ASUS ZenFone Zoom ZX551ML 64GB Smartphone (Unlocked, Black)

ASUS ZenFone Zoom ZX551ML 64GB Smartphone (Unlocked, Black)

ASUS ZenFone Zoom ZX551ML 64GB Smartphone (Unlocked, Black)

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Product Highlights

  • GSM / 4G LTE Capable
  • North American Variant
  • 2.3 GHz Intel Z3580 Quad-Core CPU
  • Rear 13MP PixelMaster Camera + 5MP Front
  • 3x Optical Zoom Lens with OIS
  • Manual Camera Controls + Laser Autofocus
  • 64GB Storage Capacity + 4GB of RAM
  • 5.5" 1920 x 1080 TFT LCD Display
  • Corning Gorilla Glass 4
  • 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 ZX551ML Overview

  • 1Description

Get the power of a real optical zoom and performance of a flagship smartphone in a thin design with the black ZenFone Zoom ZX551ML from ASUS. Utilizing an innovative periscopic design, this smartphone offers a 3x optical zoom without sacrificing the signature sleek design of an ASUS ZenFone. The ZenFone Zoom features a black leather back along with 5mm thick aluminum edges. In addition to its 3x optical zoom capability, the Zoom's dual cameras feature a 13MP PixelMaster rear camera and 5MP PixelMaster front camera. Built-in laser autofocus means near-instant picture focus, especially in low light conditions. 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 Zoom houses a 5.5" LCD 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. The Zoom is also well-equipped for wireless communication. It features Bluetooth 4.0 and NFC technology for pairing with other Bluetooth- and NFC-enabled devices, and 802.11 a/b/g/n/ac Wi-Fi for high-speed Internet connectivity. GPS with GLONASS is also on-board for using Google Location and Maps services. The Zoom's non-removable 3000mAh battery can deliver hours of enjoyment on a full charge and, thanks to built-in BoostMaster technology, can be charged from 0 to 60% in just under 40 minutes.

4-11mm f/2.7-4.8 Optical Zoom Lens
Unlike most smartphones that only offer digital zoom, the ZenFone Zoom comes equipped with a 4-11mm f/2.7-4.8 optical zoom lens with optical image stabilization designed by Hoya. The 4-11mm lens has a 35mm equivalent focal length of 28-84mm, which enables you to shorten the visible distance from where you stand to the object you wish to see without degrading the image quality. In order to keep the ZenFone 2's form factor thin, the lens features a unique periscopic design with aspheric, molded-glass lens elements.
Along with the optical zoom, the ZenFone Zoom's rear camera also features optical image stabilization, which counteracts image blur caused by shaky hands and therefore allows the camera to shoot at lower shutter speeds, meaning better low light photography without using a flash. But if you need a flash the ZenFone Zoom still has you covered with a dual-led Real Tone flash.
Manual Camera Control
The ZenFone Zoom features an advanced camera mode that gives you full control over the camera. You can change the shutter speed, ISO, white balance, exposure value, and more at the touch of a button. Plus, the ZenFone Zoom has a dedicated shutter button on the phone, and lets you zoom in and out with the volume keys while in the camera app. This helps you use the ZenFone Zoom like a real camera.
North American Variant / US Compatible LTE
The ZX551ML is a US variant of the ZenFone Zoom. The ZX551ML'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, though 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.
BoostMaster Technology
ASUS BoostMaster Technology is designed to charge you ZenFone Zoom at faster than normal speeds—up to 60% in 39 minutes. Coupled with ZenFone Zoom's large 3000mAh battery, you'll get more power, faster.
  • Wi-Fi: Dual-band 802.11a/b/g/n/ac
  • Wi-Fi Direct
  • Near Field Communication (NFC) support
  • Bluetooth: Version 4.0, A2DP, EDR
  • ASUS ZX551ML Specs

    Operating System Android 5.0 Lollipop
    Memory 4 GB
    Chipset Intel Atom Z3580
    CPU 2.3 GHz Intel Quad-Core
    GPU PowerVR G6430
    Storage 64 GB
    Size 5.5"
    Native Resolution 1920 x 1080
    Pixel Density 403 ppi
    Display Technology IPS-Type LCD
    Screen Coating Gorilla Glass 4
    Input/Output Connectors
    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
    GSM 2G GSM, GPRS, EDGE: 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 Yes, Wi-Fi 5 (802.11ac)
    Bluetooth Bluetooth 4.0 + EDR 
    NFC Yes
    Infrared Yes
    GPS Yes
    Sensors Ambient Light Sensor, Gyroscope, Proximity
    Keyboard Virtual
    Battery Internal Lithium-Ion (3000.0 mAh)
    Dimensions (W x H x D) 3.1 x 6.3 x 0.5" / 78.8 x 158.9 x 12.0 mm
    Weight 0.41 lb / 185 g
    Packaging Infocrffzcuaasdrcvfqesrtttvrsfaqdstxtw
    Package Weight 1.15 lb
    Box Dimensions (LxWxH) 6.7 x 5.4 x 2.2"

