Sunday, March 6, 2016

Smartphone Samsung Galaxy A5 2016 – iXBT.com

<-! top tools -> <-! /> Icons ->

Content

One year ago, Samsung released an entirely new line of smartphones Galaxy A, including the A3 model, A5 and A7. Unlike the Galaxy S line flagship emphasis here is not on the performance and functionality, and design. The price of Galaxy A model was lower than that of the Galaxy S. In the line beginning in 2016 the tradition was continued by the release of three new models. With the title decided not to philosophize and simply added the notation of the year – 2016

Of the three line models of the most interesting looks average unit:. Galaxy A5 2016. The fact that it combines effective design, with the most versatile screen size (5.2 inches) and low price (about 26 thousand rubles as of this writing, that it is much more attractive than the model A7 2016, not to mention the actual smartphones series S).

We examined the device and tried to figure out what compromises the user will have to go for attractive design and low price.

Let’s look at the new items characteristics.



Specifications Samsung Galaxy A5 2016

  • SoC Exynos 7580 Octa
  • CPU Cortex-A53 @ 1,6 GHz (8 cores)
  • GPU Mali-T720MP2 @ 650 MHz
  • Operating system Android 5.1
  • Touch screen 5,2 “AMOLED, 1920 × 1080 resolution, 424 ppi
  • memory (RAM) 2GB
  • Permanent memory: 16 GB
  • Support for microSD memory cards of up to 128 GB
  • SIM-card: 2 × Micro-SIM
  • Communication GSM / GPRS / EDGE / 3G / LTE
  • Bluetooth 4.0, GPS / a-GPS
  • Wi-Fi 802.11b / g / n
  • GPS with a-GPS, Glonass
  • Camera: 5 megapixel (front) and 13 megapixels (rear) with LED-flash and auto focus, f / 1,9, video recording Full HD
  • Battery: Rechargeable li-polymer 2900 mAh removable
  • Dimensions 144.8 × 71 × 7.3 mm
  • Weight 155 g

For clarity, we decided to make a table the characteristics of the two competing models from other manufacturers, as well as models of Samsung Galaxy A5 of the first generation to visualize the difference between it and the novelty.

Samsung Galaxy A5 2016 Samsung Galaxy A5 LG Nexus 5X Huawei Honor 5X
Display 5,2″ AMOLED, 1920 × 1080 resolution, 424 ppi 5 “the AMOLED, 720 × 1280, 294 ppi 5,2″ IPS, 1920 × 1080 resolution, 424 ppi 5,5 “, IPS, 1920 × 1152, 401 ppi
SoC (CPU) Exynos 7580 Octa (8 cores Cortex-A53 @ 1,6 GHz) Qualcomm Snapdragon 410 (4 core Cortex-A53 @ 1.2 GHz) Qualcomm Snapdragon 808 (2 core Cortex-A57 @ 1,8 GHz + 4 core Cortex-A53 @ 1,5 GHz) Qualcomm Snapdragon 615 (8 core ARM Cortex-A53 @ 1,5 GHz)
Graphics processor Mali-T720MP2 Adreno 306 Adreno 418 Adreno 405
flash memory 16 GB 16 GB 16/32 GB 16 GB
Connections Micro-USB (with OTG support), 3.5 mm headphone jack Micro -USB, 3.5 mm jack for headphones USB Type C (with support for OTG), 3.5 mm jack for headphones Micro-USB, 3,5 mm jack headphones
Support memory card microSD microSD no microSD
RAM 2 GB 2 GB 2 GB 2/3 GB
Camera rear (13 megapixels; 1080p video), front (5MP) rear (13 megapixels; 1080p video), front (5MP) rear (12.3 MP; 4K video), front ( 5MP) rear (13 megapixels; 1080p video), front (5MP)
LTE Support has has has has
battery capacity (mAh) 2900 2300 2700 3000
Operating system Google Android 5.1 Google Android 4.4 (upgraded to 5.0 ) Google Android 6.0 Google Android 5.1
Dimensions (mm) * 145 × 71 × 7,3 139 × 70 × 6,7 mm 147 × 73 × 7.9 mm 151 × 76 × 8,1
Weight (g) 155 123 136 158
The average price T-13188751 T-12323116 T-12911710 T-13054761
Retail offers Samsung Galaxy A5 2016 L-13188751 -10

* according to official data producers

Progress Samsung Galaxy A5 2016 to compared with last year’s model is clear: a higher resolution display, a newer version of the OS, a powerful SoC. However, against the background of new competitors is no longer looks so attractive. For about the same money you can buy LG Nexus 5X, which offers a more powerful hardware stuffing, USB Type C, 4K video recording, and the latest version of Android. Or – much cheaper Huawei Honor 5X, whose characteristics are generally the same level, and the price at the same time – is much lower (about 17 thousand rubles as of this writing)

However, Samsung Galaxy A5 2016 trump card. – a design so that about it and we’ll talk in more detail

design

Smartphone came to us in bulk, so that on the equipment we tell will not and proceed directly to the device design. . Outside smartphone really makes a good impression. It has a metal chassis and a back cover made of glass. It looks stylish, although it evokes phones Sony Xperia Z. line, however, compared to Sony, there faces are straight and slightly rounded, resulting in a smartphone in the hand more comfortably than the Sony devices with sharp edges.

