It would seem that not so long ago, when mobile phones entered our lives, we could not even imagine that the phone would not have buttons, that with its help it would be possible not only to make calls and send short text messages. Now we cannot imagine life without this device. With its help, we not only keep in touch, but also have fun, learn news and useful information, thanks to the presence of the Internet. And at the moment there are quite a few operators, each of which has different tariff plans. One is designed for low-cost calls, the other for profitable Internet, and the third has full unlimited and a one-time monthly fee. And in this case, it is not always possible to make a choice with a benefit in your favor. But smartphone manufacturers took everything into account and made devices with two SIM cards.
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There are a lot of criteria by which these devices can be divided, but the division into types in this case will have a very fuzzy border. Therefore, let's look at the types of smartphones with different operating systems.
The most common operating system is Android. Since Google has owned this OS since 2005, when using an Android phone, it automatically gets access to all the features of the company. When you turn on the phone for the first time, you will be required to enter a Google login, if any, or register. After that, there will be full access to maps, documents and other services, and most importantly, access to Google Play will be opened, where the user can download a free or paid application. To date, there are more than 700 thousand applications, and the number of downloads exceeds 25 billion.
Another popular operating system is iOS, which was previously called iPhone OS. iOS is developed and released by the well-known American company Apple. This OS first appeared in 2007, and is only suitable for iPhone and iPod. There are more than 1.5 million apps for iOS devices, with over 100 billion downloads worldwide.
Today, there are many companies involved in the production of smartphones. Therefore, let's look at popular and well-known brands that have proven themselves in the market.
The company was founded in the 1970s in California. Its founders were Steve Jobs, Steven Wozniak and Ronald Wayne.It all started in the garage of Jobs' adoptive parents, and gradually grew into a serious business. Then the name of the company appeared - "Apple". The name does not have any hidden meaning, it was chosen to take an earlier position in the telephone directory than that of the main competitor.
It is worth noting that moment in the history of the company when Steve left it. It was in the mid 80s. After that, the company's business went into decline, and by the end of the 90s, Apple almost became bankrupt due to its debts. But then a turning point occurs, Mr. Jobs returns to the company, and things immediately begin to go up. The beginning of the 2000s was the discovery of new heights for the company. Indeed, during this period, such popular gadgets as the iPhone and iPod were released, as well as the iTunes Store was opened.
So, gaining popularity, the "apple" company in 2011 became one of the most expensive companies in the world.
Today it is considered prestigious to have products with the apple logo, even if there are budget options that are not inferior in technical characteristics.
This company from South Korea was founded back in 1938, and its name means three stars.
The initial activity of the company was not related to electronics. The company took this direction after the new reforms that were created during the end of the Korean War. Thus, since 1969, "Samsung" began to produce black and white televisions. But still, the company's affairs were not going in the best way, so changes in the company's policy followed and a new logo appeared.
Now the company has an undoubted success in the market. Samsung has over 60 offices around the world and employs approximately 500,000 people.
This Chinese company was founded in 1987. Its main activity extends to the creation of telecommunications networks and the creation of mobile devices under its own name.
In 2015, this company ranked third in the world in the production of smart phones, and in 2018, Huawei overtook the American giant and ranked second in the world. And in the Russian market in 2018, it took first place in sales of mobile devices.
In 2019, together with a Korean company, smart glasses were presented, where the right will have a battery, speakers, a microphone and an antenna. Also this year, this brand released a smartphone with 5G support and its own operating system called Harmony OS.
It is also worth noting that the company has repeatedly been accused of unscrupulous development and espionage. But Huawei has shifted the responsibility to its employees.
This Chinese corporation was founded in 2010. Today it occupies the 4th place in the world in the production of smart phones. Xiaomi released its first smartphone in 2011, and the next year a new model with improved characteristics was released. Every year, the products of this manufacturer went up, and in 2015 their first camera was introduced, capable of shooting in an aggressive environment. And a year later, a new smart bike was introduced to the world. In 2019, in addition to new smartphones with high performance, a smart blanket was created that can adjust to body temperature.
To date, the main activity of "Xiaomi" is aimed at the development of smartphones.There are several lines that have a different price category and are intended for a specific target audience, as well as tablets, headphones and fitness bracelets.