    ASUS ZX551ML Reviews

    ZenFone Zoom ZX551ML 64GB Smartphone (Unlocked, Black) is rated 3.8 out of 5 by 26.
    Rated 5 out of 5 by from Best Phone Camera on the market Alot of reviews bring up that this phone's camera doesn't have f1.4/1.8 but fail to realize OPTICAL ZOOM lenses always have f2.8 as the lowest aperture due to having 10 elements, due to shear physics. I don't miss having f1.4 on this phone at all. The detail in optical zoom pics compared to digital zoom (all other phones) is a slam dunk win. Another plus of having an optical zoom is you get the benefits of PERSPECTIVE (the background looks bigger). Phone wise, it is fast and responsive just as the Zenfone 2 with a microSD, one can easily add 128GB for a total of 192GB. Build quality is outstanding. Not bulky at all. Price can't be beat.
    Date published: 2016-02-03
    Rated 4 out of 5 by from ZenFone Zoom I've only owned this for a week, but for now: I bought this for the camera and so far I am not disappointed. As a phone. To me its a phone, it works like a phone should, but my review there might not be so helpful because I don't use my phone as a computer or a messenger. Something does cause some drastic battery drain even while its not being used and I am struggling to get that under control but I'm sure that I will be able to. One handed operation is out due to the size but that's probably just a matter of getting used to holding the little beastie. The main reason I bought this phone was because I like taking pictures but not lugging a camera everywhere. It does exactly what I want it to do; it takes amazing pictures and I can make a call on it.
    Date published: 2016-05-16
    Rated 3 out of 5 by from Review from Previous Lumia 1020 Owner I bought this product because I was frustrated with windows 10 phone and because the camera seemed promising. So far I'm very pleased with the overall feel of the build and the software. Windows 10 just falls short in a lot of ways compared to Android from customization, apps, and other basic functions like not being able to message more than 25 people at a time. The feel of the phones seems more business like with the leather removable back cover. The camera however doesn't compare to the Lumia 1020's camera. Normally I go for phones that has the best camera out there so I'd give this a try. LED flash just doesn't have that freezing quality that Xenon flash has. Low light pictures are grainy and cropping into the pictures aren't as detailed as the Lumia 1020. The zoom seems fine, it uses the volume keys to zoom in, and it uses a digital zoom after 3x to 12x.Can't complain too much though, the price is pretty awesome for what you get out of this phone. I've seen reviews elsewhere where they're complaining the phone cost $$+. Even though I'm somewhat happy with this phone, I'd only recommend this phone to people who are looking for a cheaper alternative for higher end phones or if you want a good mid-ranged phone that performs well.
    Date published: 2016-02-09
    Rated 5 out of 5 by from Best Phone I Have Ever Had Is a beautiful and elegant looking phone, feels great in hand, great quality materials. It's really fast because of the Intel processor and 4GB RAM, the screen is full HD, the camera is awesome, I took really nice pictures, the zoom works really well, I'm really happy with this phone, you can't ask more for the price, good looking, great performance, awesome camera, affordable price.
    Date published: 2016-02-29
    Rated 5 out of 5 by from Great phone, not just for the money... bought this product with photography in mind as well as comparing it to my daily Note 5. it actually didn't let down, at all. i enjoyed using this phone very much. the camera actually surprised me with how accurate the shots came out and the hardware zoom is fantastic to have. the physical camera buttons are awesome and the different camera modes are fun and helpful, not to mention the manual mode is just great. the processor does a great job, never felt any hiccups at all really. screen size was great and screen itself wasn't bad whatsoever. phone is a bit chunkier than most but has great grip. the metal bumper is nice and i actually the faux leather backplate. speaker on the back is no bueno. all in all this phone is worth it.
    Date published: 2016-02-26
    Rated 5 out of 5 by from Awesome phone, outstanding camera I read a lot of reviews online before making my purchase, I upgraded from a Nexus 5 which was stolen in a trip to Mexico. To be honest is even more than I expected, performance wise is impressive, the build quality makes it feel very premium, the back is made of real leather, the picture quality compared to my gfs iPhone 6s is waaay better! I love it so far! To date is the best phone I've seen! Macro is awesome, this phone is very capable of doing a lot with the camera
    Date published: 2016-02-14
    Rated 4 out of 5 by from Basically An Upgraded Zenfone 2 and a Good One! I bought the Zenfone Zoom as a replacement for my Zenfone 2. Which I was very happy with until the digitizer gave out on me after just over 3 months of use. After becoming tired of dealing with Asus's customer support, I decided to upgrade to the Zoom. I have been using it daily for almost a week and have so far been very satisfied with it. The dedicated photo and video buttons are much more useful than I had first anticipated, it feels very close to a DSLR experience and natural to use. The phone itself feels solid and comfortable in the hand due to the aluminum frame and leather backing. I like the placement of the power button on the side, I do however miss the volume buttons being on the back of the phone like the Zenfone 2. 3x Zoom doesn't sound like a lot. The truth is that, it isn't but it is adequate for almost any situation indoors. Being a student who spends a majority of their time indoors, this is perfect for me. It gives me more than enough to take a clear picture of the whiteboard. 3x zoom doesn't go far outdoors, but as long as you're not taking pictures of moving targets it's adequate. The only reason I cannot give this phone 5 stars is because mine has an issue where the camera will occasionally not launch. It's about once every 10 launches. This is fixed by a quick restart of the phone. I am assuming this is just a bug that will to be fixed in a future firmware update. Overall I am very satisfied with this phone, even despite the camera issue.
    Date published: 2016-02-10
    Rated 5 out of 5 by from Amazing pictures This phone runs much like the zenfone 2 but as far as cameras it is by far the best. It has the designated shutter and video recording buttons and the volume rocker acts as a zoom in and out button. It takes great macro shots and just the detail of the shots makes the phone stand out. It performs like a flagship phone. And the battery life is just amazing. I don't ever worry about it.
    Date published: 2016-03-06
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