Microsoft announced the launch of the Lumia 640 Dual smartphone in 2015. The manufacturer is offering the Microsoft Lumia 640 Dual phone with 5 inch display, Qualcomm Snapdragon 400 MSM8926 chipset, 1 GB of RAM and 8 GB of internal storage.
The Microsoft Lumia 640 Dual series was launched with Microsoft Windows 8.1 pre-installed, but it is upgradable to newer versions of OS as they become available. This phone features a high resolution 720 x 1280 px IPS display. The size of screen is 5 inch.This display is a solid choice for Lumia 640 Dual smartphone. This smartphone has a single camera on the back (8 MP, 3264 x 2448 px, autofocus). The single camera setup can be sufficient for many smartphone users, depending on their photography needs and preferences. The front camera of Lumia 640 Dual gives you the freedom to capture moments with yourself or your friends and family easily.
Microsoft Lumia 640 Dual specifications
|Name||Lumia 640 Dual|
|Dimensions||5.56 x 2.84 x 0.35 inch|
|Colors||glossy cyan, matte black, orange, white|
|SIM type||Micro SIM|
The weight of Microsoft Lumia 640 Dual is about 5.11 oz with battery, which is average compared to most of the smartphones with same size. The dimensions of this Microsoft smartphone are average (5.56 x 2.84 x 0.35 inch). Smaller smartphones are more compact and easier to carry around, but they may have smaller displays that can be harder to read and interact with. A micro SIM is a smaller (15 x 12 x 0.76 mm) version of the standard SIM card used in mobile devices. The micro SIM card provides the same functionality as the standard SIM card, allowing the user to connect to a cellular network and use mobile data, voice, and messaging services.
|OS version||Microsoft Windows 8.1|
|SoC||Qualcomm Snapdragon 400 MSM8926|
|CPU||Quad-core 1.2 GHz Cortex-A7|
The Microsoft Lumia 640 Dual comes with Microsoft Windows 8.1 out of the box, but it is upgradable to the next OS. The Lumia 640 Dual has a Qualcomm Snapdragon 400 MSM8926 CPU. This mid-range, quad-core CPU is capable of delivering fast and efficient performance for a wide range of tasks. The Lumia 640 Dual utilizes Adreno 305 GPU. A GPU (Graphics Processing Unit) is a specialized chip that is primarily designed to handle and accelerate the processing of graphics and visual data. It is responsible for rendering images, videos, and animations on a smartphone screen. Adreno GPUs are designed to work in conjunction with Qualcomm's Snapdragon processors. The latest Adreno GPUs support advanced graphics features such as high dynamic range (HDR) rendering, virtual reality, and augmented reality applications.
|Screen size||5 inch|
|Resolution||720 x 1280 px|
The 5 inch phone comes with IPS display. The IPS display provides enhanced features, such as optimal viewing angles, color accuracy, invariable color reproduction and better power consumption. The 5 inch display make this smartphone pocket-friendly. The size of the screen is measured diagonally, from corner to corner. A larger screen typically requires more power to illuminate, which can impact battery life. The display of Microsoft Lumia 640 Dual is multitouch capable. Multitouch technology enables the device's touchscreen to detect and interpret multiple touch points on the screen simultaneously.
|Internal storage||8 GB|
|Memory card slot||microSD|
1 GB of RAM is not typically considered to be enough for a smartphone. Most smartphones today come with at least 3 GB or 4 GB of RAM, and some high-end devices have even more. The amount of RAM needed for optimal performance depends on factors such as the operating system, the apps and services you use, and how you use your device. 32 GB of internal storage is generally considered to be the minimum amount of storage you would want in a smartphone. The Lumia 640 Dual has only 8 GB of internal storage. The internal storage of the Lumia 640 Dual (8 GB) can be expanded with a compatible microSD card. MicroSD cards are popular because they're small, lightweight, and easy to use.
|Main camera||8 MP, 3264 x 2448 px, autofocus|
|Selfie camera||1 MP|
The Lumia 640 Dual offers only a single-camera setup. The single camera can still be sufficient for many smartphone users, depending on their photography needs and preferences. The main camera of the Lumia 640 Dual is equipped with autofocus. An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. Very few Android cameras come without autofocus. Lumia 640 Dual is equipped with a basic camera setup, and it does not have any advanced features. Basic camera setups are designed to fulfill the needs of users who prioritize affordability and basic photography requirements.
|GSM 2G bands||850 / 900 / 1800 / 1900|
|Network coverage||2G / 3G|
|Wi-Fi||Wi-Fi 802.11 b/g/n|
|GPS||A-GPS, GLONASS, Beidou|
|Headphone||3.5 mm jack|
The Microsoft Lumia 640 Dual supports 2G and 3G networks only. 3G is obsolete now, because most phones can use 4G and 5G networks. The Microsoft Lumia 640 Dual like all modern smartphones, is capable of connecting to Wi-Fi networks. Wi-Fi networks use radio waves to transmit data between devices and a wireless access point, which is typically connected to a wired network and serves as a hub for wireless devices to connect to the internet or other networks.
The Lumia 640 Dual supports the latest Bluetooth standards, which offers faster data transfer speeds, better range, and improved reliability compared to previous versions of Bluetooth. The Lumia 640 Dual has a GPS receiver. GPS allows smartphones to determine their precise location and provide accurate navigation and mapping services. This includes turn-by-turn directions, real-time traffic updates, points of interest, and alternative routes.
The Lumia 640 Dual isn't NFC (Near Field Communication) capable. NFC is not essential for basic phone functionality, but it can be useful for a variety of tasks and features. The Lumia 640 Dual phone has built-in FM radio. During emergencies or natural disasters when cellular networks may be congested or disrupted, FM radio can provide a reliable source of information and emergency alerts. The Lumia 640 Dual has a microUSB port. MicroUSB is a type of USB connector that was commonly used on older smartphones, tablets, and other mobile devices. The Lumia 640 Dual smartphone has a 3.5 mm headphone jack. A 3.5 mm headphone jack is a small round port, that allows you to connect wired headphones or earphones to the device.
|Type||Li-Ion 2500 mAh|
The Li-Ion 2500 mAh battery gives the smartphone a good battery backup. The Li-ion is a low maintenance battery which offers high energy, is lightweight and does not require periodic full discharge. The battery of Lumia 640 Dual is removable. You can simply buy a new piece from the open market and interchange it easily by yourself.
|Sensors||accelerometer, compass, proximity|
|Specials||Corning Gorilla Glass 3, Dual SIM|
Smartphones today come with a wealth of sensors to facilitate a better user experience. The Microsoft Lumia 640 Dual smartphone has an accelerometer. The presence of an accelerometer in smartphones enables a range of interactive and intuitive functionalities that enhance the user experience and enable innovative applications. This Microsoft phones come with proximity sensor. This proximity sensor detects how close the phone is to an outside object, such as your ear.
The Lumia 640 Dual phone comes with a compass sensor. A compass sensor is a device that provides accurate directions in relation to the earth's North and South magnetic poles. The Dual SIM capability of Microsoft Lumia 640 Dual phone is ideal for businesses wishing to provide staff with a mobile device that can offer separate numbers and bills for both personal and business use. Corning Gorilla Glass is a type of chemically strengthened super-glass.
The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Microsoft Lumia 640 Dual, then don’t hesitate and signal the problem to us.
Microsoft Lumia 640 Dual pictures
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