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Asus ZenFone 4 Pro ZS551KL

Mobile Phone 5.5 AMOLED 1920x1080, Qualcomm Snapdragon 835 Octa Core 2.45GHz Processor, RAM 6GB, MicroSDXC to 2TB, 12 + 16Mpx + 8Mpx Camera, GPS, NFC, 4G / LTE, Fingerprint Reader, Dual SIM , Android 7.0 Nougat
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incl. VAT
excl. VAT £428.25
Phone installation £8.62 Phone installation
In stock > 5 pcs
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Warranty 24 months Code:  AST024b Product Number:  90AZ01G1-M00150
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Asus ZenFone 4 Pro ZS551KL In stock > 5 pcs

Asus ZenFone 4 Pro ZS551KL

Phone features


Přední strana telefonu Asus ZenFone 4 Pro


Zadní strana telefonu Asus ZenFone 4 Pro


Phone Weight: 175g

Úhlopříčka displeje


diagonal screen

Typ operačního systému

Android 7.0

operating system

Výdrž baterie


battery power


Nano SIM

SIM card type



phone dimensions (W×H×D)

Vnitřní paměť


internal memory

Typ fotoaparátu

12 + 8Mpx




the fastest internet

SD karta

micro SD

memory card slot



phone weight

For a more detailed and clear view of your world

The Asus ZenFone 4 Pro's sleek, stylish design conceals not only the peak performance for the smooth running of the most demanding games and applications, but also a stunning AMOLED display, a high quality dual camera with advanced Sony IMX362 image sensor and plenty of advanced technology. You'll appreciate the ultra-fast fingerprint reader and a dual-speaker with the intelligent NXP amplifier which takes care of delivering a perfect stereo sound with minimal distortion. Superior Android OS 7.0 ZenUI 4.0 offers a new sophisticated design with lots of useful applications and features to make your everyday life easier.

Premium display with automatic colour tuning

The front of the phone is dominated by the luxurious 5.5" AMOLED display with an ultra-slim frame that delivers stunning images with superb colour rendition and rich contrast due to the Full HD resolution. The ambient light sensor and ASUS Splendid technology continuously adjusts the colour temperature according to ambient lighting for a natural and comfortable viewing experience of still images or movies. The display is covered with Corning Gorilla Glass 2.5D, which provides perfect protection against scratches and other types of damage.

8x brighter and lighter photos

The Asus ZenFone 4 Pro features an advanced 16Mpx dual zoom camera and is the first smartphone on the market to feature three top Sony image sensors. With the ASUS SuperPixel Engine, you can shoot up to 8 times brighter photos in low light. Both camera lenses are protected by extremely sophisticated sapphire glass to prevent scratches. For brighter and crisper images, the phone is equipped with a 4-axis optical image stabilisation (OIS), which lets you shoot at slower shutter speeds with minimal blur.

Perfectly sharp images

With TriTech+ fast auto-focus technology with dual pixels and laser focusing, you can focus on the subject in just 0.03 seconds. TriTech+ automatically selects the best focusing technology depending on the subject, giving the phone the fastest autofocus in the world. There is no problem with focusing on moving objects, so all your pictures will always be perfectly sharp.

Natural colours, incredible details

We have all experienced this. You have taken a wonderful shot, but in the final colour of the captured image did not correspond to reality. This malfunction of most mobile cameras has been rectified by ASUS. The ZenFone 4 Pro features advanced RGB colour correction technology that detects the type of light and automatically adjusts colours to make the result as natural as possible. Now your photos will be beautifully saturated in colour that matches that of reality.

Dual pixel sensor

The dual pixel image sensor divides each pixel into two phase detection areas that recognise movement of the object by analysing the changes between the light beams. The sensor has more than 12 million pixels performing this task simultaneously, due to which the phase detection system can achieve precise focus even in low light conditions.

Beautiful self-images in every situation

Even the front 8Mpx camera offers fast-phase auto focus detection and the Sony IMX319 image sensor with ASUS SuperPixel technology. This increases the light sensitivity up to two times, reducing noise so you can always capture perfect and pure self-images. In addition, thanks to the SelfieMaster feature, you'll have plenty of effects to beautify your self-image or with skin smoothing in real-time during video calls.