Today, the market for mobile devices is so wide that it is almost impossible to make a choice in favor of a particular model. Therefore, first of all, decide on your budget, and start considering options from this price category.
Pay attention to the body material. Many models now have a beautiful and stylish body made of glass. Fingerprints will be immediately visible on such panels, and it is quite easy to cause mechanical damage to it. There are also plastic options. Such models do not look very solid, but they are more resistant to mechanical stress. Although today there is a large selection of protective cases with a beautiful design that will help keep the case intact.
Battery capacity is responsible for battery life. Therefore, based on your needs, choose the model that best meets this parameter. Also now most options have a fast charging function. That in a short time allows you to fully restore the battery charge.
Also, do not forget about the diagonal of the screen. If you mostly have to work with one hand, then do not choose a model with a large diagonal. It will be very inconvenient to use it. But if you like to read books using your smartphone or work with text documents, then the small size of the display will be inconvenient. In addition, with a screen that has a large diagonal, it will be convenient to watch videos or play games, but do not forget about where you will carry the device.For example, a smartphone that is too large may not fit in a pocket.
Display resolution plays an important role in the price of the device. Now 4K models are gaining popularity. They have a very high pixel density per inch. But this will be noticeable only if you look at the screen almost up close. Since we usually use the device at a distance of about 30 cm from the eyes, the difference will be very imperceptible to us.
Also, the camera performance is not the last value. But here you should not pay attention to the number of megapixels indicated by the manufacturer. Since the result will depend not only on this indicator. In this case, it is better to turn to reviews on the Internet and compare the quality of the pictures.
Depending on the purpose for which the purchase of this gadget is carried out, pay attention to the amount of built-in memory and the maximum allowable amount of built-in memory card.
There are also models with one or two SIM-cards. If it is more convenient for you to use two different operators, then the second option will be very useful. But some models combine a slot for an additional SIM card with a place for a flash card. In this case, you should take a model with a large built-in memory or abandon the second operator.
A feature of this model from Xiaomi is a high-resolution camera and high performance, thanks to which you can work with any application or install “demanding games”.
The panels of the device are made of glass, have beautiful overflows, and the frame is made of metal. A 20-megapixel front camera is hidden under a small teardrop-shaped cutout.This camera is equipped with artificial intelligence, and during the shooting, it suggests the most suitable filter. The main camera has a 64 megapixel module that needs to be enabled separately, there is also an 8 megapixel sensor with a wide viewing angle, and two 2 megapixel modules for macro photography and background blur.
The battery capacity is 4500 mAh, which is enough for long hours of active use. The size is 7.6 * 16.1 * 8.7 cm, and the weight is 200 g.
The average cost is 15,000 rubles.
This model is a simplified model of the flagship "Xiaomi Mi 9". It combines high performance, extensive functionality, high camera resolution and affordable price.
"Xiaomi Mi 9 Lite" has a 6.39-inch AMOLED display, it has excellent color reproduction, and the screen brightness adapts to the ambient light. There is a blue filter that will not let your eyes get tired.
It is worth noting the design. The display has no bezels, and a small cutout for the front camera is provided at the top. It is also thin and light enough to comfortably hold the device in your hand. Unlocking is carried out using a fingerprint scanner, which is built into the smartphone screen. Also, touch sensors quickly respond to touch, even at negative ambient temperatures. The back panel is made in three color options with a gradient.
Listening to music will be pleasant both with and without headphones. The device has powerful speakers and a special chip responsible for the purity of sound.
The main camera consists of three sensors.The main sensor has a resolution of 48 megapixels, there is a wide-angle lens of 8 megapixels, with a viewing angle of 118 degrees. And to blur the background, a 2 megapixel sensor is provided. With such a camera, you will have bright, clear pictures with all the details, even in the dark. The front camera has a resolution of 32 megapixels, it can also be used for face unlock.
If we talk about the performance of the device, then there is an 8-core processor and 6 GB of RAM. With such a gadget, you can easily play 3D games, and there will be no system freezes and slowdowns.
The battery has a capacity of 4030 mAh, which will be enough for 48 hours of operation, under normal loads. There is also a fast charging function that will fully charge the battery in a short time.
The size of "Xiaomi Mi 9 Lite" is 7.5 * 15.7 * 6.7 cm, and the weight is 179 grams.
