Asus Zenfone 4 Pro ZS551KL
Device specification profile

Asus Zenfone 4 Pro ZS551KL

Complete hardware specifications, launch details and a structured technical breakdown from the TechMyte device database.

Released 2017, October
175g, 7.6mm thickness
Android 7.1.1, up to Android 8, ZenUI 4
64GB/128GB storage, microSDXC
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Sources and limitations

Specification source: GSMArena device record.

Listed specifications are reference information, not results of TechMyte testing. Rumored details may change, and hardware or supported features can differ by region. Confirm the exact model with its manufacturer before buying.

Battery capacity does not establish tested endurance; megapixel count does not establish camera quality. Use the comparison tool to identify differences, then check the features that matter to your use.

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Technical data sheet

Full Specifications

Network

TechnologyGSM / HSPA / LTE
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 17, 19, 20, 28, 38, 39, 40, 41 - Global, Taiwan
SpeedHSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 or 100 Mbps

Launch

Announced2017, August
StatusAvailable. Released 2017, October

Body

Dimensions156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in)
Weight175 g (6.17 oz)
SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame

Battery

TypeAMOLED
Talk timeUp to 27 h 30 min (3G)
Charging18W wired, 50% in 32 min (advertised)

Display

Size5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
Resolution1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
ProtectionCorning Gorilla Glass 5

Platform

OSAndroid 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4
ChipsetQualcomm MSM8998 Snapdragon 835 (10 nm)
CPUOcta-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
GPUAdreno 540

Memory

Card slotmicroSDXC (uses shared SIM slot)
Internal64GB 6GB RAM, 128GB 6GB RAM

Selfie camera

Single8 MP, f/1.9, 22mm (wide), 1/3.2", 1.4µm, PDAF
Video4K@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

Sound

Loudspeaker Yes, dual speakers
3.5mm jack Yes

Comms

WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth5.0, A2DP, EDR, LE, aptX
PositioningGPS, GLONASS, BDS, GALILEO
NFCYes
RadioFM radio
USBUSB Type-C 2.0, OTG
Infrared portYes

Features

SensorsFingerprint (front-mounted), accelerometer, gyro, proximity, compass, color spectrum

Misc

ColorsMoonlight white, Pure Black
PriceAbout 350 EUR
ModelsZ01GD, Z01GS

Main Camera

FeaturesLED flash, HDR, panorama
Dual12 MP, f/1.7, 25mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, Laser AF, 4-axis OIS 16 MP, 50mm (telephoto), 1/3.1", 1.0µm, AF, 2x optical zoom