ASUS ZenFone 2 ZE551ML 64GB Smartphone (Unlocked, Glacier Gray)

ASUS ZenFone 2 ZE551ML 64GB Smartphone (Unlocked, Glacier Gray)

ASUS ZenFone 2 ZE551ML 64GB Smartphone (Unlocked, Glacier Gray)

B&H # ASZF264GBSL MFR # ZE551ML-23-4G64GN-SR
No Longer Available

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 2.3 GHz Intel Atom CPU
  • 64GB Storage Capacity + 4GB 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 should work fully with the carriers listed below with green bars. Yellow bars denote partial network coverage. A SIM card and service plan must be purchased separately. Network compatibility listed here is for reference only and does not guarantee phone compatibility.

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ASUS ZE551ML Overview

  • 1Description

Experience dynamic handheld performance with the US Version of the ZenFone 2 ZE551ML Smartphone in Glacier Gray from ASUS. This smartphone features a quad-core 2.3 GHz Intel Atom Z3580 processor and a powerful 4GB of built-in RAM. It also comes equipped with 64GB 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.
    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
  • In the Box
    ASUS ZenFone 2 ZE551ML 64GB Smartphone (Unlocked, Glacier Gray)
  • 18W Power Adapter
  • Micro USB Charging/Data Cable
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    ASUS ZE551ML Specs

    Operating System Android 5.0 Lollipop
    Memory 4 GB
    Chipset Intel Atom Z3580
    CPU 2.3 GHz Intel Atom Quad-Core
    GPU 533 MHz PowerVR G6430
    Storage 64 GB
    Size 5.5"
    Native Resolution 1920 x 1080
    Display Colors 16.0 Million
    Pixel Density 403 ppi
    Display Technology IPS-Type LCD
    Screen Coating Gorilla Glass 3
    Input/Output Connectorsyabertfactvtswsuvf
    Ports 1 x USB 2.0 - Micro
    Audio 1 x 1/8" / 3.5 mm Headphone/Microphone
    1 x Integrated Speaker
    Flash Media Slot 1 x microSDXC
    SIM Card Size Card 1: Micro
    Card 2: Micro
    GSM 2G GSM, GPRS: 850, 900, 1800, 1900 MHz
    GSM 3G/3.5G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
    4G LTE LTE: 1, 2, 3, 4, 5, 7, 8, 17, 20 Bands
    Wi-Fi Wi-Fi 5 (802.11ac)
    Bluetooth Bluetooth 4.0 + EDR 
    NFC Yes
    GPS Yes
    Sensors Ambient Light Sensor, Gyroscope, Proximity, Accelerometer
    Water Resistance None
    Keyboard Virtual
    Battery Internal Lithium-Ion (3000.0 mAh)
    Dimensions (W x H x D) 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 0.9 lb
    Box Dimensions (LxWxH) 6.4 x 3.4 x 2.4"

