On 17 August 2017, ASUS launched the ASUS ZenFone 4 Pro (ZS551KL) smartphone with Korean superstar Gong Yoo at the Next TV Studio in Taipei. Let’s take a look at the specifications and key features of the ASUS ZenFone 4 Pro, as well as our hands-on preview of the first unit in Taipei!
The ASUS ZenFone 4 Pro (ZS551KL) Smartphone
The new ASUS ZenFone 4 Pro smartphone is targeted at users who are into mobile photography. Hence, it boasts a dual-lens main camera system. Check it out!
Elite Photographic Capability!
Whether it is the rear cameras or the front facing selfie camera, the ZenFone 4 Pro features three high end Sony camera sensrors with superior light sensitivity, focusing speeds and features.
- First rear camera – an industry leading Sony IMX362, 25mm 12 megapixel main camera with the following technologies:
- A wide F1.7 aperture that allows more light into the sensor
- Large 1/2.55” format sensor
- Large 1.4μm pixels which give the sensor superior light sensitivity
- Wide aperture and large pixels work together to achieve 8X brighter photos 1 in low light compared to other smartphone cameras.
- 4-axis OIS that allows up shutter speeds up to 4 stops slower
- Fast Dual Pixel autofocus system that achieves focus in a mere 0.03 seconds
- A SuperPixel Engine image processor that intelligently increases light sensitivity and removes photographic “noise” after the shot.
- Second rear camera – a Sony IMX351, 2X optical zoom (50mm), 16 megapixel camera for ultra-clear photos of distant subjects
- Front camera – a Sony IMX319 camera that is one of the world’s best front facing cameras
- Largest 1.4μm pixels for a front-facing camera which give the sensor superior light sensitivity
- Super-fast Phase Detection Autofocus (PDAF) – a rare feature for a front camera
- Shares the SuperPixel Engine image processor with the main rear camera
Elite Components
The ZenFone 4 Pro also featyres the latest top-of-the-line Qualcomm Snapdragon 835 SoC processor that has been paried with a massive 6GB of RAM.
Certain variants of the ZenFone 4 Pro also support the latest Cat 16 4CA LTE standard for up to a blazing 1000MB per second data transfer speeds on compatible networks.
Elite Audio
Matching the photographic and processing capability of the ZenFone 4 Pro is its audio prowess which includes supremely loud 5-magnet dual speakers, a three-mic system (with one dedicated for noise cancelling), Hi-Res audio support and the industry’s best virtual surround system: DTS Headphone X:7.1.
Elite Design
The window to these features is a bright, 500 nits, Full-HD AMOLED display; and the entire package is wrapped in an exqusitely slim, Corning Gorilla Glass-wrapped unibody with a rounded aluminum alloy edge. The body also houses a unique anti-spoofing IR fingerprint sensor that requires the user’s live fingerprint to rapidly unlock the phone in 0.3 seconds.
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The ASUS ZenFone 4 Pro (ZS551KL) Specifications
| Specifications | ASUS ZenFone 4 Pro |
| Model | ZS551KL |
| Design | Glass-metal unibody with front and rear Gorilla Glass panels featuring 2.5D contoured edges. Rounded sandblasted aluminum alloy edge. Home button with integrated fingerprint sensor. |
| Display | 5.5" Full HD AMOLED display (1920 x 1080) High 500nits brightness for best outdoor readability Capacitive touch panel with 10 points multi-touch (support glove touch) |
| Operating System | Android 7.1 Nougat with ZenUI 4.0 |
| System Platform | Qualcomm Snapdragon 835 |
| Processor | 4 x Qualcomm Kryo 280 cores (2.45 GHz) 4 x Qualcomm Kyro 280 cores (1.8 GHz) |
| Graphics Processor | Qualcomm Adreno 540 |
| Memory | Up to 6 GB RAM |
| Storage | Up to 128 GB internal flash storage One microSD card slot (up to 256 GB) |
| Main Camera | Dual Lens Camera System Main Camera (25 mm) - 12 MP Sony IMX362 sensor - 1.4 μm pixel size - f/1.7 aperture - Supports Dual Pixel PDAF and laser AF - 4-axis OIS (up to 4 stops) Zoom Camera (50 mm - 2X) - 16 MP Sony IMX351 sensor - 1.0 μm pixel size - f/2.6 aperture |
| Front Camera | 8 MP Sony IMX319 sensor - 1.4 μm pixel size - f/1.9 aperture - PDAF |
| Connectivity | 4G (Dual SIM) : CAT 12 3CA - up to 600Mbps download / 100Mbps upload 4G (Single SIM) : CAT 16 4CA – up to 1000Mbps download / 150Mbps upload (Single SIM) WiFi (Dual SIM) : 802.11ac (2.4 GHz + 5 GHz) WiFi (Single SIM) : 802.11ad (2.4 GHz + 5 GHz) Bluetooth 5.0 USB 2.0 Type C - supports OTG |
| SIM Capability | Dual SIM, dual standby SIM1 : nano SIM (2G / 3G / 4G) SIM2 : nano SIM (2G / 3G / 4G) |
| Fingerprint Sensor | 0.3 sec ultrafast unlocking, anti-spoofing IR fingerprint sensor, supports 5 fingers and 360 degree recognition |
| GPS | GPS, AGPS, Glonass, BDS |
| Audio | Dual Smart amp powered speakers Hi-Res audio output support - 192kHz/24-bit standard, 4X CD quality DTS Headphone:X 7.1 virtual surround support 3-mic system with ASUS Noise Reduction Technology |
| Battery | 3,600 mAh lithium-ion battery (non-removable) |
| Available Colours | Pure Black / Moonlight White |
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Other ASUS ZenFone 4 Articles
Here are the links to our other ASUS ZenFone 4 previews and articles :
- The ASUS ZenFone 4 Selfie Pro (ZD552KL) Review
- Gong Yoo Madness @ ASUS “We Love Photo”!
- The ASUS ZenFone 4 Price List & Pre-Order Offers!
- The ASUS ZenFone 4 (ZE554KL) Preview
- The ASUS ZenFone 4 Selfie Pro (ZD552KL) Preview
- The ASUS ZenFone 4 Selfie (ZD553KL) Preview
- The ASUS ZenFone 4 Max Pro (ZC554KL) Preview
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