Thursday, April 18, 2019

Lumia 638

Lumia 638
Lumia 638
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  • CPU
    Quad-core 1.2

  • ROM
    8 GB

  • RAM
    1 GB

  • CAMERA
    5 MP

  • LCD
    4.5"

  • Battery
    1830 mAh

Lumia 638 - SPECIFICATIONS

General

  • Status
    Available
  • Announced
    2014, December
  • Released
    2014, December

Network

  • Technology
    GSM / HSPA / LTE
  • 2G Network
    GSM 850 / 900 / 1800 / 1900
  • 3G Network
    HSDPA 850 / 900 / 1900 / 2100 - RM-1010
  • 4G Network
    LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
  • Speed
    HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
  • GPRS GPRS (General Packet Radio Service) is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications (GSM), Generally, GPRS is used for the purpose of wireless data transfer, such as sharing pictures and videos or browsing the Internet via a mobile phone connection.
  • EDGE EDGE (Enhanced Data GSM Environment) is a wireless network technology generally considered the next step in the 2G network offers data transfer rates up to four times faster than ordinary GSM networks, Generally, EDGE is used for the purpose of wireless data transfer, such as sharing pictures and videos or browsing the Internet via a mobile phone connection.

Body

  • Dimensions
    129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in)
  • Weight
    136 g (4.80 oz)
  • Colors
    Black
  • SIM SIM (Subscriber Identity Module) is a small card that contains mobile network subscriber's account information. This allows the phone using the card to attach to a mobile network. The SIM card is most commonly associated with GSM and UMTS mobile networks. Moving a SIM card from one phone to another allows a subscriber to switch mobile phones without having to contact their mobile network carrier. SIM cards can also be used by a phone to store limited amounts of data, such as phone numbers and text messages.
    Micro SIM

Display

  • Display Type Display Technology => A number of display technologies and types used in mobile phones => TFT (Thin Film Transistor), IPS (In-Place Switching), OLED (Organic Light Emitting Diode), AMOLED (Active-Matrix Organic Light-Emitting Diode), Super AMOLED (an even advanced version of AMOLED), Resistive Touchscreen (Resistive touchscreens contain two layer of conductive material with a very small gap between them which acts as a resistance), Capacitive Touchsceen (Capacitive touchscreen technology consists of a layer of glass coated with a transparent conductor)
    IPS LCD capacitive touchscreen,
  • Size
    4.5 inches (~64.6% screen-to-body ratio)
  • Display Colors Display Colors is refers to the number of different shades of colors that the screen is capable of displaying => 64K colors, 256K colors and 16 million colors, Obviously 16M is highest available range of colors and better than others.
    16M colors
  • Resolution
    480 x 854 pixels
  • Pixel Density Pixel Density (PPI) is refers to the concentration of pixels on a particular display, measured in pixels per inch (ppi). Pixel density is calculated by dividing the diagonal pixel resolution of a display by its diagonal size, higher pixel density better display quality.
    218 ppi pixel density
  • Display Protection Display Protection => Gorilla Glass is a special alkali-aluminosilicate glass shield with exceptional damage resistance that helps protect mobile displays from scratches, drops, and bumps of everyday use, It is always better to go for a smartphone with Gorilla Glass for that added protection and peace of mind.
    Corning Gorilla Glass 3
  • Multitouch
  • Features
    - ClearBlack display

Camera

  • Primary Camera is able to capture photographs and usually videos, The most important characteristics of a camera are the resolution (measured in megapixels), lens focus type (fixed or automatic), higher megapixel cameras are known to capture higher quality photos, but not always a good measurement of the photos quality.
    5 MP, autofocus
  • Video
    Yes
  • Secondary
    No
  • Features
    1/4" sensor size, geo-tagging, panorama