    ASUS ZE551ML Reviews

    ZenFone 2 ZE551ML 64GB Smartphone (Unlocked, Glacier Gray) is rated 4.2 out of 5 by 148.
    Rated 5 out of 5 by from Smartest of the Smart phones!!!!! This is one great device, its an absolute gem, with style ,speed and leaves most of it competition eating its dust including the apple iphone 6....its a well balanced phone with good battery life, 4gb ram, 64 gb internal memory with upto 128gb micro sd support....the display is bright and crisp and the camera is also very good even in low light....its apt for gamers and multitasking users....and last but not least its value for money gives devices like LG g4,One plus, HTC a run for their money....Too Good ...i recommend this all and with B&H it also comes with great offer of free power bank and a $20 gift thats icing on the cake :D
    Date published: 2016-04-21
    Rated 1 out of 5 by from Dead On Arrival I was so excited to get this phone, but unfortunately, the device I received refused to charge/turn on straight out of the box. The LED light does not turn on, even after trying multiple chargers. After researching some solutions, I found this is a common issue with these phones and may be due to a software issue. It sounds like an update may help, but that's only if you can get the phone to power on. After trying all the tips, nothing worked - so I am returning today after three days of attempting to get my new phone to work. I am really bummed out - the phone sounds like everything I wanted, but I am not willing to risk future issues with another one. Just be aware that you may run into similar problems if you allow your device to die completely, or when connecting to a laptop via USB.
    Date published: 2016-06-06
    Rated 3 out of 5 by from review update The phone is still a good deal, but don't expect any customer service or warranty repair if you need it. Basically, normal wear and tear from daily usage qualifies as voiding your warranty. Asus uses the much-despised repair facility Pegatron, which happens to be located in my hometown. I actually walked in their door to see if I could drop off my phone, have them see if my cosmetic damage voided my warranty, etc. They were as responsive as a corpse, directing me only to Asus' customer service phone number.
    Date published: 2016-05-02
    Rated 5 out of 5 by from Waited a long time to buy a new phone and dont regret it! The Asus Zenphone2 is hands down the fastest and snappiest phone I've used. I'm a Network Admin by day and play with lots of phones. The Camera is amazing to be honest and rivals iPhones and Galaxies all day. Intel cpu and 4 gb of ram? Can't beat it for the price. The battery can technically last you all day but if you are a real heavy user (cant get off your phone), you will have to charge it. For normal users, it will be fine. The ZenUI works as it should and personally, I like it. It's clean and has all the basic apps/tools you need on a phone. If you are looking for a new Android phone, you won't be disappointed.
    Date published: 2015-07-10
    Rated 1 out of 5 by from Not happy I have had this phone exchanged straight after I received it as it was heating up to much. Now after using it for 4 months, I have a problem with charging the battery. I wish I would have returned it straight away at the first place. I'm not happy with this phone quality at all. I mainly purchased it as it has two sim slots & meant to have a good camera. However the camera is also not functioning well. Very slow and often results blurry images. Contacted Asus and since I have moved overseas they told me to go to their local agent and there might be charges applicable. I contacted the local agent they told me to go back to the retailer...the retailer said to contact Asus.Never buy anything Asus ever again.
    Date published: 2015-11-26
    Rated 5 out of 5 by from Great Phone My wife decided to join this century and step up to a smart phone. We already have an android tablet , so I wanted to stick with Android ( plus it is better than IOS). The only phone that can come close to this phone is the OnePlus One. IT is supper responsive thanks to the 4gb of Ram. We have had no problem with any apps not working due to the Intel processor. My wife is not a heavy user of her phone and it does eat battery a little more than it should, but with the latest firmware update it has gotten better.In short I would highly recommend this phone. For $ it is a steal. IS it better than a Nexus 6 or LG G4? No it is not, but it cost a fraction of what those devices cost and will hang right there with them.
    Date published: 2015-07-12
    Rated 5 out of 5 by from Incredible Value, Incredibly affordable Asus didn't completely hit it out of the park with the Zenphone 2. It more closely resembles an inside-the-park homerun, which I'll explain at the conclusion. The pros: 1. Ambidextrous design The power button located center-top and the rocker for volume is located back-center-upper. The idea was to make the phone equally easy for lefties as for righties. If you're left handed you will particularly appreciate that the designers didn't ignore you. (But more about that power button later.) 2. The Feel The curve of the body fits well in the hand and it's neither too light nor too heavy. It feels right. I ditched a ZTE Zmax phone because it was too flat and felt uncomfortable. And in my experience, all else being equal, the flatter the phone, the greater the risk of it sliding out of your hands, though this can be negated by a comfortable, grippy case. 3. The Speed This phone is lightning fast. The combination of CPU (Quad-core 2.3 GHz Intel Atom Z3580), RAM (4GB) and GPU (PowerVR G6430) is better than anticipated and I anticipated it would be excellent. It opens apps rapidly, allows you to move around the device with ease and with virtually no lag. But I discovered another remarkable contributor to its speed. This phone has a groundbreaking 60 milliseconds touch response time, meaning it reacts faster to your fingers on the screen. Clearly, Asus paid great attention to the details for speed and it shows. You can actually see and feel the difference. And lest I forget that Intel CPU is a more powerful 64 bit iteration. 4. The Screen Finished with a protective layer of Gorilla Glass 3, the 5 1080x1920 screen can be manually color adjusted, or for convenience there's a simple vivid setting which makes the color saturation considerably deeper. No, it's not 4K resolution, but really folks, at standard phone reading distance human eyes (young ones in excellent shape at that) can detect a difference up to about 450 pixels per inch, so at 403 ppi you haven't lost much here. And if your eyes aren't young and/or perfect, you're probably giving up nothing. It's on larger screens that 4K becomes far more important. Brightness is adequate for outdoor use and there's an auto-brightness setting so you don't have to fumble when heading outdoors. 5. Dual SIM slots These allow for the classic 2-in-1 arrangement one phone serving two lines. You can have your personal line on one SIM card, and your business line on the other - or a domestic line on one SIM and a foreign travel line on the other SIM. One couple told me that when they travel, they take just one phone equipped with their two SIM cards. You may never use two SIM cards, but both slots are there should you need them. 6. Internal Storage 64 GB of internal memory will mitigate the need to add an external card for some users, though a microSD slot is provided. Asus says you can add up to 64GB but users are reporting deploying 128GB cards with no issues. 