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  • MX68091 Zenfone 4 Pro, 64GB, Black
  • MX68091 Zenfone 4 Pro, 64GB, Black
  • MX68091 Zenfone 4 Pro, 64GB, Black
  • MX68091 Zenfone 4 Pro, 64GB, Black

Zenfone 4 Pro, 64GB, Black

Final Sale!

This ASUS Zenfone 4 Pro SmartPhone is Sold as a Final Sale.

There is a 30 Day DOA / RMA for defective ASUS Zenfone 4 Pro SmartPhones.

This ASUS SmartPhone is unlocked from the factory.

Product Info



10x Zoom, 8x Light Sensitivity, 6GB RAM, 64GB Storage

featureThis Flagship ASUS ZenFone 4 Pro SmartPhone is powered by the incredible 10nm Qualcomm® Snapdragon™ 835 Octa-Core Processor with matching Adreno 540 3D Graphics. It is backed by a large 6GB RAM capacity with 64GB of internal storage so you can use it without limits.

The ZenFone 4 Pro delivers a smooth and responsive 3 Camera experience, incredible Audio and the best all round performance with today's apps and games along with long battery life.

ZenFone 4 Pro is the ultimate expression of ASUS smartphone design, crafted to provide luxury in every detail and featuring dual cameras to deliver an unparalleled mobile photography experience.

ZenFone 4 Pro has a standard camera with the Sony flagship IMX362 image sensor, an F1.7 aperture lens and a 10x total zoom capability, plus a front-facing selfie camera with fast phase-detection auto-focus, enabling you to capture gorgeous photos that rival professional cameras.

ZenFone 4 Pro is the world's first smartphone to incorporate three high-end Sony image sensors, and the ASUS SuperPixel™ Engine ensures up to 8x brighter photos in low light.

Efficiently Powerful & Effortlessly Fast

ZenFone 4 Pro is built upon the latest Qualcomm® Snapdragon™ 835 Mobile Platform to deliver powerful performance and a responsive camera experience, while the Qualcomm Adreno™ 540 3D graphics processor provides the best performance for high-end mobile gaming.

This ZenFone 4 Pro supports blazingly fast Cat 12 LTE Advanced networking with 3-channel carrier aggregation for download speeds of up to 600Mbps. It also supports dual-band 802.11ac Wi-Fi in a 2x2 MIMO configuration for ultrafast and reliable wireless connectivity, and its portable Wi-Fi hotspot lets you share connectivity with other mobile devices.

Built-in NFC enables convenient mobile payments with Android Pay, and a front-mounted Live fingerprint reader offers improved security and fast phone unlocking in just 0.3 seconds.

Mobile Gaming Made Easy


ZenFone 4 Pro is powered by the flagship 64-bit Qualcomm® Snapdragon™ 835 octa-core processor that offers tremendous performance with eight CPU cores, up to a 2.45GHz clock speed with 6GB RAM. Second-generation, the 10nm FinFET die size delivers 20 percent improved performance, while reducing power consumption by 25 percent compared to the previous-generation Snapdragon 820 processor. Together with desktop-grade Adreno™ graphics, ZenFone 4 Pro handles even the most demanding apps and games with ease.



  • Qualcomm® Snapdragon™ 835 Octa-Core w/ Adreno™ 540 3D Graphics
  • 3,600 mAh battery supports all day use without charging for most users
  • 5.5" Full HD (1,920 x 1,080) display w/ 500 nits brightness for use in sunlight
  • Triple Digital Camera Setup:
    • Rear 12MP Sensor w/ Standard Lens: f/1.8, 25mm* w/ 83° FOV
    • Rear 16MP Sensor w/ 2x Optical Zoom: 50mm* w/ 60° FOV
    • Front 8MP Sensor, f/1.9, 22mm* lens w/ 87.4° FOV
  • Fingerprint Sensor supports up to 5 Fingerprints
  • Dual Slot Unlocked Dual SIM Cards (standby nano SIMs)
    • Slot 1: 2G/3G/4G Nano SIM card
    • Slot 2: 2G/3G/4G Nano SIM card or a microSD card up to 2TB

*(35mm compatible)

See A Bigger and Brighter World

ZenFone 4 Pro features dual cameras to take your mobile photography to new heights. It is equipped with the industry-leading Sony IMX362 image sensor to capture up to 8x* brighter and clearer photos in low light. When you need to get closer, switch instantly to the 16MP camera with a 2x optical zoom and 10x total zoom to shoot beautifully detailed telephoto pictures.

