Asus Zenfone Zoom ZX551ML

Full Phone Specifications

INR 37,999 / USD 559



The Asus Zenfone Zoom ZX551ML is smartphone targeted for the photography enthusiasts. The phone features a kickass camera setup that is capable of doing a lot more than the regulars of the segment. This particular Zoom model is also said to be the world’s thinnest 3x optical zoom smartphone. All of this fancy optic hardware doesn’t come cheap and hence the phone is available with a premium pricetag.

Phone Display Phone Processor Phone Ram Phone Memory Phone Camera Phone Battery Phone Color
Price Display Processor Ram Storage Camera Battery Colours



5.5 Inch IPS LCD Display (401 ppi) with Corning Gorilla Glass v4, Scratch-resistant glass Quad Core 2.5 GHz Intel Atom Z3590 4GB 128GB internal expandable upto 256GB via Dedicated MicroSD Rear Camera: 13MP f/4.8
Front Camera: 5MP f/2.0
Non-Removable 3000 mAh Pure Black, Ceramic White

Design and Construction

Dimensions (Inches) 6.26 x 3.10 x 0.47
Weight 185 g
Construction materials Metal
Special protection None
Colour Options Pure Black, Ceramic White


Screen Size 5.5 Inches
Screen to body ratio (%) 66.45%
Screen Type IPS LCD
Screen Resolution FullHD
Pixel Density 401 ppi
Screen Protection Corning Gorilla Glass v4, Scratch-resistant glass


System on Chip Intel Atom Z3590
CPU Quad-core 2.5 GHz, 64 Bit
GPU PowerVR G6430
Internal memory 128 GB
Usable memory MB
Expandable Memory Yes
Expandable Memory Upto 256 GB
Expandable Memory Slot Dedicated MicroSD
No. of SIMS 1
Sim 1 Type Micro SIM

Primary Camera

Megapixels 13 MP
No of sensors 1
Aperture size 4.8
Focal length 28
Image stabilization Optical
Autofocus type Laser Autofocus
Flash details Dual LED
Video Resolution 1080 x 1920
Video FPS 30

Front Camera

Megapixels 5 MP
No of sensors 1
Aperture size 2.0


OS Name Android
Os version Android v5.0 Lollipop


Capacity 3000 mAh
Type Non-Removable
Replaceable No


Bluetooth 4.0
Wi-Fi 802.11, a/ac/b/g/n


Music formats MP3, WAV, eAAC+
Video formats MP4, H.264


GSM 1800 / 1900 / 850 / 900 MH
UMTS 1900 / 2100 / 850 / 900 MHz
LTE (FDD) 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 850(band 5) / 1800(band 9) / 850(band 18) / 850(band 19)
LTE (TDD) 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
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Asus Zenfone Zoom ZX551ML Design

As mentioned earlier this phone is said to be the world’s thinnest 3x optical zoom smartphone with an ultra-thin 5mm edge. The phone gets a metallic unibody crafted out of Aluminium with a premium leather finish at the rear. The maker states that the phone has undergone 201 intricate processes.  In order to fuse the antenna bands into the ZenFone Zoom’s aluminium frame, the folks at Asus have applied a nano-molding technology (NMT). And to get the smooth finish the metal bezel has been put through 0.125mm hyperfine sanding process. Then the entire surface is anodized to prevent oxidization.

The Asus Zenfone Zoom ZX551ML is available in two colours – Black and White.

Asus Zenfone Zoom ZX551ML Hardware

This camera centric phone gets a 5.5inch Full HD display with 1920×1080 resolution and 403 PPI pixel density. This display unit is protected by a scratch resistant Corning Gorilla Glass 4 and an anti-fingerprint coating. It supports GloveTouch input and Asus’s TrueVivid Full Screen Lamination technology.

Powering the Zenfone Zoom ZX551ML is the Intel Atom Quad Core Z3590 (up to 2 core running at 2.5GHz) SoC. This unit comes with PowerVR G6430 GPU and 4GB RAM, The internal storage offered on this device is of 128GB and can be expanded upto 128 GB more via MicroSD cards.

Coming to the USP of this camera-centric phone, the front is fitted with a 5 MP PixelMaster camera with Wide View and f/2.0 Aperture. It gets Low Light mode, Real Time Beautification, Photo Effects, and many more features. The main camera is a 13 MP Pixel Master unit that uses laser auto-focus and f/4.8 Aperture. Assisting this camera is a dual-color Real Tone flash and 4 Stop Optical Image Stabilization (OIS). Other features of the camera include Low Light mode with ASUS PIxelMaseter Technology for up to 400% brighter photos and videos, Manual Mode for DSLR-like camera detail settings,

Other features of the camera include Low Light mode with ASUS PIxelMaseter Technology for up to 400% brighter photos and videos, Manual Mode for DSLR-like camera detail settings, Super-resolution mode for up to 52 X resolution photos, and 3X optical zoom / 12X total zoom.

Asus has fitted the Zenfone Zoom with a non-removable 3,000 mAh battery.

Asus Zenfone Zoom ZX551ML Software

The Asus Zenfone Zoom ZX551ML gets Android v5.0 Lollipop out of the box and features the company’s own ZenUI 2.0 on top. The developers at Asus claim that they have made over 1000+ software enhancements on this UI.