In the decision on the rear glass lid there is a minus. It is quite easily soiled, which is why after a few minutes of using the device does not look so attractive. Fingerprints (particularly if direct light) can be seen on the back cover immediately. Of course, they can be rubbed away, but you will not do it as consistently

An important advantage of the Galaxy A5 2016 design – a very narrow frame around the screen. This parameter smartphone is much greater than, for example, iPhone 6s Plus, which, when the screen area is only slightly higher than the Galaxy A5 2016 looks considerably more cumbersome.

Unlike its predecessor Samsung Galaxy A5 2016 is equipped with a fingerprint scanner . It is located in the “Home” button. We compared the speed of his work with the iPhone 6s Plus and came to the conclusion that the iPhone 6s Plus fingerprint sensor is still faster.

Continuing the comparison with the iPhone, we note that both the smartphone camera lens performs significantly above the level the back cover. And Samsung is a lot more noticeable as the camera module itself more. As for the effects to be used, the disadvantage of this solution (with the protruding camera) that if the smartphone put on the table, it will not close lying and slightly lifted at the top, as it was under it placed the camera.

Locating connectors and slots standard. On the right side – the power button and a slot for the Nano-SIM card, and microSD. Slot combined, you can use either a Nano-SIM and the microSD one, or two Nano-SIM

On the left side -. Volume buttons. All buttons metal as faces. Pressed moderately elastically

On the bottom -. Grille speaker, microphone, 3.5 mm jack for the headset connector and Micro-USB. And now – with support for OTG (in last year’s model OTG did not)

The upper face contains a hole of another microphone

In general, the smartphone has an impressive and pleasant design, comfortable.. in the hand and is well worth a fashion status. The only problem is the rear surface soiled. This can seriously spoil the impression

Screen

Compared to last year’s model Galaxy A5 screen size has increased from 5 to 5.2 inches.; and increased resolution – from HD to Full HD. Perhaps this is the most balanced combination, so that the benefits of higher resolution at a diagonal are ambiguous, but the disadvantages (shortening of battery life, the need for improved performance …) – no doubt. However, the resolution and screen size – it’s not all the parameters that deserve attention. Extensive Testing Samsung Galaxy A5 2016 held display editor section “Projectors and TV” Alexey Kudryavtsev. Below -. Finally, it

The front of the screen surface is a glass plate with a mirror-smooth surface, resistant to scratches. Judging by the reflection of objects, anti-glare properties of the screen is not worse than the Google Nexus 7 (2013) (hereinafter referred to just the Nexus 7) screen. For clarity, we present a photograph in which to screen off reflected the white surface (the left – the Nexus 7, right – Samsung Galaxy A5, further they can be distinguished by size):

The screen Samsung Galaxy A5 is only slightly lighter (average brightness of the images 114 against 109 in the Nexus 7). Ghosting objects reflected in the screen Samsung Galaxy A5 is very weak, it indicates that the screen between the layers there is an air gap. Due to the smaller number of boundaries (glass / air type) with very different refractive indices of the air gap without screens look better in high ambient light, but in the case of repair cracked outer glass is much more expensive, because have to change the entire screen. On the outer surface of the Samsung Galaxy A5 of the screen there is a special oleophobic (grease repellent) coating (effective, better than the Nexus 7), so fingerprints are removed much easier, and appear at a slower rate than in the case of ordinary glass.

when displaying a white field on the entire screen and manual control its brightness maximum was 395 cd / m² minimum – 1.8 cd / m². Also keep in mind that in this case is less than the white area on the screen, so it is lighter, that is, the actual maximum brightness of white portions is almost always higher than the specified value. As a result, the readability of the day in the sun to be at a sufficiently high level. Lower the brightness level without problems to use the device, even in complete darkness. Powered automatic brightness control according ambient light sensor (located to the left of the slot of the front speakers). The operation of this function, you can make adjustments by moving the slider settings. Next to the three conditions give the values ​​of the brightness of the screen for three values ​​of this setting – to 0%, 50% and 100%. In complete darkness automatically dims to 1.8, 7.9 and 16 cd / m², respectively (the first and second – too dark, and the third – normal) in office lighting conditions artificial light (approximately 400 lux), the brightness is set to 37 , 125 and 300 cd / m ² (a bit dark – at the time – yarkovato, which corresponds to a predetermined correction), in a bright environment (appropriate lighting clear day outside, but not direct sunlight – 20,000 lux, or a little more) – rises to 520 cd / m² regardless of the position of the slider. This value is greater than the maximum for manual adjustment. If you increase the brightness of the ambient light (in the vicinity of the light sensor) somewhere before hundreds of thousands of lux (equivalent to direct sunlight), the screen brightness is increased a bit – up to 525 cd / m². Such brightness exactly should be sufficient to ensure that the screen is well varied in any natural environment. In general, the result of the automatic brightness adjustment function as expected. At present any significant level of brightness modulation frequency of about 60 or 240 Hz. The figure below shows the dependence of brightness (vertical axis) against time (horizontal axis) for multiple brightness settings values:

