Battery capacity mAh Batteries convert chemical energy directly to electrical energy.

A battery consists of some number of voltaic cells. Each cell consists of two half-cells connected in series by a conductive electrolyte containing anions and cations.

SAR value SAR specific absorption rate is an indication of the amount of radiation that is absorbed into a head whilst using a cellular phone, the higher the SAR rating the more radiation that is absorbed into the head.

Screen size inches Is the physical size of the area where pictures and videos are displayed.

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The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, usually in inches.

Touchscreen A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system.

The user can use the touchscreen to react to what is displayed and to control how it is displayed; for example, zooming to increase the text size.

Organizations such as the World Health Organization and the US Food and Drug Administration have suggested that if people are concerned and want to reduce their exposure, they could use a hands-free accessory to keep the wireless device away from the head and body during use, or reduce the amount of time spent using the device. Asus ZE550ML Zenfone 2 Dual Sim Phone with 2GB RAM, 16GB ROM — White The higher the SAR value the more radiation is absorbed.

Resolution The display resolution or display modes of a digital television, computer monitor or display device is the number of distinct pixels in each dimension that can be displayed.

It can be an ambiguous term especially as the displayed resolution is controlled by different factors in cathode ray tube CRTflat-panel display which includes liquid-crystal displays, or projection displays using fixed picture-element pixel arrays.

Pixels per inch PPI Pixels per inch PPI is a measurement of the pixel density resolution of an electronic image device, such as a computer monitor or television display, or image digitizing device such as a camera or image scanner.

Horizontal and vertical density are usually the same, as most devices have square pixels, but differ on devices that have non-square pixels. Processor A mobile processor is found in mobile computers and cellphones.

A CPU chip is designed for portable computers, it is typically housed in a smaller chip package, but more importantly, in order to run cooler, it uses lower voltages than its desktop counterpart and has more “sleep mode” capability.

A mobile processor can be throttled down to different power levels or sections of the chip can be turned off entirely when not in use.

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Further, the clock frequency may be stepped down under low processor loads. This stepping down conserves power and prolongs battery life.

A random-access memory device allows data items to be accessed read or written in almost the same amount of time irrespective of the physical location of data inside the memory.

Internal storage A reference is distinct from the data itself. Typically, for references to data stored in memory on a given system, a reference is implemented as the physical address of where the data is stored in memory or in the storage device.

For this reason, a reference is often erroneously confused with a pointer or address, and is said to “point to” the data. Expandable storage Expandable Memory refers to the capability of a phone or mobile device to increase its storage capacity through the addition of an external memory card.

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Expandable memory, in the form of memory cards, is very useful for people who use their smartphones to the best of its abilities.

Since it adds extra storage space to your device, the amount of files you can put in increases.

Think of it as a flash drive for your computer: you can store more music, photographs, games, documents, videos, and ebooks on it.

While computers such as the typical laptop are mobile, the operating systems usually used on them are not considered mobile ones as they were originally designed for bigger stationary desktop computers that historically did not have or need specific “mobile” features.

Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use; usually including, and most of the following considered essential in modern mobile systems; a touchscreen, cellular, Bluetooth, Wi-Fi, GPS mobile navigation, camera, video camera, speech recognition, voice recorder, music player, near field communication and infrared blaster.

20.02.2020 – Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems and frontal boundaries. Not really a cause. You should also be aware that the SAR values shown are maximum values and in practice emissions from mobile phones will normally be lower than these figures. Nothing painful, just a very annoying sensation.

Wi-Fi Wi-Fi or WiFi is a local area wireless computer networking technology that allows electronic devices to connect to the network, mainly using the 2.

GPS The Global Positioning System GPS is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

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Bluetooth Bluetooth is a wireless technology standard for exchanging data over short distances using short-wavelength UHF radio waves in the ISM band from 2.

NFC Near field communication NFC is a set of protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish radio data communication with each other by bringing them closer than, typically, 10 cm 4 in from each other.

Headphones Headphones or head-phones in the early days of telephony and radio are a pair of small listening devices that are designed to be worn on or around the head over a users ears.

They are electroacoustic transducers, which convert an electrical signal to a corresponding sound in the users ear.

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Later 3G releases, often denoted 3. This ensures it can be applied to wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV technologies.

Compass A compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions, or “points”.

Usually, a diagram called a compass rose, shows the directions north, south, east, and west as abbreviated initials marked on the compass.

Proximity sensor A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact.

A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation infrared, for instanceand looks for changes in the field or return signal.

The object being sensed is often referred to as the proximity sensors target. Accelerometer An accelerometer is a device that measures proper acceleration “g-force”.

Proper acceleration is not the same as coordinate acceleration rate of change of velocity.

Thanks Paolo. For the moment, as i mentioned above and for the reasons mentioned above too, if i had to buy i mobile phone, i would buy either an LG or a Samsung phone, but i would First check out the sar of the phone that i would want to buy, before i buy it. Sar value of microsoft lumia 640 dual sim Nevertheless, the problem isn’t the electromagnetic radiation in itself only. All mobile phones on sale in the UK comply with this limit.

By contrast, accelerometers in free fall orbiting and accelerating due to the gravity of Earth will measure zero. Ambient light sensor Based on a patented dual-diode implementation, the Ambient Light Sensing ALS devices approximate the human eye response to light under a variety of lighting conditions.

So I am not really sure what my Three 3 i-phone is! Sar value of microsoft lumia 640 dual sim Ambient light sensor Based on a patented dual-diode implementation, the Ambient Light Sensing ALS devices approximate the human eye response to light under a variety of lighting conditions.

The devices have a wide range of performance allowing accurate ALS measurements in lighting environments ranging from low-light to bright sunlight up to K lux.

Gyroscope A gyroscope is a spinning wheel or disc in which the axis of rotation is free to assume any orientation.

When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum.

Because of this, gyroscopes are useful for measuring or maintaining orientation.

Barometer A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather.

Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems and frontal boundaries.

Temperature sensor A thermometer is a device that measures temperature or a temperature gradient.

A thermometer has two important elements: a temperature sensor in which some physical change occurs with temperature, and some means of converting this physical change into a numerical value.

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