Both camera lenses are covered with extremely durable sapphire glass to protect against scratches. Qualcomm Spectra™ image signal processing improves your photography experience even further, providing smoother zooming, faster auto-focus, and photos with gorgeous, true-to-life colors.
* Compared to typical smartphone camera with 16MP resolution, F1.7 aperture and 1.12µm pixel size.

8x* Brighter and Clearer Photos in Low Light


To capture real-world authenticity, ZenFone 4 Pro packs a main camera with a wide F1.7 aperture, the latest Sony® IMX362 image sensor with a larger 1.4µm pixel size, and a six-element lens that allows more light to reach the sensor.

Together with ASUS SuperPixel™ Engine that effectively increases captured light by up to 8x*, and optical image stabilization (OIS) that enables shooting photos with slower shutter speeds than normally possible, ZenFone 4 Pro captures sharper, brighter and clearer photos at night and in low-light environments.
* Compared to typical smartphone camera with 16MP resolution, F1.7 aperture and 1.12µm pixel size.

Capture Reality, Fast and Steady

The camera on ZenFone 4 Pro lets you capture the world as you see it by TriTech+™ technology. With ultrafast, dual pixel phase-detection, subject-tracking, and laser auto-focus, ZenFone 4 Pro accurately focuses in just 0.03 seconds and keeps moving subjects in focus to ensure clear and detailed photos. Together with both optical and electronic image stabilization for blur-free photos and videos, an RGB color-correction sensor for true-to-life colors, and true 4K UHD video recording, the camera on ZenFone 4 Pro goes above and beyond other smartphones.

Shoot Like a Pro, Capture the Fun

ZenFone 4 Pro's camera features optional manual controls similar to those found on DSLRs, giving you pro-level creative control over your photography.

Pro mode provides complete camera control with one-touch adjustments to shutter speed, white balance, exposure and ISO settings, as well as the option to shoot in RAW format, allowing you to capture stunning images that truly express your photographic vision.

In addition to its advanced, manual controls, ZenFone 4 Pro's camera has an assortment of fun, creative modes to enhance your photography experience and let you easily achieve professional-looking results.

A Camera that Brings you 2x to 10x Closer

ZenFone 4 Pro's 2x optical-zoom 16MP camera with a Sony IMX351 image sensor and ultrafast, phase detection auto-focus adds an entirely new viewpoint to your mobile photography. It's 50mm focal length brings distant subjects closer, putting them in sharp focus while softening background details.

Combined with the ability to switch instantly between main camera 25mm focal length and all-new Portrait mode that uses both lenses simultaneously to make your subjects stand out, ZenFone 4 Pro's camera lets you capture gorgeous portraits and close-ups with a sense of depth for professional-looking photos that rival those from DSLR cameras.

Beautiful Selfies, Day And Night


ZenFone 4 Pro has the world's most advanced dual smartphone cameras and it's also a selfie superstar. The front-facing camera features fast, phase-detection auto-focus, the Sony IMX319 image sensor with F1.9 aperture, 1.4µm pixel size, and ASUS SuperPixel™ Engine that boosts 2x* light sensitivity while reducing image noise, letting you capture beautifully clear and vivid selfies, day or night, indoors or out.

Together with SelfieMaster technology that offers beautification effects, Selfie Panorama, and more, you'll capture more glamorous selfies than ever before and have more fun shooting group selfies with your friends. When shooting selfie videos, electronic image stabilization (EIS) eliminates annoying shakes for silky smooth results.
* Compared to typical smartphone camera with 16MP resolution, F2.0 aperture and 1µm pixel size.

