ZenFone 4 Pro (ZS551KL)

    ZenFone 4 Pro (ZS551KL)
    Finish / Color

    Moonlight white, Pure Black

    Capacity

    Internal storage

    64GB / 128GB

    MicroSD card

    Supports up to 2TB

    Google Drive

    100GB free space (1 year)

    Weight and Dimensions
    156.9mm
    (6.17 inches)
    75.6mm
    (2.97 inches)
    7.6mm
    (0.30 inches)

    Weight: 175 grams (6.17 ounces)

    Display

    5.5-inch AMOLED display

    Bluelight filter for eye care

    10-finger capacitive touch

    Fingerprint sensor

    Processor

    CPU: Qualcomm Snapdragon 835 Octa-core processor

    GPU: Adreno™ 540

    Memory

    Up to 6GB

    Main Camera

    12 megapixels Sony IMX362 sensor

    F1.7 aperture

    25mm focal length

    1.4µm pixel size

    83° field of view

    Electronic image stabilization for shake-free videos

    LED flash

    4-axis, 4 stops optical image stabilization

    Color correction (RGB) sensor

    0.03 seconds fast focus

    DualPixel PDAF auto-focus

    Laser focus

    Continuous focus

    PixelMaster 4.0 camera modes:

    Auto mode with low light and HDR Pro features

    Pro

    Beauty

    Super Resolution (48 megapixels)

    GIF Animation

    Panorama

    Slow motion

    Time Lapse with power saving mode

    Zoom Camera

    16 megapixels Sony IMX351 sensor

    2x optical zoom

    50mm focal length

    Video Recording

    4K UHD at 30 fps video recording

    Electronic image stabilization for shake-free videos

    Take still photo while recording video

    Front Camera

    8 megapixels Sony IMX319 sensor

    1.4µm pixel size

    F1.9 aperture

    87.4° field of view

    PixelMaster 4.0 camera modes:

    Beauty (default)

    140° Selfie Panorama

    Auto mode with low light and HDR Pro features

    GIF Animation

    Audio

    Speaker

    Dual speakers

    Mic

    Three internal mics with ASUS Noise Reduction Technology

    FM Receiver

    FM radio

    Wireless Technology

    WLAN 802.11 a/b/g/n/ac

    Bluetooth 5.0

    Wi-Fi direct

    NFC

    Navigation

    GPS, AGPS, GLONASS, BDS

    SIM Cards

    SIM card slots:

    Slot 1: 2G/3G/4G Nano SIM card

    Slot 2: 2G/3G/4G Nano SIM card

    Dual SIM dual standby

    Both SIM card slots support 3G WCDMA / 4G LTE network band. But only one SIM card can connect to 3G WCDMA / 4G LTE service at a time.

    Slot 2: Also supports up to 2TB MicroSD card

    Network Standard

    FDD-LTE, TD-LTE, WCDMA/HSPA+/DC-HSPA+, GSM/GPRS/EDGE

    Data rate

    LTE Cat 12 3CA UL 100 / Cat12 DL600 Mbps

    TW/WW

    DC-HSPA+: UL 5.76 / DL 42 Mbps

    FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 17,19, 20, 28)

    TD-LTE (Bands 38, 39, 40, 41 (2545~2655MHz))

    WCDMA (Bands 1, 2, 3, 4, 5, 6, 8, 19)

    EDGE/GPRS/GSM (850, 900, 1800, 1900MHz)

    US/CA/BR/CO

    FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30)

    TD-LTE (Bands 38, 39, 41)

    WCDMA (Bands 1, 2, 3, 4, 5, 6, 8, 19)

    EDGE/GPRS/GSM (850, 900, 1800, 1900MHz)

    JP/IN

    FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30)

    TD-LTE (Bands 38, 39, 40, 41)

    WCDMA (Bands 1, 2, 3, 4, 5, 6, 8, 19)

    EDGE/GPRS/GSM (850, 900, 1800, 1900MHz)

    ASUS phone 4G/LTE band compatibility varies by region, please check compatibility with local carriers.

    Sensor

    Fingerprint, Accelerator, E-Compass, Gyroscope, Proximity sensor, Ambient light sensor, RGB sensor

    External Buttons and Connectors
    Fingerprint sensor On/Off
    Sleep/Wake
    Volume up/down 3.5mm audio jack
    (1 Headphone/Mic-in)
    Built-in speaker USB-C connector
    Battery

    3600mAh (non-removable)

    Power Adapter

    Output: 9V 2A 18W

    Operating System

    Android™ 7 with new ASUS ZenUI 4.0

    ASUS ZenUI includes:

    Themes
    Calculator
    Clock
    Contacts
    File Manager
    Mobile Manager
    Phone
    SelfieMaster
    Settings
    Weather
    Gallery
    Camera
    Laser Ruler
    Sound Recorder
    In the Box

    ZenFone 4 Pro with Android™ 7 and new ASUS ZenUI 4.0

    ASUS earphone with Mic

    Micro-USB Cable

    Bumper

    Ejector Pin

    USB Power Adapter

    Documentation (User Guide, Warranty Card)

    Note

    Specifications and contents may vary by region.