ASUS ZenFone 2 ZE551ML 16GB Smartphone (Unlocked, Osmium Black)

ASUS ZenFone 2 ZE551ML 16GB Smartphone (Unlocked, Osmium Black)

ASUS ZenFone 2 ZE551ML 16GB Smartphone (Unlocked, Osmium Black)

B&H # ASZF216GBBK MFR # ZE551ML-18-2G16GN-BK

Product Highlights

  • GSM / 4G LTE Capable
  • North American Variant
  • 13MP Rear + 5MP Front Cameras
  • 5-Element f/2.0 Lens + Dual LED Flash
  • Quad-Core 1.8 GHz Intel Atom CPU
  • 16GB Storage Capacity + 2GB of RAM
  • 5.5" IPS LCD Display
  • Full HD 1920 x 1080 Resolution
  • 3000mAh Battery + Dual SIM Card Slots
  • Android 5.0 Lollipop
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This device is Carrier-unlocked and may be used with any GSM carrier that uses a frequency or band that this device supports. A SIM card and service plan must be purchased separately. This device's frequencies can be found in the product Specifications under Cellular Network. Your carrier's available frequencies may be found in the links below.

North American Carriers

South American Carriers

Worldwide Carriers

Questions? Ask our experts:

  • 1Description

Experience dynamic handheld performance with the US Version of the ZenFone 2 ZE551ML Smartphone in Osmium Black from ASUS. This smartphone features a quad-core 1.8 GHz Intel Atom Z3560 processor and a powerful 2GB of built-in RAM. It also comes equipped with 16GB of storage and includes a microSDXC slot that supports cards with up to 64GB of memory for additional storage capacity. The integrated micro-USB interface allows you to connect the device for mass-storage purposes and also serves as a charging port. Additionally, you can use the micro-USB port to connect an optional MHL adapter for outputting video to an external display.

The ZenFone houses a 5.5" IPS capacitive display, which is designed to deliver robust images and color depth. Its 1920 x 1080 screen resolution lets you watch full HD content without pixel loss. For photo capturing, image recording, and video chatting, the ZenFone 2 features a 13MP PixelMaster rear camera and 5MP PixelMaster front camera. Autofocus is built-in and a dual-tone LED flash helps when taking photos in low-light situations. Additional camera modes and features are available, including Super HDR, Low Light, and Super Resolution, to help you get the picture quality that you want.

The ZenFone 2 is also well-equipped for wireless communication. It features Bluetooth v4.0 technology for pairing with other Bluetooth-enabled devices, and 802.11a/b/g/n/ac Wi-Fi for high-speed Internet connectivity. Integrated Wi-Fi Direct and NFC enable you to connect to compatible devices for wireless content sharing. GPS with GLONASS is also on-board for using Google Location and Maps services. The ZenFone 2's 3000mAh battery can deliver hours of enjoyment on a full charge.

Dual Cameras
  • Rear Camera: f/2.0 13 MP, autofocus, blue glass filter, dual LED flash, PixelMaster
  • Front Camera: f/2.0 5 MP, fix focus, wide view, PixelMaster
  • Video Recording: 1080p HD video recording with video stabilization and one-touch still-capture facility
  • Low Light Mode: Increases light sensitivity by up to 400%. It also enhances noise reduction and boosts color contrast by up to 400%, for clear and bright low-light shots with no need for flash.
  • Super HDR Mode: Expands the dynamic range by four times to give the final picture up to 400% more brightness, along with improved color contrast and detail to ensure the photos you capture in any scene with strong backlighting look natural.
  • Super Resolution Mode: Captures and combines four 13MP photos to create a single image of with four times the clarity—up to 52MP.
  • Wide-Angle Selfie Panorama: Captures a panoramic selfie to up to 140°.
  • Beautification Mode: Balances facial features, softens complexions, and removes blemishes in real time.
  • North American Variant / US Compatible LTE
    The ZE551ML is a US variant of the ZenFone 2. The ZE551ML's LTE radio is tuned to frequencies that are most often used in the United States and North America. It can also be used in other parts of the world, however LTE access may be limited or unsupported, depending on the network. To ensure this phone will work with your carrier please check to make sure the frequencies your carrier uses are supported by this phone. The full list of compatible carrier frequencies can be found here, the frequencies this phone supports can be found in the product specs.
    GSM / 4G LTE Wireless Connectivity
    This phone is designed to work on select GSM networks and is 4G LTE capable. LTE is an advanced cellular network data protocol capable of data speeds so fast that they compete with wired broadband internet providers. With an LTE connection, this phone should have no problem streaming HD video, downloading apps, uploading photos, or anything else that requires a high-speed data connection. The phone is also backwards compatible with 3G and 2G data for instances when you can't get LTE. In addition to cellular wireless, this phone also features Bluetooth and Wi-Fi connectivity.

