Accelerometer(or G-sensor) - sensor of the device’s position in space. As a main function, the accelerometer is used to automatically change the orientation of the image on the display (vertical or horizontal). Also, G-sensor is used as a pedometer, it can be controlled various functions device by turning or shaking.
Gyroscope- a sensor that measures rotation angles relative to a fixed coordinate system. Capable of measuring rotation angles in several planes simultaneously. A gyroscope together with an accelerometer allows you to accurately determine the position of the device in space. Devices that use only accelerometers have lower measurement accuracy, especially when moving quickly. Also, the capabilities of the gyroscope can be used in modern games for mobile devices.
Light sensor- a sensor that sets the optimal brightness and contrast values for a given light level. The presence of a sensor allows you to increase the battery life of the device.
Proximity sensor- a sensor that detects when the device is close to your face during a call, turns off the backlight and locks the screen, preventing accidental clicks. The presence of a sensor allows you to increase the battery life of the device.
Geomagnetic sensor- a sensor for determining the direction of the world in which the device is directed. Tracks the orientation of the device in space relative to the magnetic poles of the Earth. The information received from the sensor is used in mapping programs for terrain orientation.
Atmospheric pressure sensor- sensor for precise measurement of atmospheric pressure. It is part of the GPS system, allows you to determine altitude above sea level and speed up location determination.
Touch ID- fingerprint identification sensor.
Accelerometer / Atmospheric pressure / Geomagnetic / Gyroscope / Proximity
Satellite navigation:
GPS(Global Positioning System - global positioning system) - satellite system navigation, providing measurement of distance, time, speed and determining the location of objects anywhere on Earth. The system is developed, implemented and operated by the US Department of Defense. The basic principle of using the system is to determine location by measuring distances to an object from points with known coordinates - satellites. The distance is calculated by the delay time of signal propagation from sending it by the satellite to receiving it by the antenna of the GPS receiver.
GLONASS(Global Navigation Satellite System) - Soviet and Russian satellite navigation system, developed by order of the USSR Ministry of Defense. The measurement principle is similar to the American GPS navigation system. GLONASS is designed for operational navigation and timing support for land, sea, air and space-based users. The main difference from the GPS system is that GLONASS satellites in their orbital motion do not have resonance (synchrony) with the rotation of the Earth, which provides them with greater stability.
2 years ago
I fell 20 times, nothing fell off anywhere. The battery charge lasts a long time if you don’t surf the Internet)
2 years ago
Works quickly, without brakes, works great.
3 years ago
Fast, stable performance Screen
3 years ago
A very durable phone. Survived strong blows. Picks up wifi when other phones don't. 2 SIM cards.
3 years ago
1. Resistant to falls. 2. Good camera focus. 3. Resistant to water (very often I put it under the tap, and it doesn’t matter). 4. A very strong screen (I threw it very often, tried to break it into pieces, but to no avail). 5. Fast battery charging.
3 years ago
For the price it's a pretty good phone
4 years ago
1) resistant to falls from a height 2) fits well in the hand 3) did not cause contact failures during rain 4) after falling into water, continued to work as if nothing had happened 5) liked the folding book (additional accessory) 6) finally - then I erased this silver edging =) 7) I liked the headphones (not a little), I still use them and both headphones work properly 8) the Internet connection works just fine, everyone asked for wi-fi
4 years ago
Good-looking, strong screen and case (I fell into the sand many times, too, nothing happened), although I always carried it in a case. I have many applications open at the same time - everything flies. Two SIM cards. Wi-Fi and network reception is very good
4 years ago
Fell a lot of times, but still works well, comfortable model, fits well in the hand
4 years ago
I've been using it for 3 years now! Very cool phone, dropped a hundred times, 2 scratches on the screen. Doesn't bug, convenient
2 years ago
I've been using it for 4 years, I reset it to factory settings 3 times, I'm looking for a replacement (it's not just that it's started to glitch, it's a complete mess, WF resets very often, the Internet is terribly slow, and when I had the new one there were no complaints, and this is considering that I don't play games , I only look at WhatsApp and the weather sometimes on social networks, in general it hangs very badly for about 20 minutes, even the restart does not work.
