What Your Smartphone Is Made of: A Smartphone Component Guide

Smartphones have become a crucial part of our daily lives and whenever something goes wrong with them, we find ourselves quite lost. We can get ripped from smartphone repair services if we don’t know what’s wrong with our device because sometimes they tend to charge a premium for something that doesn’t even need replacement.

If you are here to find out about the different components that make up your phone, then you are at the right place. Not only does knowing about what goes on inside your smartphones help you in diagnosing problems, but it will help you choose a better machine next time. Here’s a guide to the different components of a smartphone.


The part which you interact with the most and look at almost every time you use your phone is its display. You may think of display as a detail on the outside, but it is an internal component. Nowadays, smartphone displays are made from these basic types and their variations; LCDs and LEDs.

On an LCD display, there is a backlight shining through polarizers and filters. The display is being created by the light coming from behind and not the display itself. On the other hand, in LED displays, the light-emitting diodes do all the work. The pixels that you see on such displays are emitted by very small LEDs.


Batteries of smartphones do exactly what they are made for i.e power the device. Batteries are now being made from the new lithium-ion technology. Most batteries in smartphones are now non-removable and only some companies offer removable batteries in smartphones.

The new lithium-ion technology helps with calibration and testing issues that were a problem when we were stuck using nickel-based cells. Batteries are still very volatile and have to be handled with care.

Memory and storage

Any smartphone has to have RAM and system storage to function. RAM, also known as random access memory, is used to store working data and machine code. More RAM allows for more programs to run in the background, without overloading the smartphone.

Most smartphones are shipped with LPDDR3 or LPDDR4 RAM. However, some expensive high-end models also come with LPDD4X RAM as well. The ‘LP’ in the name stands for ‘Low-Power’, and it helps reduce the total voltage used by these chips. Using these RAM chips helps in making your smartphones more efficient, and extend their battery life.


There are 5 main sensors that provide the functionality of a touch-enabled smartphone. These are Accelerometer, Gyroscope, Digital Compass, Ambient Light Sensor, and Proximity Sensor. All of these sensors work together to provide you with a flawless experience while using a smartphone.

If you are experiencing glitchy functionality using your smartphone and you know it’s not software-related, then it is probably due to sensors that are damaged or not calibrated.

Now that you know what goes on inside a smartphone and what functions each component performs, you can take a guess when something goes wrong in your smartphone. Knowledge of these intricate things will also help you compare different smartphones and make a better choice while buying them.

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