It can be seen that the maximum and close to its brightness modulation amplitude is very large, as a result, and there is no visible flicker. However, with decreasing brightness modulation appears with a large relative amplitude. Therefore, the presence of such modulation can already be seen in the test for the presence of stroboscopic effect, or simply by rapid eye movement. Depending on the individual sensitivity is flickering can cause fatigue

In this screen uses a matrix Super AMOLED -. Active matrix organic light emitting diode. A full-color image is generated via the subpixels of three colors – red (R), green (G) and blue (B), but the green subpixels twice that can be designated as RGBG. This is confirmed by a fragment micrographs:

For comparison, you can see the gallery micrographs screens used in mobile machinery

In the snippet above, you can count 4 green sub-pixel, 2 red (4 halves) and 2. blue (a 1 and 4 quarters), while repeating these fragments, it is possible to lay out the whole screen without gaps and overlap. For such matrices, Samsung has introduced the name PenTile RGBG. Screen Resolution manufacturer believes the green sub-pixel, the other two, it will be two times lower. The location and shape of the subpixels in this embodiment close to the case Samsung Galaxy S4 screen and some other newer devices by Samsung (and not only) with AMOLED displays. This option PenTile RGBG better than the old one with the red squares, rectangles and blue stripes of green subpixels. Nevertheless, some irregularity contrasting borders and other artifacts are still present. However, due to the very high resolution, they minimally affect the quality of the image.

The screen is characterized by excellent viewing angles, true white color when you reject even small angles alternately takes on a light blue-green and pink color, but the black color – just black at any angle. So black that contrast option does not apply in this case. When viewed perpendicular to the uniformity of the white area is good. For comparison photos, which screens on Samsung Galaxy A5 and the second member of comparison derived the same image, with the brightness of the screen is initially set at about 200 cd / m², and color balance on the camera is forcibly set to 6500 K. White box:

note well, although in this case is clearly non-ideal, uniform brightness and color tone of the white area. And the test image (profile Main ):

According to visual evaluation in the test screen color reproduction is good, moderately saturated color, the color balance from slightly different screens. Recall that the photo can not serve as a reliable source of information about the quality of color reproduction and is only conditional illustrate. In this case, apparently, due to the characteristics of the radiation spectrum AMOLED display color balance in the photograph it is markedly different from that determined by the eye and visible spectrophotometer. The photo above was obtained after selecting Profile Main in the settings screen, all four of them:

Profile Adaptive Display is different some sort of automatic adjustment to the type of the displayed image and environmental conditions, what happens when two of the remaining sections shown below.

the saturation and color contrast markedly increased.

Weight is almost as high, but the color contrast closer to normal. Now, at an angle of approximately 45 degrees to the plane of the screen and to the side (profile Main ). White box:

The brightness at an angle of both screens has decreased significantly (to avoid strong dimming, shutter speed is increased in comparison with previous pictures), but in the case of AMOLED screen brightness drop is expressed much less. As a result, when formally equal brightness Samsung Galaxy A5 screen visually looks much brighter (compared to LCD screens), as the mobile device’s screen is often necessary to look at least at a slight angle. And the test image:

It can be seen that the colors have not changed much in the two screens and the brightness of the Samsung angle is much higher. Switching state of the matrix elements is carried out almost instantly, but the step width of approximately 17 ms (which corresponds to the refresh rate of about 60 Hz) may be present on the inclusion of the front. An example of such dependence of the brightness on the time of the transition from black to white and back again:

In some circumstances, the presence of such a step may lead to loops, trailing behind moving objects. However, dynamic scenes on the OLED screens films are characterized by high precision, and even some “twitching” movements.

For profiles Photos the AMOLED and Main Built on 32 points equally spaced on the numerical value of the shades of gray of gamma curve revealed no blockage of any lights or in the shadows, and the figure approximating the power function is 2,11-2,13, which is slightly lower than the standard value of 2.2, while the real gamma curve deviates little from the power dependence (in the signatures given in parentheses are index approximating the power function and the coefficient of determination, which shows the proximity of the gamma curve to the exponential dependence):

to Profile film AMOLED gamma curve has a pronounced S-shaped, which increases the apparent contrast of the image, but in the shadows distinctiveness shades saved.

Recall that in the case of the OLED-screen, the brightness of the image fragments dynamically changes according to the character output image – decreases for light in the whole image.

LikeTweet

No comments:

Post a Comment