Ultrafast LTE Network Connectivity

ZenFone 4 Pro delivers ultrafast connectivity with Cat 12 LTE Advanced cellular networking and dual-band 802.11ac Wi-Fi in a 2x2 MIMO configuration for download speeds of up to 866Mbps. You can also turn ZenFone 4 Pro into a portable Wi-Fi hotspot and share connectivity with other mobile devices.

Charge Faster To Work and Play Longer

When creating ZenFone 4 Pro, ASUS engineers combined the fantastic energy-efficiency of the Qualcomm® Snapdragon™ 835 processor with a high-capacity 3600mAh lithium polymer battery, so you can watch videos for up to 21 hours!

When it's time to recharge, ASUS BoostMaster technology provides 18W (9Vdc x 2A) of power for incredibly fast charging. With ZenFone 4 Pro's supplied adapter, just a five-minute charge provides two hours of talk time, and built-in safeguards protect against overcharging.

Timeless Zen Design & Simplicity

ZenFone 4 Pro evolves the prestigious ZenFone design lineage with numerous refinements that give it a singular beauty and provide an unparalleled user experience. Crafted with a solid aluminum unibody using advanced Nano Molding Technology (NMT), ZenFone 4 Pro is thin and light, yet incredibly strong.

An expansive 5.5-inch display is surrounded by an ultra-narrow bezel, providing a cinematic view and a slimmer width for easy one-handed operation. ZenFone 4 Pro's dual camera system is integrated completely within the phone chassis for a perfectly flat rear surface with no protrusions.

Both the front and rear of the ZenFone 4 Pro are encased in 2.5D curved Corning® Gorilla® Glass that provides a more comfortable grip and a durable, scratch-resistant finish. A fine, diamond-cut metal edge provides a luxurious accent. ZenFone 4 Pro is available in two luxurious colors: Moonlight White and Pure Black.

Sensational AMOLED Display With Auto Color Tuning


With a bright 500-nit AMOLED display, Full HD (1,920 x 1,080) resolution, and a color gamut that's greater than 100 percent of NTSC color space, ZenFone 4 Pro makes photos, videos, and all your other content look as vibrant as real life. An ambient light sensor with ASUS Splendid technology adjusts the color temperature of the display based on environmental lighting, resulting in a natural and comfortable viewing experience.

Unrivalled Smartphone Audio

ZenFone 4 Pro has supreme audio performance for entertainment and phone calls. It is equipped with dual speakers driven by a powerful Smart AMP that delivers expansive, stereo sound with minimal distortion, even at high volumes.

The two speakers project sound in different directions to create immersive listening experiences for all of your multimedia content. Hi-Res Audio certification enables 24-bit/192kHz; 4x CD quality audio playback.

The all-new AudioWizard app has custom Listening Profile mode, which automatically adapts the sound profile to your preference, providing the best audio experience for you, and DTS Headphone:X™ provides theater-quality 7.1-channel virtual surround sound over headphones.

Simpler, Faster, Smarter

Simpler, faster and even smarter than ever, ASUS ZenUI 4.0 features a new visual design and keeps only the essential apps. It works faster thanks to quicker response across the board too. Smart new, automated ZenUI features make life easier including: auto face tagging in Gallery, Safeguard that automates communications in emergencies, Page Marker which helps you bookmark web pages and more.

Additional Information

Visit the Manufacturer Web Page for Full Details

Dimensions & Weight



Designed to work with Cellular Network Providers using the following networks:

  • 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

Note: Please check compatibility with local carriers before purchasing this Phone as there are no returns and no exchanges.