    Note: Not compatible with all cellular networks. Please make sure your provider uses a frequency or band that this phone supports. You can check which bands this phone works with in the Specifications.
    Android 5.0 Lollipop
    The Android operating system integrates heavily with Google's services. Using the card-based Google Now, Android quickly surfaces information for you whenever you need it, powered by the same Knowledge Engine that runs Google's web search. It's a personalized and customizable OS, allowing you to add your favorite apps or widgets to your homescreen. You can even download new themes using the Google Play Store, which offers access to more than one million apps, games, books, music, movies, and more. Android 5.0 Lollipop introduces Google's "Material Design" language and sees a complete overhaul of the look and feel of the OS. Other improvements include an updated notification system, more useful multitasking (now called "Recents"), multi-user support, and a Battery Saver mode.
    Intuitive Design
    The ZenFone 2 was built with the user in mind. Its design incorporates an intuitive control layout, ergonomic arc structure, thin 3.9mm edges, and a 72% screen-to-body ratio. NCVM molding techniques helped achieve the ZenFone 2's metallic look and solid grip, while reducing its overall weight. Despite its slim profile and design, the ZenFone 2 still comes equipped with a full array of access ports and features dual SIM capability.
    BoostMaster Technology
    ASUS BoostMaster Technology is designed to charge you ZenFone 2 at faster than normal speeds—up to 60% in 39 minutes. Coupled with ZenFone 2's large 3000mAh battery, you'll get more power, faster. To take full advantage of BoostMaster technology, you'll need a separately available ASUS 18W power adapter.
    ASUS Enhancements
  • ZenUI: ASUS's mobile user interface that delivers more than 1000 additions to the standard Android interface, including ZenMotion, SnapView, Trend Micro Security, and ZenUI Instant Updates
  • Glove Touch Technology: The ZenFone 2 responds to every touch, swipe, and gesture, even if you're wearing gloves
  • AudioWizard: Provides better audio experiences depending on different listening modes
  • Connectivity
  • Wi-Fi: Dual-band 802.11a/b/g/n/ac
  • Wi-Fi Direct
  • Near Field Communication (NFC) support
  • Bluetooth: Version 4.0, A2DP, EDR
  • Additional Features
  • 5GB free lifetime ASUS WebStorage
  • MP3/WAV/eAAC+ player
  • MP4/H.264 player
  • Document viewer
  • Photo/video editor
  • UPC: 889349041642
    In the Box
    ASUS ZenFone 2 ZE551ML 16GB Smartphone (Unlocked, Osmium Black)
  • 7W Power Adapter
  • Micro USB Charging/Data Cable
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Operating System Android 5.0 Lollipop
    Memory RAM: 2 GB
    Chipset Intel Atom Z3560
    Processor 1.8 GHz Intel Atom Quad-Core
    GPU 533 MHz PowerVR G6430
    Storage 16 GB
    Size 5.5"
    Display Colors 16.0 Million
    Pixel Density 403 ppi
    Display Technology IPS LCD
    Screen Coating Gorilla Glass 3
    Sensors Ambient light sensor, Gyroscope, Magnetometer, Proximity sensor
    Native Resolution 1920 x 1080
    Accelerometer Yes
    Input/Output Connectors
    Ports 1x USB 2.0 - Micro
    Audio 1x 1/8" (3.5 mm) Headphone/Microphone
    1x Integrated Speaker
    Flash Media Slot 1x microSDXC
    Sim Card Size Card  1: Micro
    Card  2: Micro
    Cellular Network 2.5G (GSM/GPRS ) MHz:850, 900, 1800, 1900 
    3.5G (HSPA+, UMTS/WCDMA ) MHz:850, 900, 1700, 1900, 2100 
    4G (LTE ) Bands:1, 2, 3, 4, 5, 7, 8, 17, 20 
    Wi-Fi 802.11a/b/g/n/ac
    Bluetooth Bluetooth  4.0 + EDR
    NFC Yes
    GPS Yes
    Front Camera
    Resolution 5.0 MP
    Aperture f/2.0
    HDR Yes
    Image Stabilization Digital
    Rear Camera
    Resolution 13.0 MP
    Aperture f/2.0
    Rear Focal Length Not Specified By Manufacturer
    Rear HDR Yes
    Rear Camera Flash Yes
    Image Stabilization Digital
    Keyboard Virtual
    Water Resistant No
    Battery Internal Lithium-Polymer (3000.0 mAh)
    Dimensions (WxHxD) 6.0 x 3.0 x 0.4" / 152.5 x 77.2 x 10.9 mm
    Weight 6.00 oz / 170 g
    Packaging Info
    Package Weight 0.85 lb
    Box Dimensions (LxWxH) 6.4 x 3.5 x 2.4"
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