Asus ZenFone 4 Pro ZS551KL was officially announced in August 2017, Device released in October 2017 Asus ZenFone 4 Pro ZS551KL made under Zenfone.

Mobile Network Support and Band

Asus ZenFone 4 Pro ZS551KL have Hybrid Dual Sim Card Slots,Asus ZenFone 4 Pro ZS551KL support all GSM Based network providers. Asus ZenFone 4 Pro ZS551KL mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 900,HSDPA 1900,HSDPA 2100,Asus ZenFone 4 Pro ZS551KL also support LTE based 4G Networks Support at Frequency level LTE 700,LTE 2100,LTE 800,LTE 1800,LTE 2600,LTE 850,LTE 1700,LTE 900,LTE 1900,LTE 2300,LTE 2500, (3xCA),comes with network handling support with Network settings and work offline with flight Mode.

Device Body Design and Display

Asus ZenFone 4 Pro ZS551KL is a Phablet device and it have device dimension with 156 x 74 x 8 mm, Exactly 156.9 x 75.6 x 7.6 mm. Phone weight including the Battery 175g. Phone gave a dedicated Volume,Power,Fingerprint Key. Asus ZenFone 4 Pro ZS551KL display enhanced with AMOLED Capacitive Touch Screen, (Blue Eye Care,100% NTSC,Asus Splendid,500 nits Brightness) capable to display 16M Colors at ~401 ppi Pixel Density Touch screen with Multi Touch Support optimized by . Display Resolution of this phone is 1080 x 1920 pixels (Full HD) compact with the 5.5 Inch display with Mode.Device has Loudspeaker to amplify music playback and tones,

Device Hardware and Operating System

Asus ZenFone 4 Pro ZS551KL equipped for Android 7.1 (Nougat), (Asus Zen UI 4.0) Operating System, Device hardware empoweredby Qualcomm Snapdragon 835 Chipsetand Octa Core Processor Processor handle manipulate tasks,at the speed of 2.45 GHz.device have 6 GB RAM.Asus ZenFone 4 Pro ZS551KL have internal storage 64 GB,128 GB.memory can upgrade Upto 2 TB with MicroSD, (Uses Sim 2 Slot).Asus ZenFone 4 Pro ZS551KL have 12 MP Cameraand there is no Camera Flashand 8.0 MP Secondary front Camera.

Device Photography and Video

Asus ZenFone 4 Pro ZS551KL 12 MP and Photo output come at 12 MP, + 16MP (Dual Camera Lens) Resolution in size camera help us to catch our favorite movements at Photographs and Videos HD Quality.Photo as includes date tagging and GPS based Geo Tagging.VideoVideo Recording at 2160p 30 FPS, (Slow Motion Video)quality.  Camera has powerful 10X, (2X Optical Zoom) digital zoom help us to focus objects very clear. Touch focus,Face Detection,Smile detection,Video Stabilization (EIS),HDR,Burst Mode,Face Beauty,Voice Capture,Laser Auto Focus,Gesture Shot,PDAF Sensor, Sony IMX362 / IMX351 Sensor,F1.7 Aperture,4-axis OIS,Dual Pixel PDAF,Pixel Master 4.0,3-axis EIS features also help us to take more precious photos for our daily use.Camera has powerful digital zoom help us to focus objects very clear. Asus ZenFone 4 Pro ZS551KL have secondary front camera and takes high quality photos as well Enhanced Camera features like TV Output helps to connect our device directly through LED, LCD TV through Asus ZenFone 4 Pro ZS551KL.Asus ZenFone 4 Pro ZS551KL have Sweep Panorama to take pictures around you.

Memory and Entertainment Features

Asus ZenFone 4 Pro ZS551KL Supports major auto Formats WAV, AAC, AMR, MP3, M4A, WMA, MIDI, FLAC, OGG, AAC+, eAAC+ and video Formats 3GP, MP4, FLV, WMV, xVID, AVI, MKV, H.264, H.263, M4V, H.265, device haveMini headphone headphone jackAsus ZenFone 4 Pro ZS551KL have internal storage 64 GB,128 GB help to storage enough data of music and video files.expendable memory can upgrade Upto 2 TB with MicroSD, (Uses Sim 2 Slot) Memory Card.Asus ZenFone 4 Pro ZS551KL supports Stereo FM Radio along with FM Recording feature.Device have the power to playback musics Up to 48 Hrs through standard Media Player.able to play videos Up to 8 Hrs

Internet and Data Communication

Asus ZenFone 4 Pro ZS551KL Supports 2G Transfersand 3G TransfersData Transfer with GPRS and with EDGE.Data communication speed through HSUPA 5.76 Mbps,HSDPA 42 Mbps,HSPA plus,LTE CAT12 600 Mbps DL, LTE 100 Mbps UL,Data connection also through Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, Dual Band.Wi-Fi supports dual band Hotspot support to share internet connection through Asus ZenFone 4 Pro ZS551KL. Device support to browse web pages through with Google Chrome Browser, which supports you to browse web pages.browser also supports Adobe Flash .
Personal data transfers through Bluetooth 5.0, With LE, EDR Device comes with Google Maps which helps to view mapsand locate our location through GPS Tracking help us for Navigation or Direction . Device supports messaging features SMS,MMS,Email,Push Mail,IM,Hangouts.