Specs summary

Screen
5.5"

The Asus ZenFone 4 Pro's screen is 5.5 inches with 1080 x 1920 pixels resolution.

Processor
2.45GHz

There is a Qualcomm MSM8998 Snapdragon 835 Octa core 2.45 GHz processor (CPU).

OS

The phone runs on the Android 7.1 Nougat operating system (OS).

Camera
12+ MP

You can take photos or capture video with the phone's onboard 12+ megapixel camera.

There is also a secondary front facing camera with 8+ megapixels resolution.

Storage
64/128 GB

Internal memory is 64/128 GB. An external, MicroSD, MicroSDHC, microSDXC (up to 2000 GB) expansion slot is available for increased storage capacity.

Battery
3600mAh

The phone is powered by a Lithium-Ion (Li-Ion), 3600 mAh battery.



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Full Specs

Overview
Release date December 31, 2017
Regions available USA, Canada
Networks
GSM:
850/900/1800/1900 MHz
UMTS:
850/900/1900/2100 MHz
LTE:
1700/1900/700/2100 /800/850/900/1800/2600/2300 MHz
Data:
GPRS, EDGE, HSUPA, HSPA+, LTE
SIM Card Nano-SIM
Dual SIM Yes
Operating System Android 7.1 Nougat

Compare Android Smartphones

Processor Qualcomm MSM8998 Snapdragon 835 Octa core 2.45 GHz
Internal Flash Memory
64 GB or 128 GB
RAM 6 GB
ROM No
GPS A-GPS
Digital compass Yes
FlightMode Yes
Hearing Aid Compatible Unknown
TTY/TDD Unknown
Noise Cancellation Yes
SAR Unknown
Languages English
Manufacturer Warranty 1 Year
Accessories Included Data Cable, Headphones, Manual, USB Power Adapter
Power & Battery
Type Lithium-Ion (Li-Ion), 3600 mAh
Removable Battery No
Wireless Charging No
Fast Charging Yes
Video Playback Time Unknown
Wi-Fi Surfing Time Unknown
3G Surfing Time Unknown
4G Surfing Time Unknown
Talk Time Unknown
Standby Time Unknown
Physical Characteristics
Design Type Bar
Multi-Use Smart Phone / PDA Yes
Material Aluminium
Colors Moonlight White, Pure Black
Dimensions [H x W x D] 15.7 x 7.5 x 0.8 cm
(6.2 x 3 x 0.3 in)
Weight 175 grams
(6.2 ounces)
Water Resistant / Waterproof No
Rugged Design No
IP Rating No
Antenna Type Internal
Changeable Faceplates No
Display / Screen
Type Color
Technology AMOLED
Colors 16.7 million
Resolution 1080 x 1920 pixels
Pixel Density 401 pixels
Size 5.5 inches
3D No
Secondary Display No
Sensors Ambient Light, Proximity, Motion / Accelerometer, Gyroscope
Graphics Yes
Themes Yes
Backlit Illumination Yes
Zoom / Magnification Yes
Screen Orientation Lock Yes
Multi Touch Yes
Fingerprint-Resistant Coating No
Additional Display Features Capacitive touch screen
Input / Navigation
Sleep / Wake Key Yes
Home Key Yes
Mute Key No
Input Type Touchscreen
Navigation Type Touchscreen
Predictive Text Entry Yes
Physical Keyboard No
Voicemail Key No
Any Key Answer No
Voice Commands Yes
Keypad / Screen Lock Yes
External Volume Control Yes
External Media Playback Controls No
Fingerprint Sensor Yes
Call Management
Wi-Fi Calling Unknown
Voice over LTE (VoLTE) Yes
Contact List Capacity Depends on system memory
Multiple Numbers Per Contact Email address, Other fields
Contact Groups Yes
Auto Answer Unknown
Voice Activated Dialing Yes
Photo Caller ID Yes
Web / Email / Messaging
Web Browsing Type HTML, HTML 5
Browser Google Chrome
Javascript Yes
Flash No
Email Yes
Email Protocols POP3, IMAP, SMTP, Microsoft Exchange
Additional Email Features Gmail
Messaging Services SMS, MMS, IM
Push-to-talk (PTT) No
Connectivity
USB USB Type-C
USB OTG Support Yes
Infrared No
Bluetooth 5.0
Bluetooth Profiles A2DP, AVRCP, OPP/FTP, HFP, HSP
WiFi 802.11 a/b/g/n
WiFi Encryption No
Mobile Hotspot Yes
WiMAX No
Expansion Slots Yes
Expansion Slots Info MicroSD, MicroSDHC, microSDXC (up to 2000 GB)
PC Synchronization Yes
TV-out No
DLNA Support No
NFC Yes
UMA Support No
Data Tethering Compatibility Yes
Java Applications No
Brew Applications No
ECML / Digital Wallet No
PictBridge No
Camera
Main Camera  
Aperture ƒ/1.7
Resolution 12+ megapixels
Dual Lens Yes
Zoom 2x optical
Flash Yes (LED)
Additional Rear Camera Info Auto focus, Effects, Face detection, Geotagging, Panorama, Self-timer, Dual camera feature (16 MP 2nd camera), Phase detection, HDR, Slow motion recording
Video Recording Formats MPEG-4
Video Recording Parameters Ultra HD (3840 x 2160 pixels), 30 fps
Front Camera  
Resolution 8+ megapixels
Zoom Yes
Additional Front Camera Info F1.9 aperture, Selfie Panorama, HDR
Video Recording Parameters
Audio / Video
Audio Playback Yes
Audio Formats MIDI, MP3, MP4, eAAC+, AAC+, AAC, WMA, WAV, M4A
Radio Yes (FM)
Video Playback Yes
Video Playback Formats 3GP / 3GPP, H.264 / AVC, MPEG-4, WMV
Mobile TV No
Streaming Video Yes
External Speakers Yes
Headset Jack 3.5mm
Custom Ringtones Yes
Vibration Alert Yes
Downloadable Ringtones Yes
Ringtone Composer No
Ringer ID Yes
Haptic Feedback Vibration Yes
Speakerphone Yes
Apps
To-Do / Task List Unknown
Calendar Yes
World Clock Yes
Alarm Yes
Stopwatch Yes
Timer Yes
Calculator Yes
Currency Converter Unknown
Document Viewer Unknown
Weather Yes
Stocks Unknown
Maps Yes
Notepad Unknown
Voice Memos / Recorder Yes
Games Downloadable
Apps Downloadable, Pre-installed (Google Drive)
Included Software / Apps No
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Additional Comments Other Names (AKA): Asus ZS551KL

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