Nokia 1640

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Code NHK-5NX 
Announced 1996 


  • Large, 16-character, illuminated LCD display
  • Indicators for field strength and battery status
  • Battery charging indication


  • Up to 199 alphanumeric SIM memory locations, depending on SIM card
  • Recall from memory and scrolling by name or number

Security and cost control

  • Lock phone with selectable code
  • Keyguard to prevent accidental dialling
  • Call timer
  • Call cost counter
  • One key dialling
  • Receive SMS
  • Call barring

Adjustable controls

  • Lights on /off
  • Keypad tone on /off
  • Adjustable ringing volume
  • 5 selectable ringing types

Key specifications:

  • Dimensions: 160 x 58 x 28 mm
  • Weight: 250 grams / 8.8 ounces


  • GSM1800