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Technical features of the smartphone (Part 2)

Brand, design, price, not necessarily in that order: These are the main features that most of us take into consideration when we begin to evaluate options for buying a smartphone or tablet. But there are also those who started your choice of a new device from the technical specifications: processor, RAM, screen … What features should you look for in your next device? Today the Android for Beginners will continue to teach you something very important, help you to better understand the features of an Android device.


Generally, the camera quality of a smartphone is indicated by the sensitivity of the sensor whose resolution measured in megapixels (MP) is the sensor that will define the image quality. Usually, an 8 MP camera takes better pictures than a 5 MP, but, from a technical point of view – the number of megapixels of the sensor indicates the size of the sensor and not the quality of the camera. For this reason, two cameras with the same number of megapixels take different pictures. Here's an example below:

The photo on the left was taken with the Samsung Galaxy S3 8 MP camera and the right on the 8 MP iPhone 5 camera. Full test here.

Of course, the larger the image, the larger the number of pixels required to make it look good.

That said, there are many other variables that come into play when it comes to mobile device cameras: sensor size, lenses, etc .. Photos taken with the Huawei Ascend G615 with an 8 MP camera are not comparable with photos taken with the camera. Samsung Galaxy S3 8MP Camera.

Another variable to consider is the presence of flash: the most affordable smartphone camera sometimes does not come with a flash. Needless to say, a camera without flash will produce limited results. Another thing to consider before buying a handset is whether or not it comes with a front camera: the absence of a front camera makes it impossible to make video calls.


This is perhaps the specification where today's smartphones sin most. The longer a cell phone battery lasts, the better. Right? The problem is in battery capacity. A larger capacity, larger and heavier battery. Having a larger battery means having a thicker and heavier device. The capacity of a battery measured in milliamps (mAh) and to determine if it will be sufficient for our needs we have to take into account the power consumption of the device.

3,000 mAh battery for the Samsung Galaxy S3.

The screen is the component of a smartphone that consumes more battery power. If we want a smartphone with a 5 inch screen diagonal, we should focus on a 2,500 to 3,000 mAh battery. If your smartphone screen is 3 inches, a 1,200 mAh battery will usually be more than enough. Tips on how to save your phone battery here.

Another aspect we must take into consideration is whether the battery is removable or not. For some intensive users, having a spare battery and being able to replace it is indispensable. Lately, manufacturers have introduced unibody smartphones, which make it impossible to change the battery.

Operational system

Often abbreviated to OS or Operating System (OS), the operating system is rarely a problem for newer devices, as they are released with the latest versions of an OS. A tip from AndroidPIT: Whenever possible, opt for a smartphone with the latest Android version, because manufacturers tend to "forget" older models. Usually every year a new version of the Android OS is released.

Here you can find the first part of this guide for the specifications of a mobile device.

Image: AndroidPIT

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