This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz 3G: WCDMA: 2100MHz(1)\/900MHz(8) 4G:FDD-LTE 2100MHz(1) \/1800MHz(3) It's unlocked for worldwide use, customers please take a check to see if your local area network or the communication operator you are using is compatible with this phone before purchase. You can also go to this topic [===Official Help Center=== How To Check If This Phone Can Be Used In Your Country] to find how to confirm this. 

 * 5000mAh Built-in lithium ion Battery. Long time standby

  

 * Can be used as Power Bank, supports Reverse charge ( via a OTG cable)

  

 * Corning Gorilla fourth-Generation screen, resistance to abrasion resistance stronger

  

 * 13.0MP Camera Rear Camera, laser autofocus


  

 
  
   
    
     Basic Information        
   
   
    
      Model
    
       ASUS Zenfone Max ZC550KL
   
   
    
      Band
    
      2G: GSM : 850MHz\/900MHz\/1800MHz\/1900MHz
   
   
    
      3G: WCDMA:  2100MHz(1)\/900MHz(8)
             TD-SCDMA: 2100MHz(34)\/1900MHz(39) 
   
   
    
      4G: FDD-LTE: 
            2100MHz(1) \/1800MHz(3)
             TDD-LTE:
             2600MHz(38) \/1900MHz(39)\/2300MHz(40)\/2500MHz(41)\/(2555-2655MHz only)
   
   
    
      SIM Card
    
      Dual Micro SIM Card Dual Standby
   
   
    
      Service Provide
    
      Unlocked 
   
   
    
      Style
    
      Bar Phone
   
   
    
      Color
    
      Black,White
      Notice: The black color is black Leather texture back cover.
   
   
    
      Shell Material      
    
      Plastic
   
   
    
      
   
   
    
     System
   
   
    
      OS
    
      ZenUI (Based on the Android 5.0 Lollipop) 
   
   
    
      CPU
    
      Snapdragon 410 (MSM8916), 64Bit Quad core, 1.2GHz
   
   
    
      GPU
    
      Adreno 306
   
   
    
      ROM
    
      16GB
   
   
    
      RAM
    
      2GB LPDDR3 
   
   
    
      
   
   
    
     Screen
   
   
    
      Display Size  
    
      5.5 inch
   
   
    
      Type
    
      OGS, IPS capacitive Screen Corning Gorilla Glass 4
      ASUS TrueVivid laminating technology, 178\u02da visual Angle
   
   
    
      Resolution
    
      1280*720 (HD 720)
   
   
    
      
   
   
    
     Support Format
   
   
    
      Audio File Format
    
      WAV, AMR, MP3,AWB
   
   
    
      Video File Format
    
      3GP, MP4, RMVB
   
   
    
      Image File Format
    
      GIF, JPEG, BMP, PNG
   
   
    
      E-book Format
    
      TXT, PDF
   
   
    
      FM Radio
    
      Yes, earphone needed
   
   
    
      Earphone Port
    
      3.5mm
   
   
    
      Card Extend
    
      Supports an external Micro SD card up to 64GB
   
   
    
      
   
   
    
     Data Transfer & Connectivity
   
   
    
      Data transfer
    
      USB\/Bluetooth
   
   
    
      Mobile internet
    
      WAP\/WiFi
   
   
    
      
   
   
    
     General  
   
   
    
      C