Microsoft Lumia 640 XL LTE Dual SIM

Technology

• 2G Network
•  GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
• 3G Network
•  HSDPA 850 / 900 / 1900 / 2100
• 4G Network
•  LTE 800 / 850 / 900 / 1800 / 1900 / 2100 / 2600
• GPS
•  Yes, with A-GPS, GLONASS
• SIM
•  Dual SIM (Micro-SIM, dual stand-by)

Display

• Type
•  IPS LCD capacitive touchscreen, 16M colors
• Size
• 
   5.7 inches
• Pixel density
•  ~259 ppi
• Multitouch
•  Yes
• Protection
•  Corning Gorilla Glass 3

Built

• Dimensions
•  157.9 x 81.5 x 9 mm
• Weight
•  171g

Camera

• Primary
•  
  13 MP,( 4128 x 3096) pixels
• Features
•  Carl Zeiss optics, autofocus, LED flash
• Video
•  Yes, 1080p@30fps
• Secondary
•  5 MP

Hardware

• OS
•  Microsoft Windows Phone 8.1 with Lumia Denim
• Chipset
•  Qualcomm Snapdragon 400
• CPU
•  Quad-core 1.2 GHz Cortex-A7
• GPU
•  Adreno 305
• Sensors
•  Accelerometer, proximity,Compass
• Internal Memory
•  8 GB, 1 GB RAM
• Extra Storage
•  microSD, up to 128 GB

Multimedia

• Alert types
•  Vibration; MP3, WAV ringtones
• Speakerphone
•  
  Yes
• 3.5 mm Jack
•  Yes
• Radio
•  FM radio

Connectivity

• GPRS
•  Yes
• EDGE
•  Yes
• Speed
•  HSDPA
• WLAN
•  Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot
• Bluetooth
•  v4.0, A2DP
• USB
•  microUSB v2.0
• NFC
•  Yes

Other features

• Messaging
•  SMS(threaded view), MMS, Email, Push Mail, IM
• Browser
•  HTML5
• Colors
•  Matte cyan, Orange, Black, Matte white, Glossy white
• Java
•  Yes, via Java MIDP emulator
• Miscellaneous
• 
  - Active noise cancellation with dedicated mic
  - MP3/WAV/eAAC+/WMA player
  - MP4/H.264/WMV player
  - OneDrive (30 GB cloud storage)
  - Document viewer
  - Photo/video editor

Power management

• Battery
•  Li-Ion 3000 mAh battery
• Stand-by
•  Up to 936 hours
• Talk time
•  Up to 31 hours 20 min