https://techinstyle.asus.com/hub/mobile/

    ZenFone 4 Pro (ZS551KL)

    10x Zoom. 8x Light Sensitivity. 6GB RAM.
    Dual Rear Cameras
    See a bigger and brighter world
    * Compared to typical smartphone camera with 16MP resolution, F1.7 aperture and 1.12µm pixel size.
    Sony flagship
    IMX362
    main camera
     
    16MP
    zoom camera
    Zoom camera
    10X
    total zoom
    ASUS SuperPixel™ Camera
    8x brighter and clearer photos in low light
    * Compared to typical smartphone camera with 16MP resolution, F1.7 aperture and 1.12µm pixel size.
    8X
    light sensitivity*
    IMX362
    Sony sensor
    F1.7
    aperture
    1/2.55”
    sensor size
    1.4µm
    pixel size
    OIS
    long exposure
    up to 1/4 sec
    6P
    lens
    Learn more about ASUS SuperPixel™ Camera
    Large F1.7 lens aperture
    F2.2 aperture
    F1.8 aperture
    (49% more light than F2.2)

    ZenFone 4 Pro
    F1.7 aperture
    (67% more light than F2.2)
    Large 1.4µm pixel size
    1.0µm pixel size
    1.22µm pixel size
    (48% more light than 1.0µm)

    ZenFone 4 Pro
    1.4µm pixel size
    (96% more light than 1.0µm)
    ASUS SuperPixel™ Engine
    4-Stop OIS
    PixelMaster Technology
    Capture reality, fast and steady
    0.03S
    TriTech+™
    technology
    dual pixel
    PDAF
    laser
    auto-focus
    subject-tracking
    auto-focus
    OIS & EIS
    4K
    UHD video
    recording
    RGB color
    correction sensor
    Learn more about PixelMaster technology
    Catch the moment with speed and precision
    0.03S
    dual pixel PDAF
    0.03S
    subject-tracking auto-focus
    3X
    laser focus distance
    dual pixel
    PDAF
    second-generation
    laser auto-focus
    subject-tracking
    auto-focus
    5%
    600,000 pixels for light detection
    Phase Detection Auto-Focus
    100%
    12,000,000 pixels for light detection
    ASUS Dual Phase Detection Auto-Focus
    Blur-free photos and steady videos
    4- axis
    OIS
    8directions
    OIS compensation
    4stops
    OIS stabilization
    3- axis
    EIS
    6directions
    EIS compensation
    Natural colors, incredible details
    RGB color correction sensor
    4K
    UHD video recording
    PixelMaster Camera Modes
    Shoot like a pro, capture the fun
    RAW support
    Pro mode
    Learn more about PixelMaster camera modes
    RAW file support
    Pro mode
    Up to
    32S
    long exposure
    Modes for creative fun
    Auto
    Panaroma
    Pro
    GIF Animation
    Beauty
    Slow Motion
    Super Resolution
    Time Lapse
    Selfie Panorama
    2x Optical-Zoom Camera
    A camera that brings you closer
    16MP
    Sony image sensor
    2X
    optical-zoom
    50mm
    focal length
    Portrait mode
    Learn more about optical-zoom camera
    Portrait mode
    Selfie Camera
    Beautiful selfies, day or night
    * Compared to typical smartphone camera with 16MP resolution, F2.0 aperture and 1µm pixel size.
    IMX319
    Sony sensor
    F1.9
    aperture
    1.4µm
    pixel size
    140°
    Selfie Panorama
    2X
    light sensitivity*
    3- axis
    EIS
    PDAF
    ASUS SelfieMaster technology
    Learn more about ASUS SelfieMaster technology
    Smart beautification
    10- level
    beautification
     
    Photo
    beautification
     
    Video
    beautification
     
    BeautyLive
     
    Collage
     
    Slideshow
    Livestream beautification
    Performance
    Efficiently powerful, effortlessly fast
    Qualcomm® Snapdragon™
    835
    Mobile Platform
     
    10nm
    CPU process
    Up to
    6GB*
    RAM
    Up to
    128GB*
    ROM
    Live fingerprint sensor
    0.3S
    unlock
    2.4GHz & 5GHz
    Dual-band
    Wi-Fi
    * Specs may vary by countries and models.
    CPU + GPU
    Gaming made easy
    20%
    improved performance
    Powerful Network
    Ultrafast network connectivity
    LTE
    Cat12
    600Mbps download
    LTE
    3CA
    4x4 MIMO support
    Wi-Fi
    11AC
    866Mbps download
    Battery & BoostMaster™
    Charge faster, work and play longer
     
    3600mAh
    battery
    Fast charging
    by 5 mins charged
    Up to
    21hrs
    720p video playback
    Up to
    17hrs
    Wi-Fi web browsing
    Design
    Timeless Zen design, simplicity
    2.5D
    Gorilla Glass
    2.1mm
    slim bezel
    7.6mm
    thin edge
    NMT
    metal unibody
    Display
    Sensational display with auto color tuning
    1920X1080
    resolution
    500nits
    brightness
    100%
    NTSC
    Splendid technology
    Learn more about display
    True2Life
    SonicMaster 4.0
    Unrivalled smartphone audio
    4X
    CD quality
    dual speakers
    3 noise-cancelling microphones
    Smart AMP
    Hi-Res Audio
    DTS Headphone:X
    Learn more about SonicMaster 4.0
    Noise reduction microphone, high fidelity headphones
    ZenUI 4.0
    Simpler. Faster. Smarter.
    Learn more about ZenUI 4.0
    Wallpaper Slideshow
    Page Marker
    ZenUI Safeguard