A Guide To Choose Best Smartphones

A Guide To Choose Best Smartphones

How to select an appropriate smartphone? There are various key factors that need to be kept in mind while purchasing required smartphones. Some key features are summarized below:


We have already talked about screen sizes above, but just in case: smartphones with a diagonal of 5 inches or less are considered compact, and those with a diagonal of 6 inches or more are smartphones with a large screen. But the diagonal is not the only parameter of the smartphone screen.

Screen type

The most common options today are IPS and OLED (AMOLED, Super AMOLED, Dynamic AMOLED, and other variations). IPS matrices and the like are inexpensive and provide good image quality. OLEDs are much more expensive, but they use energy much more carefully and are able to produce not dark gray, but real black, which you will never get from IPS.


This word hides the number of dots that form the image on the display. The most common and optimal options today are FHD + (about 2340 by 1080 pixels), and HD + (about 1520 by 720 pixels). Resolutions much smaller than these will grain. Anything more is not worth the extra cost.

Frames and cutouts

The screen takes up most of the front of the smartphone, but not all. Sensors and front cameras still need space. So far, they really don’t know how to hide them under glass, and there are only three options here: frames around the display, cutouts in the display, or simply folding cameras. Notches in the display are annoying to many, but today most smartphones have them, so it remains only to wait for further developments in technology.

The most important thing when choosing a camera phone is not to chase after megapixels. Any mobile camera has more than enough of them. Better pay attention to the aperture and the physical dimensions of the matrix.

Battery capacity

Battery life is the weak point of any portable device, not just a smartphone. The task of manufacturers is to make the phone last on one battery charge at least until the evening, or better, a couple of days. To achieve this, batteries are trying to make more and more capacious. When choosing a smartphone, it is better to focus on models with a battery of at least 3500 mAh. Better – 4000 mAh and above.

Built-in memory

A smartphone does not have much memory. Neither 8 nor 16 gigabytes of built-in storage is enough for your applications and media collection. It is better to immediately choose a device with at least 32 GB of internal storage.


The processor – a system-on-a-chip – is the heart of a smartphone. The speed of the device, its temperature, and battery life depend on it.

Number of Cores

Even budget smartphones are equipped with processors with 8 cores, although 4 is enough for most tasks. In theory, a larger number of processor cores should increase its performance. This may be true, but cores are not the only characteristic of a processor.

Clock frequency

This parameter shows how many operations per second the processor can do. For mobile processors and 2 GHz is no longer the limit.


Large companies use their own processor models in their smartphones. Apple has the A series, Samsung has Exynos, and HUAWEI has HiSilicon Kirin available at huawei christmas promo 2021. One of the best mobile processors on the market is the fast and economical Qualcomm Snapdragon. They compete with low-cost SoCs from MediaTek and Texas Instruments, which are used in inexpensive Chinese smartphones.


The smartphone’s RAM stores information about open applications, browser tabs, clipboards, and other current tasks. Accordingly, the more RAM, the faster the smartphone. If you need at least minimal performance, take a device with 2 gigabytes of RAM. It is better if it is 3-4 gigabytes. In productive models, there are 6, 8, and even 12 gigabytes of RAM, but the latter seems to be superfluous.

Other features

Number and format of SIM-cards. Smartphones with one SIM card are almost gone. Even stubborn Apple engineers finally gave up and began to make devices with two SIM cards. The most common SIM card format today is nano-sim. The length of these babies is a little more than 12 mm. Micro-sim is slightly larger – they are 15 mm in length. The largest of the SIM cards for which you can still find a smartphone is mini-sim with 25 mm in length.


A convenient and useful feature that allows you to exchange information over close distances. It is NFC that is needed in order to use a smartphone as a payment instrument or to instantly connect peripheral devices to the phone.


This is a modern cellular communication format that provides fast Internet at speeds up to 1 gigabit per second. The fifth-generation networks will not come into wide use soon, and the third generation has already lost its relevance, so our choice is 4G.

Protected from dust and moisture

This parameter is determined according to the military standard IPXX. The first X stands for dust resistance, the second for water resistance. The more numbers, the better. If instead of numbers there is X, it means that the smartphone has not been tested for the degree of protection against water or dust.


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