2 years ago
The battery is weak (BUT!) in energy-saving mode lasts 2 times longer. - You have to charge it every day.
3 years ago
3 years ago
Rapid battery drain. Very fast. The processor slows down in games. The body quickly wears out, cracks and chips appear.
3 years ago
1. The battery drains very quickly. 2. You won’t believe it, but it sits down very quickly. 3. You can’t go out with him in the cold, you can’t go out with him in the heat. 4. Turns off spontaneously. 5. Poor quality on both cameras. 6. The processor slows down a lot. 7. Instead of the promised 8 GB of memory - 4. 8. Android is not updated. 9. The silver panel on the sides of the phone is wearing off. 10. The back case is plastic, cracks have appeared.
3 years ago
The battery doesn't last very long. Dim screen.
4 years ago
1) the battery charge 2) from the moment of purchase it slows down (at the time of purchase it was my first smartphone and I thought that was how it should be) 3) in the cold it discharges in a matter of seconds and it doesn’t matter how much interest you have. I came out with 100%, after walking for 10-20 minutes it discharges, despite the fact that it is in the inner pocket of my jacket. After using it for 2 years, it began to discharge and at a temperature of -1 4) I didn’t detect vibration at all, it was as if it wasn’t there 5) the speakers, well, they’ll do just fine
4 years ago
A year later, shoals began to emerge. The battery began to last 2/3 days (the Internet is always on), sometimes it will reboot itself, sometimes it does not react to anything and only removing the battery helps. For a couple of days the interlocutors did not hear me, the same thing happened. In the cold it took about half an hour to sit down.
4 years ago
The camera is terrible, especially the front camera, the battery is not enough for a day, even if you don’t use the phone at all, the Internet will be turned off and the brightness will be at 0, and if you work in it, then for 4 hours maximum. Often you have to reboot due to glitches and it may cut off at 50% of the battery and will not turn on without charging. Paint peels off quickly
4 years ago
Memory card! You CANNOT transfer anything from your phone to a memory card. This is truly terrible.
Core 2, the characteristics of which will be given in today's review, is budget solution South Korean company. In the territory Russian Federation as of 2015, the cost of the device was 7,500 rubles. After almost a full year, it dropped to 7,000 rubles. You can purchase 2, the characteristics of which raise a number of questions not only among those who want to purchase the device, but also among those who have already purchased it, in some stores. For example, in the MTS retail network.
Brief information
Samsung Galaxy The Core 2 G355H, whose characteristics are soberly assessed by experts as a three plus, is a typical representative of the budget class and has a 4.5-inch screen. Small device, able to fit in one palm. At the same time, it will be quite convenient to operate with it in the sense that the thumb can freely reach any point of the display, right to the very corners. The developers, of course, screwed up the resolution. However, more on that later. What awaits us on board is a not entirely fresh, but quite working version of the operating system of the Android family. This is version 4.4. WITH autonomous operation not everything is as good as we would like. The same can be said about the camera with a resolution of five megapixels. The entire set of necessary communications is present, with the exception of the 4G LTE module.
Design
Samsung Galaxy Core 2, the characteristics of which can be found above, shows us the continuation of the design line that the specialists of the South Korean company are pursuing. In some respects, they decided to move away from their traditions by abandoning rectangular shapes. You can notice that the edges of the device are rounded. Well, this is a very good solution, and there can be no complaints regarding this parameter. The phone fits neatly, tightly, and reliably in your hand, but all this is only under normal conditions. If your hands get sweaty or wet from water, the device tends to slip out of your hands, which is not good.