Manual mode for professional photography

In addition to automatic mode, the optional Pro mode is also available with manual camera controls to give you perfect control over your pictures. Easily set shutter speed, white balance, exposure value and ISO. You can save images in RAW format to keep your settings under complete control. In addition to manual features, there are a number of creative modes and effects to help you sharpen your photos and achieve truly professional results.

Top performance for the most demanding applications

The top-notch performance of the ASUS ZenFone 4 Pro and the smooth running of the applications takes place in the Qualcomm Snapdragon 835 eight-core processor with 2.45GHz and 6GB of memory. The second generation of 10nm FinFET transistors provides 20% better performance while reducing power consumption by 25% compared to the previous generation of Snapdragon processors. For a perfect gaming experience, the phone is packed with an Adreno top-of-the-line graphics card to ensure the smooth running of even the most demanding applications and games.

High-speed mobile internet

ASUS ZenFone 4 Pro supports Cat 12 LTE Advanced fast network with 3-channel aggregation for up to 600Mbps download speed. There is support for dual-band Wi-Fi 802.11ac in 2x2 MIMO configuration for ultra-fast and reliable wireless connection. With Wi-Fi hotspot, you'll be able to share connections with other mobile devices.

Faster charging, longer battery life

The power supply is ensured by a 3,600mAh high-capacity Li-Pol battery that allows up to 2 weeks of standby time in the 4G network. With ASUS BoostMaster technology, the phone charges at an incredible speed. With the supplied adaptor, you can enjoy two hours of talk time with just five minutes of charging. Of course, safety features are installed to protect your phone from possible damage during charging.

Display size
5.5" Done!
Display resolution
1920×1080 Done!
Operating system
Android Done!
Operating memory
6 GB Done!
Internal memory
64 GB Done!
Basic parameters
Memory card slot
Yes Done!
Rear camera resolution
12 Mpx Done!
Front camera resolution
8 Mpx Done!
FM Radio, Fingerprint reader Done!
Touch display Done!
156.4 mm Done!
75.6 mm Done!
7.6 mm Done!
175 g Done!
Black Done!
Display size
5.5" Done!
Display resolution
1920 × 1080 Done!
The aspect ratio of the display to the body
70.3 % Done!
Screen fineness
401 PPI Done!
Rear camera resolution
12 Mpx Done!
Front camera resolution
8 Mpx Done!
f/1.7 Done!
Image stabilization
Optical Done!
Hybrid laser focusing, Phase-detection autofocus, Auto focus Done!
Camera functions
Flash function, Artistic filters Done!
Maximum video resolution
3840 × 2160 (Ultra HD) Done!
Performance and stamina
Processor tag
Qualcomm Done!
Number of processor cores
Processor frequency
2.45 GHz (2,450 MHz) Done!
Battery capacity
3,600 mAh Done!
Communications and Ports
Jack (3.5mm), USB-C Done!
Configure cards
Hybrid slot Done!
Data services
Wireless technology
WiFi, Bluetooth, GPS, NFC, GLONASS, A-GPS, Galileo Done!
Digital Compass (magnetic sensor), Motion sensor (accelerometer, G-sensor), Gyroscope, Light sensor, Proximity sensor Done!
LTE frequency
1900MHz Done!
Primary SIM card type
Nano SIM Done!
Secondary SIM Card Type
Nano SIM Done!
Memory and batteries
Memory card slot
Micro SDXC Done!
Maximum memory card capacity
2,048 GB Done!
Battery capacity
3,600 mAh Done!
Replaceable battery
No Done!
Operating system
Operating system
Android Done!
Operating system version
Android 7.0 (Nougat) Done!
More Specifications

ASUS is a symbol of the growth of Taiwan's economy. The firm's beginnings date back to April 2, 1989, when as a small manufacturer of motherboards began his work with a few employees. Today, Asus employs more than 12,500 employees worldwide.

ASUS products can be found in almost every category of the information technology marketplace. ASUS is focused on desktops, laptops, phones, optical drives and components. In the manufacture of motherboards, the company is now the dominant player with a staggering 40% market share.

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Specifications can be changed without notice. Images are for illustrative purposes only. Retail Price (MSRP) means the manufacturer's/supplier's suggested retail price.

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