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Microsoft Lumia 640

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Microsoft Lumia 640 is an middle end phone announced in 2015 which is available in single sim and dual sim variants with LTE and non-LTE versions. It comes with Windows Phone 8.1 OS and is upgradable to the latest Windows 10 OS. The main features of this phone include 1 GB RAM, 8 GB internal memory which is expandable up to 128 GB with micro sd card, 8 MP main camera and 1 MP front camera for taking photos and up to 1080p Full HD video recording. It runs on Snapdragon 400 processor and is powered by a removable battery of 2500 mAh capacity.

Microsoft Lumia 640 Specs

Launch
Announced 2015, March
Body
Dimensions 72.2 mm x 141.3 mm
Thickness 8.8 mm
Weight 145 g
SIM Single SIM and Dual SIM
Display
Size 5 inches
Resolution 720 x 1280 pixels (294 ppi pixel density)
Technology IPS LCD ClearBlack with Corning Gorilla Glass 3 protection
PLATFORM
OS Windows Phone 8.1
Chipset Qualcomm SnapDragon 400
CPU Quad-core 1.2 GHz
GPU Adreno 305
MEMORY
Expandable Memory microSD, up to 128 GB (dedicated slot)
Internal Memory 8 GB
RAM 1 GB
Camera
Rear Camera 8 MP, f/2.2, 28 mm, LED Flash, autofocus with 1080p recording at 30 fps
Front Camera 1 MP  with 720p Video Recording
Battery
Capacity 2500 mAh, Removable
Network
Technology GSM / HSPA / LTE
Connectivity
Bluetooth Bluetooth 4.0
WiFi WLAN IEEE 802.11 b/g/n
NFC No
GPS A-GLONASS, A-GPS, Cellular and Wi-Fi network positioning
USB microUSB v2.0
Other
Sensors Ambient light sensor, Accelerometer, Proximity sensor, Magnetometer, SensorCore
Colors