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Mobile Phones

Electrical Power Input

Electrical power input is the amount of power that flows from the socket or power supply. The output is always lower than the input. This is where the concept of perpetual motion comes into play, because there will always be some energy loss (thermal, motion or sound). This creates the difference between input power and output power.

Project Treble

Treble is a project aimed at making Android update times faster by separating part of the operating system from vendor implementation to a new vendor interface. Treble provides some of the updates (security patches, kernel, etc.) for the device by Google rather than from the Android OS framework. The second part of the update is provided by the device-specific original vendor (graphical superstructure of the user environment, vendor specific system applications, etc.)


What is spyware?

Spyware is used to detect malicious software (malware) that hackers use to spy on users. They gain access to your personal data, banking data, and your online history. How can you get rid of spyware and how can you protect yourself against it?


What is an eSIM?

Plastic SIM cards are already dying a slow death. The future is eSIM technology. It is a separate chip that is built into the phone. What will change from using plastic SIM cards? Does the new modern eSIM technology have any pitfalls?


What is LTE?

LTE can be seen every day on mobile phones or ads. But do you know what LTE actually is? Do you know the advantages of LTE over older 3G networks? And what is the difference between LTE and 4G?


NFC (Near Field Communication) is a wireless communication used to establish a connection between portable devices, over a very short distance, only up to 4cm. Previously, NFC was used to transfer photos and videos, but you'll often hear about it in connection with contactless payments.

Virtual Reality

VR or virtual reality is a hardware and software simulated environment that gives users the illusion of the real world. VR is usually used within the mobile and computer segments and can simulate game environments as well as training programs (e.g. pilot training, combat training, etc.). Virtual reality is viewed using special glasses and powerful hardware is required, usually your computer or phone.


Ingress Protection (IP)

The ingress protection (IP) is an internationally standardised code that identifies the resistance of electrical appliances against the ingress of foreign items and liquids, especially water. It is expressed in the so-called IP code, which consists of the "IP" followed by two digits: the first indicates the protection against dangerous contact and foreign objects, the second indicates the degree of protection against water ingress.


You can connect your phone to external devices via USB-OTG (On-The-Go). Devices such as flash drives, SD card readers, mice, keyboards, game controllers etc.


GLONASS is the Russian equivalent of the American GPS system. If a phone uses a combination of GPS and GLONASS, it provides more precise location information and faster localisation.


A-GPS downloads data from the mobile network about the satellites precise orbit and thus accelerates the localisation process after the GPS is turned on.


GPS is an American positioning system that can determine your position on or above the ground within the accuracy of a few meters. It can also be used to measure distance and time.

Digital Compass

A digital compass (magnetic sensor) detects the earth's magnetic field to determine the cardinal points. This enables the phone to correctly rotate the map to fit your orientation.


The motion of a gyroscope rotates in space on all three axes. In this case, it determines the direction in which you are moving your phone.

Accelerometers and G-Sensors

Accelerometers and G-Sensors are motion sensors that determine the tilt in space. The phone uses it to know which way it is being held, e.g. portrait, landscape or upside down.

Dual SIM

A pair of GSM modules allows you to operate two active SIM cards in one phone simultaneously. The primary slot usually supports voice and data services, while the secondary slot supports only voice services. You'll find more information in the user manual provided by the manufacturer.

LTE Connection

LTE (Long Term Evolution) marks the next generation of mobile data networks. This is an intermediate step between 3G and 4G. Although manufacturers and operators sometimes mistakenly refer to it as 4G, it is not a full 4G network. That's for LTE Advanced. The maximum theoretical data transfer rate is up to 175Mbps for download and up to 57.6Mbps for sending data in one frequency band. 

Display Technology

In regards to technology-electronics, there are several different displays commonly found: TFT, IPS, and AMOLED.

TFT (Thin Film Transistor)

This is commonly found in cheap mobile phones. An advantage is its low production cost. Disadvantages include the narrow viewing angles, low-quality contrast and long response time.

IPS (In-Plane Switching)

This is also sometimes referred to as Super-TFT. It's used on both mid and high-end smartphones. It has much less flaws when compared to older TFT displays. IPS provides accurate colour reproduction and wide viewing angles.

AMOLED (Active-Matrix Organic Light-Emitting Diode)

This is currently the most advanced display on the market. With declining production costs, it can now be found on ma

Proximity sensor

The vast majority of modern mobile phones are equipped with a proximity sensor. Its task is to evaluate the distance of an object from the sensor. Once the object gets close, the telephone activates a particular function. One of the most common is the function to turn off the screen and the touch layer when the user dials a phone number and places the phone close to his ear.

Ambient light sensor

An ambient light sensor that monitors the ambient light levels and dynamically adjusts the display backlight intensity. A practical and handy feature, it is part of most modern phones. It turns the display brightness to the maximum in bright sunlight and dims the backlight in the dark. This makes the phone’s display perfectly readable in all lighting conditions without straining your eyes.

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