Make and Model ASUS ZenFone 4 Pro
Part Number ZS551KL-S835-6G64G-B
Color Pure Black
OS Android™ 7, aka Nougat w/ ASUS ZenUI 4.0
Processors CPU: Qualcomm® SnapDragon™ 835 Octa Core, 10nm, 64bit
(4x 2.45GHz + 4x 1.9GHz Kryo Cores)

GPU: Qualcomm® Adreno™ 540 Graphics Processor

Display 5.5in (140mm) Full HD 1,920 x 1,080 AMOLED Display w/ 2.5D Corning® Gorilla® Glass
Smudge-resistant Oleophobic (anti-fingerprint) coating
10 Point LCD Capacitive Multitouch Screen
Memory 6GB LP DDR4 RAM
Storage 64GB UFS v2.1 Storage (Universal Flash Storage)
1x micro SD Card Slot, for 1x optional microSDXC Card, up to 2TB
SIM Card Slots Dual SIM Slots:
Slot 1: 2G/3G/4G Nano SIM card
Slot 2: 2G/3G/4G Nano SIM card or microSD card, up to 2TB
WiFi 802.11 a/b/g/n/ac (up to 866 Mbps) + WiFi Direct
Bluetooth Bluetooth v5.0
NFC NFC Supported
Cellular Networks North America:
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

Note: Please check compatibility with local carriers before purchasing this Phone as there are no returns and no exchanges.

Data Rates LTE Cat12: UL 150 Mbps / DL 600 Mbps (US/CA/BR/CO/JP/IN version)
LTE 3CA 4x4 MIMO support varies by region
DC-HSPA+: UL 5.76 Mbps / DL 42 Mbps
Audio Dual Speakers: 5-magnet speaker with Ti Smart Amp for up to 40% better performance

Audio Output: Hi-Res audio 192kHz / 24-bit standard, 4x higher than CD Audio

DDTS (Digital Theater System) Headphone:X™ 7.1 virtual surround sound

ASUS Noise Reduction Technology via 3x internal mics

Integrated FM Radio: requires headphones connected to 3.5mm audio jack
Navigation AGPS
Front Camera 8MP, F1.9, 22mm (equivalent in 35mm), 87.4° FOV
Phase detection Auto-Focus
Rear Cameras Standard Lens:
12MP, F1.7, 25mm (equivalent in 35mm), 83° FOV
6p Lens w/ 4-axis, 4 stops optical image stabilization
ASUS exclusive SuperPixel™ Engine
0.03 seconds TriTech+™ AF technology: Dual Pixel PDAF, laser auto-focus, subject-tracking auto-focus
8x light sensitivity low light photos (compared with a typical camera with 16 megapixels, F1.7 & 1.12µm pixel size)

Zoom Lens:
16MP, 50mm (equivalent in 35mm) w/ 2x optical zoom, 10x total zoom

Video Recording Main Rear Camera:
4K UHD (3,840 x 2,160) videos at 30fps
Full HD (1,920 x 1,080) videos at 60 and 30fps
HD (1,280 x 720) videos at 30 fps

Slow Motion videos:
Full HD (1,920 x 1,080) videos at 120fps
HD (1,280 x 720) videos at 240 fps

3-axis electronic image stabilization for shake-free videos
Can take still photos while recording video
Sensors Accelerator
Ambient Light Sensor
Front Fingerprint Sensor
Hall Sensor
Proximity Sensor
RGB Sensor
I/O Ports 1x micro USB port
1x 3.5mm Combo Headphone / Mic Audio jack
Power AC Power Adapter Included
Output: 9Vdc @ 2A, 18W
Battery Charging 5 Minute charge for 2 hours of talk time
32 Minute charge for 50% capacity
Battery 3,600mAh Lithium Ion Polymer Battery
Battery Life 3G Talk Time: Up to 27.5 hours

720p Video Playback: Up to 21 hours
Wi-Fi Web Browsing: Up to 18 hours

Dimensions 157 x 76 x 7.6mm
Weight 175g

Package Contents

  • ASUS Zenfone 4 Pro with Android™ 7 & ASUS ZenUI 4.0
  • 1x ASUS ZenEar Pro Earphone with Microphone
  • 1x USB Type-C Cable
  • 1x Ejector pin (SIM tray needle)
  • 1x AC Power Adapter, 18W
  • User Guide
  • Warranty Card