Asus Zenfone 4 PRO (ZS551KL), 5.5-In FHD / Octa-Core / 16GB / 128GB / 12MP + 16MP Rear + 8MP / Nougat

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. Powered by the latest Qualcomm® Snapdragon™ S835 mobile platform and 6GB RAM, ZenFone 4 Pro delivers a smooth and responsive camera experience, and the best performance with today’s apps and games. Technical Specs:

Finish / Color	Moonlight white, Pure Black
Capacity	Internal storage     128GB MicroSD card        Supports up to 2TB Google Drive     100GB free space (1 year)
Display	5.5-inch AMOLED display Bluelight filter for eye care 10-finger capacitive touch Fingerprint sensor
Processor	CPU: Qualcomm Snapdragon 835 Octa-core processor GPU: Adreno™ 540
Memory	6GB LPDDR4
Main Camera	12 megapixels Sony IMX362 sensor F1.7 aperture 25mm focal length 1.4µm pixel size 83° field of view Electronic image stabilization for shake-free videos LED flash 4-axis, 4 stops optical image stabilization Color correction (RGB) sensor 0.03 seconds fast focus DualPixel PDAF auto-focus Laser focus Continuous focus PixelMaster 4.0 camera modes: Auto mode with low light and HDR Pro features Pro Beauty Super Resolution (48 megapixels) GIF Animation Panorama Slow motion Time Lapse with power saving mode
Zoom Camera	16 megapixels Sony IMX351 sensor 2x optical zoom 50mm focal length
Video Recording	4K UHD at 30 fps video recording Electronic image stabilization for shake-free videos Take still photo while recording video
Front Camera	8 megapixels Sony IMX319 sensor 1.4µm pixel size F1.9 aperture 87.4° field of view PixelMaster 4.0 camera modes: Beauty (default) 140° Selfie Panorama Auto mode with low light and HDR Pro features GIF Animation
Audio	Speaker   Dual speakers Mic   Three internal mics with ASUS Noise Reduction Technology FM Receiver   FM radio
Wireless Technology	WLAN 802.11 a/b/g/n/ac Bluetooth 5.0 Wi-Fi direct NFC
Navigation	GPS, AGPS, GLONASS, BDS
SIM Cards	SIM card slots: Slot 1: 2G/3G/4G Nano SIM card Slot 2: 2G/3G/4G Nano SIM card Dual SIM dual standby Both SIM card slots support 3G WCDMA / 4G LTE network band. But only one SIM card can connect to 3G WCDMA / 4G LTE service at a time. Slot 2: Also supports up to 2TB MicroSD card
Network Standard	FDD-LTE, TD-LTE, WCDMA/HSPA+/DC-HSPA+, GSM/GPRS/EDGE Data rate   LTE Cat 12 3CA UL 100 / Cat12 DL600 Mbps TW/WW   DC-HSPA+: UL 5.76 / DL 42 Mbps FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 17,19, 20, 28) TD-LTE (Bands 38, 39, 40, 41 (2545~2655MHz)) WCDMA (Bands 1, 2, 3, 4, 5, 6, 8, 19) EDGE/GPRS/GSM (850, 900, 1800, 1900MHz) US/CA/BR/CO   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) JP/IN   FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30) TD-LTE (Bands 38, 39, 40, 41) WCDMA (Bands 1, 2, 3, 4, 5, 6, 8, 19) EDGE/GPRS/GSM (850, 900, 1800, 1900MHz) ASUS phone 4G/LTE band compatibility varies by region, please check compatibility with local carriers.
Sensor	Fingerprint, Accelerator, E-Compass, Gyroscope, Proximity sensor, Ambient light sensor, RGB sensor
Battery	3600mAh (non-removable)
Power Adapter	Output: 9V 2A 18W
Operating System	Android™ 7 Nougat  with new ASUS ZenUI 4.0