Hardware

  • Chipset Chipset is a group of integrated circuits designed to perform one or a more dedicated functions, often with real time computing constraints, Popular smartphones are equipped with more advanced embedded chipsets that can do many different tasks depending on their programming.
    Qualcomm Snapdragon 400
  • CPU CPU (Central Processing Unit) mostly known as processors, CPU processes instructions in order to carry out certain functions that make your device operate properly. Processors are often described as the brain of computers, smartphones and tablets, Smartphones and tablets rely on processors to carry out their every task, Processors are an incredibly important factor in selecting any type of computing device, including your smartphone.
    Quad-core 1.2 GHz Cortex-A7
  • GPU GPU (Graphics Processing Unit) is a single-chip processor designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display, This includes things such as lighting effects, object transformations, and 3D motion.
    Adreno 305
  • RAM (Memory) RAM (Random Access Memory) is a type of computer memory that can be accessed randomly, any byte of memory can be accessed without touching the preceding bytes that allows information to be stored and accessed quickly from random locations. RAM is the most common type of memory found in computer systems, smartphones, tablets and other electronic devices.
    1 GB
  • Internal Storage Internal Storage is a data storage space (flash memory) mostly used in smartphones, tablets and other electronic devices where operating system, apps, music, photos, videos, files and other user data Is stored.
    8 GB
  • Card Slot Memory Card Slot is a special slot for inserting a memory card. Memory cards allow you to expand the phone's built-in memory, A memory card (sometimes called a flash memory card or a storage card) is a small storage medium used to store data such as text, pictures, audio, and video, for use on small, portable or remote computing devices such as mobile phones, mp3 players, digital cameras.
    microSD, up to 256 GB (dedicated slot)
  • Sensors Sensors are electronic components that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure and location, The output is generally a signal that is converted to use in computing systems, a location sensor, such as a GPS receiver is able to detect current location of your electronic device.
    Accelerometer

Software

  • Operating System OS => Every computer system run on a base software called Operating System (OS). Operating System controls all basic operations of the computer (such as smartphone, PDAs, tablet computers and other handheld devices). The Operating System allows the user to install and run third party applications (apps), apps are used to add new functionality to the device.
    Microsoft Windows Phone 8.1
  • Java Support Java for Mobile Devices is a set of technologies that let developers deliver applications and services to all types of mobile handsets, ranging from price efficient feature-phones to the latest smartphones. Java is currently running on over 3 billion phones worldwide, and growing. It offers unrivaled potential for the distribution and monetization of mobile applications.
    No
  • Messaging
    SMS (threaded view), MMS, Email, Push Email, IM
  • Browser
    HTML5

Media

  • Alert Types
    Vibration; MP3, WAV ringtones
  • Loudspeaker
    Yes
  • 3.5mm jack
  • FM Radio
    FM Radio
  • Features
    - Active noise cancellation with dedicated mic

Connectivity

  • Bluetooth Bluetooth is a wireless communications technology for exchanging data between mobile phones, headsets, computers and other network devices over short distances without wires, Bluetooth technology was primarily designed to support simple wireless networking of personal consumer devices.
    v4.0, A2DP, LE/ aptX after WP8 Denim update
  • Infrared Infrared connectivity is an old wireless technology used to connect two electronic devices. It uses a beam of infrared light to transmit information and so requires direct line of sight and operates only at close range.
  • Wi-fi Wi-Fi is a popular wireless networking technology using radio waves to provide high-speed network connections that allows devices to communicate without cords or cables, Wi-Fi is increasingly becoming the preferred mode of internet connectivity all over the world.
    Wi-Fi 802.11 b/g/n, DLNA, hotspot
  • Wi-fi Hotspot
  • USB
    microUSB v2.0
  • GPS GPS The Global Positioning System is a satellite-based radio navigation system, GPS permits users to determine their position, velocity and the time 24 hours a day, in all weather, anywhere in the world, In order to locate your position, your device or GPS receiver must have a clear view of the sky.
    Yes, with A-GPS, GLONASS
  • NFC NFC (Near field communication) is a set of standards for smartphones and similar devices to establish peer-to-peer radio communications with each other by touching them together or bringing them into proximity, usually no more than a few inches.

Battery

  • Battery Type Battery Type => Cell phones run on various kinds of batteries depending on the manufacturer, phone size or shape and features. There are basically four types of cell phone batteries => Lithium Polymer, Lithium Ion, Nickel Metal Hydride and Nickel Cadmium.
    Li-Ion (Lithium Ion)
  • Placement
    Removable Li-Ion 1830 mAh battery (BL-5H)

Features

  • Features
    - MP3/WAV/eAAC+/WMA player
    - MP4/H.264/WMV player
    - OneDrive (15 GB cloud storage)
    - Document viewer
    - Video/photo editor

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