Manufacturing materials
Samsung Galaxy Core 2, the characteristics of which we presented at the beginning of the article, is made of plastic and metal. More precisely, its front panel is made from the latter material. Actually, that’s why the output feels somewhat massive. However, call this model“brick” is very, very difficult. And this has to do with a number of weight and size factors. In principle, there should be no complaints about this item. Go ahead. The back cover of the smartphone is made of plastic with a soft-touch coating. It seems to be a good practical solution that is used almost everywhere. However, there are pitfalls here. It was said earlier that the phone seems to be lying securely. But as soon as you touch it with wet hands, the reliability of the hold begins to rapidly decline.
Minuses
Another drawback of the back cover is the fact that its lower part begins to wear over time. And this is very noticeable from the outside. So that the buyer does not think that everything is very bad, we can cite one advantage that should at least compensate for the listed disadvantages, because it is unlikely to be possible to cover them with a positive outcome. Back cover has a corrugated surface. This will save the buyer from fingerprints and scratches.
Controls
The front side of the characteristics of which, in some respects, contradict each other, will be shown to us by the screen itself. It has a diagonal of 4.5 inches. There is a grill on top sound speaker, to the right of it is the front camera peephole. Under the speaker there is an inscription Samsung, to the right - Duos. Yes, the device supports two SIM cards. Navigation buttons are located below the screen. Two of them (“Back” and “Application list”) are touch-sensitive, and the “Home” key, located in the middle, is mechanical. Over a long period of use, the paint has not peeled off the sensor elements, for which we thank the developers.
Parties
Samsung Galaxy Core 2 Duos, the characteristics of which appeared on the international network even before the presentation and release of the device, has a paired volume and sound mode control key on the left side, and a lock button on the right side. As we see, unlike the same, these elements are spaced on different sides. However, there should be no complaints about this, since operating the device does not become less comfortable. Note that none of the keys have any play. The device is well assembled and does not creak when twisted. There is a drawback in the case, which concerns the chrome plating (edging): it will wear off, and at an active pace.
Display
In this regard, the budget segment of the South Korean company has not pleased many users for a long time. We can observe the same thing in the case of the Samsung Galaxy Core 2 SM-G355H, the characteristics of which will be given below. So, we have a 4.5-inch screen installed. This is a TFT matrix. In fact, IPS would fit here. But the developers decided in their own way, probably due to the low battery capacity (less than 2,000 milliamps per hour). Yes, indeed, there are savings. However, we will have to pay for this by being unable to read text in bright sunlight. The picture fades very noticeably. By the way, there is no light sensor, which means that the brightness level will have to be adjusted manually. The screen resolution is 480 by 800 pixels. After some time of use, the sensor will begin to behave inappropriately and take on a life of its own. When just one drop of water gets in, the device starts randomly opening and closing applications, dialing numbers and writing messages.
Hardware platform and performance
Samsung G355H Galaxy Core 2 Duos, the specifications of which quickly appeared in all specialized publications, is equipped with a quad-core processor with clock frequency, equal to 1.2 GHz and 768 megabytes random access memory. Already on board operating system Android family version 4.4. Not the best option, but it's perfect for such a mediocre filling. Sometimes it seems that something simpler is needed, because the interface begins to work not quite smoothly, in jerks. The phone is not suitable for demanding games. You can open several applications at the same time, but they must be simple programs. Otherwise, “brakes” may begin.
Samsung Galaxy Core 2 SM-G355H: characteristics from users and reviews
In general, the phone does not deserve special attention. In the price category where the device is located, there are a sufficient number of more productive and pleasant analogues. A lot of users complain about the smartphone camera. If the main module shoots even more or less acceptable in good lighting conditions, then front-camera- sheer horror. It is difficult to highlight any positive qualities of the device. One could say that we have before us a good workhorse for surfing the Internet, but this is prevented by the poor quality 3G module and low battery charge. At active use social media device will turn off after lunch.