6. The Camera The f/2.0 autofocus camera deploys a Toshiba sensor and Asus has really devoted a great deal of effort to a huge variety of available settings. The camera is quick and my favorite feature is the dual flash, which provides better and more realistic color quality. At 13 megapixels the rear camera compares well to most upper end phones except for the true top of the line flagships, which have 16 to 20 megapixels. The front camera has a journeyman's 5 megapixels. 7. Charging System The special charging system included with the phone is quite rapid, rated at a 60% charge in 39 minutes. Considering the battery's 3000mAh capacity, the charging speed is admirable. This is done by sort of super-charging the power of the USB connector. 8. The Wireless The Zenphone 2 includes dual band (2.4Mhz and 5Mhz) AC wireless in addition to the b/g/n bands. This affords very fast downloads and web pages render lickety-split. The phone can also be used as a hotspot to share your LTE Internet connection with other devices, such as connecting your laptop when no wifi is available. 9. Shortcuts There are a few gesture shortcuts that are fun, easy and convenient. For example, stroking a large C on the screen instantly deploys the camera, which is great when you need quick access. 10. Updates Likely because of their culture of updating computer motherboard bios, Asus has already provided at least two system updates. One could expect more updates in the future, and likely more frequently than competitors. 11. The Looks Asus also opted to make an impression, well, more of a statement, with color choices to match varied personalities. For the conservative user there's black (*yawn*) and a cool glacier gray. For the bolder among us there's a gold and a stunning ruby red. The backs are plastic, but the brushed finish invokes a metal look. The neutral: There are a great many iterations of the Zenphone 2. The various models span two different processors, three different internal memory capacities (16, 32 and 64), two different RAM options (2GB and 4GB) and even two different screen types (720 and 1080). B&H has removed much of the guesswork by carrying only two basic variants (except for color). This simplifies matters immensely. The 16GB versions have the basic CPU and 2GB of RAM. The 64GB versions have the faster CPU and 4GB of RAM. That's it. Both have the 1080 screens. Makes choosing a lot easier. I opted for the 64GB version and a 16GB for my girlfriend. The cons: 1. Power Button While I don't mind the location of the power button, it does not extend outward enough to easily turn on and off with one hand. However, Asus provides a very cool alternative. Remember the clapper (clap on, clap off)? On the Zenphone 2 you just tap the screen twice and it's on. Another two taps and it's off. Well, really it's in sleep mode, but you'll only need the power button to completely power down. 2. B L O A T W A R E This phone has so much bloatware it should ship with a bottle of Pamprin. Seriously, the biggest objection to Android phones is the massive quantity of apps that are pre-installed. In this case it seems Asus' intent was a place in the Guinness Book of World Records, though most of us would see that as a dubious, if not laughable, honor. Some of the apps can be fully uninstalled, but you have to go through them individually to see which can and which can't. (Four star award for time wasting.) There's an app to disallow apps at start-up. It doesn't always work properly, but I'm pretty sure they'll come up with an app to override it. Sheesh! Note to Industry: ENOUGH ALREADY! LET US SELECT OUR OWN APPS! (Or at least have a setting to make your choices disappear by uninstalling with one click.) 2. Battery Battery life is average at best for a 3000mAH, likely due to two factors. First, all that bloatware consumes mass quantities of electrons. The second culprit is the Lollipop 5.0 operating system. Many phones that originally shipped with KitKat encountered reduced battery life when upgraded to Lollipop. This has been widely reported and it doesn't seem to matter what device or brand it's on. Hopefully this can be fixed in a future Android update. Also, the battery is not removable, a pet peeve of mine. 3. No HD Voice or Wifi Calling As with almost all unlocked-out-of-the-gate phones, there is no HD voice or wifi calling, but that's a small price to pay for the flexibility of owning a device that will work on several carriers' networks especially one in this price range and as feature-packed as the Zenphone. Sadly, it wouldn't take much to add these features to the manufacture of unlocked phones and I'm pretty sure that's just over the horizon, but for now *sigh* 4. Design Flaw I discovered the hard way that this phone will not communicate with a PC through a USB 3.0 port. It does just fine with a USB 2.0 port. I've reported this to Asus and hopefully they'll fix it. Summary: I would encourage you to watch YouTube reviews. Reviewers commonly compare the Zenphone 2 to flagship phones at twice the price or more. The reason is simple: There's so little serious competition in this price range. Yes, the reviewers inevitably find a couple of things about which to complain (that's their job), but invariably they summarize by marveling at the fact that these phone are only $299 ($199 for the 16GB version). You can buy two or more of these for the price of a single flagship phone. And you're not sacrificing much. Dollar for dollar, this is one of the best if not THE best $300 phone you will find. Think of it this way You're getting roughly 95% of a flagship phone for less than half the cost. So, back to that baseball metaphor at the opening the inside-the-park homer is a more rare combination of a perfectly placed hit combined with blazing running speed, which pretty well sums up the Zenphone 2. Hope that helps
    Date published: 2015-07-20
    Rated 5 out of 5 by from Excelent phone with unbeleivable low price! ZenFone 2 is not just a smart phone - it is a laptop in a pocket. With Intel Atom Quadcore CPU and 4 GB memory it is exactly that. Very powerfull and with a contemporary design. The 13 MP camera is coming with many features, which normally are available on DSLR cameras. I am a big fan of ASUS products - I bouhht a tablet ASUS Transformer, Desktop PC and a laptop. This brand is bringing outstanding quality and durability. My PC is working like a tank already 4 years without any problems. I recommend ZenFone 2 for another important reason - longlasting battery.The performance of the battery is way better than iPhones's and Samsung Galaxy. I tested all the tree and ZenFone is winner.
    Date published: 2016-01-10
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    can you ship to Algeria ?
    Asked by: Anonymous
    You may calculate your actual shipping options/order totals by adding the items you want to a shopping cart. It will then list the shipping options, descriptions, ETA's and fees to your location.
    Answered by: Heather S.
    Date published: 2018-08-26