The average cost is 20500 rubles.
This model represents a simplified version of a smartphone from the P30 line. Although the model is the youngest in its line, it took all the advantages from its older comrades. The frame of this device is made of metal, and the back panel and screen surface are covered with glass. Available in three colors: white, black and bright turquoise with a gradient. The screen size is 6.15 inches and has no bezels. Also, the screen has FHD resolution, which will give you a lot of bright colors. The manufacturer did not forget about eye protection, with prolonged use of the phone you will not feel tired.
In order to capture the bright moments of life, there is a block consisting of three cameras. The main camera has a resolution of 24 megapixels, the second camera is 8 megapixels, with a viewing angle of 120 degrees, an auxiliary sensor for blurring 2 megapixels. The camera has an artificial intelligence system that can recognize about 30 scenes. The front camera has a resolution of 32 megapixels, automatically corrects selfies and focuses on the face. It can also be used to unlock the device.
"Huawei P30 lite" has an 8-core processor, RAM is 4 GB, and internal memory is 128 GB. This amount of memory allows you to store a large amount of data, and not think about expanding it. The manufacturer also provided a slot in which you can install an additional memory card or a second SIM card. Thanks to this device performance, you can install any applications and games.
Battery "Huawei P30 lite" has a capacity of 3340 mAh. With moderate loads, a full battery will last for 2 days of use. There is a fast charging function, while the battery can be fully charged in 1.5 hours.
The size of "Huawei P30 lite" is 7.3 * 15.3 * 7.4 cm, and the weight is 159 grams.
The average cost is 15,000 rubles.
The Oppo A9 smartphone entered the market in October 2019, and during this time many people have liked it. The screen has no superfluous frames, in the upper part there is a small teardrop-shaped cutout for the selfie camera. The back panel has 4 cameras and a scanner to unlock the device. This model has two color options: green and purple.Each of which looks amazing.
The "Oppo A9" has a Snapdragon 665 chipset which is an octa-core platform and has a clock speed of up to 2GHz. The RAM of the device is 4 GB. Together, this results in a powerful system with high performance. The smartphone can easily cope with the tasks, and can also be used for games with high requirements.
To take high-quality and detailed pictures, there is a quad camera, which consists of a 48 MP main sensor, an 8 MP ultra-wide-angle module, and two 2 MP cameras. One of these cameras is used for blurring the background and the other for macro shots. The camera on the front has a resolution of 16 megapixels.
The battery capacity is 5000 mAh, which is enough for 16 hours of watching videos. There is also a function of fast charging and using "Oppo A9" as a charger for other devices.
The amount of internal memory is 128 GB, it can also be supplemented with a memory card. Oppo A9 measures 7.6*16.4*9.1cm and weighs 195g.
The average cost is 18,000 rubles.
A feature of the model from the famous brand "Samsung" is a screen that has no frames and provides unlimited possibilities when watching movies, working with applications or exploring the network.
A smartphone with an ergonomic design, it is easy to hold it in your hand, and you can do any operation with one hand. "Samsung Galaxy A51" is presented in three colors: black, white and red.Also on the back there are lines that perfectly complement the bright shade with shadows.
To create the perfect shots, there is a main panel consisting of 4 cameras. The main camera is 48 megapixels, designed for high-definition pictures at any time of the day. The second 8MP sensor has a 123-degree field of view and is suitable for nature or group shots. There are also two 5-megapixel cameras for macro photography and rear-view blur. The 32 MP selfie camera will allow you to create perfect shots, as well as a mode for blurring the background so that the face is more visible.
Responsible for the performance of the device is an improved processor with eight cores and 4 GB of RAM. Built-in memory capacity of 64 GB will allow you to store a lot of necessary information on your phone. But if this is not enough, it is possible to install a memory card.
The battery capacity is 4000 mAh. This amount of energy allows you to use the device "to the fullest" during the day, and with "fast charging" you will replenish energy in the shortest possible time.
The size of the Samsung Galaxy A51 is 7.4*15.9*7.9 cm and the weight is 172 g.
The average cost is 18,000 rubles.
The smartphone models presented in the rating are from the middle price category. Higher cost options will have higher performance. But the described smartphones are not inferior to them. With their help, you can take high-quality pictures, go online without any problems, and entertain yourself with games.