was interrupted. They are used more often in e-books.

capacitive

Multi-touch

A technology that allows touch screens to recognize multiple touch points simultaneously. It is especially relevant for providing navigation functions, scaling (moving or spreading fingers), and rotating objects on the screen.

Memory

Built-in memory capacity

Modern portable devices are equipped with drives for storing files and installing applications, implemented in the form of Flash chips. The size of the internal memory is key when choosing portable device, especially if it is not equipped with a slot for installing memory cards.