    Is this US version? will buyer get US warranty?
    Asked by: Md Israk Nur S.
    In situations where B&H offers both a USA and an imported version of a product, we label each version clearly and explicitly. If a product does not have an indication either way, it is understood to be by default a USA product. In situations where only a USA version is offered it will not be labeled USA. This product has a one year, limited manufacturer's warranty.
    Answered by: Heather S.
    Date published: 2018-08-26


    Is there a global warranty for this phone ? I'm planning on taking it back to Brazil.Thanks
    Asked by: Henrique R.
    Included with the phone is a 1-year USA warranty.
    Answered by: Geoffrey N.
    Date published: 2018-08-26


    does it work in india
    Asked by: Jayson P.
    Yes, this phone will work in India.
    Answered by: Heather S.
    Date published: 2018-08-26


    hi, is it world wide warranty?
    Asked by: gregory b.
    1 year North America Warranty only
    Answered by: Yudi C.
    Date published: 2018-08-26


    Brand new?
    Asked by: Anonymous
    All items in our inventory would be new, unless clearly stated otherwise on the item's page. And for the most part, no used or refurbished items will come up in a search unless you are specifically looking in our Used Department.
    Answered by: Heather S.
    Date published: 2018-08-26


    Is this phone has U.S. warranty?
    Asked by: Rejaul K.
    Yes. This phone has a Limited 1-Year US Warranty from ASUS.
    Answered by: Steve M.
    Date published: 2018-08-26


    Would this phone work in Europe ?
    Asked by: Anonymous
    I have used this phone in UK, France and the USA so far.
    Answered by: RAJ M.
    Date published: 2018-08-26
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