Tech specs: Microsoft Lumia 640

Learn about the key features and specifications of the Microsoft Lumia 640.

 

On this page:

 

 

Key features

  • Windows Phone 8.1
  • 8MP rear facing camera with LED flash
  • Popular Microsoft apps (Cortana, Skype, Office, One Drive)
  • Wi-Fi calling
  • 4G LTE data speeds with band 12 support

 

Specs

  • Battery
    • Usage time: 13-17 hours
    • Standby time: 672 hours
    • Battery size/type: 2500 mAh
  • Keyboard
    • Touch screen with on-screen keyboard
  • Memory
    • 1 GB RAM, 8 GB ROM
    • Supports up to 128 GB MicroSD card
  • Operating System
    • Windows Phone 8.1 with Lumia Denim
  • Processor
    • Qualcomm® Snapdragon™ 400 Quad core 1200 MHz

 

  • Anti-theft
    • No
  • Advanced messaging
    • No
  • Device Unlock App
    • No
  • Emergency Alerts (WEA)
    • Yes
  • SIM card
    • Micro
  • System Manager (Carrier IQ)
    • No
  • T-Mobile Video Calling
    • No

Connectivity

  • Wi-Fi 802.11 b/g/n
  • Wi-Fi web browsing
  • Wi-Fi sharing
  • Wi-Fi Calling
  • NFC

 

  • MicroUSB
  • Bluetooth® 4.0, Advanced Audio Distribution Profile (A2DP) 1.2, Audio/Video Remote Control Profile (AVRCP) 1.4, Generic Attribute Profile (GATT), Hands-free profile (HFP) 1.6, Human Interface Device Profile (HID), Object Push profile (OPP) 1.1, Personal Area Network Profile (PAN) 1.0, Phone Book Access Profile (PBAP) 1.1, Message Access Profile (MAP)
  • Internet Explorer 11

Network

  • 4G LTE
    • FDD network12: Band 17 (700MHz), Band 2 (1900 MHz), Band 4 (1700/2100 MHz), Band 5 (850MHz), Band 7 (2600 MHz), Band 28 (700 MHz), Band 12 (700 MHz)
  • 2G (GSM, GPRS, and EDGE)
    • 850, 900, 1800, 1900

 

  • HD Voice Capable
    • Yes
  • VoLTE Capable
    • Yes

Camera

  • 8 MP (rear facing)
  • 2.4 MP (front facing)
  • 4X digital zoom
  • LED Flash

 

  • Auto focus
  • Face detection
  • Multiple shooting modes
  • Video recording

Multimedia

  • Stereo audio (with headset)
  • Audio support: MP3, AAC, AAC+, WMA, MPEG4, WAV
  • Image support: GIF, PNG, BMP

 

  • Video support: 3GPP, H.263, H.264, WMV, MPEG4
  • HAC support: M3, T3