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asus zenfone ar zs571kl
asus zenfone 4 pro zs551kl

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Brand
 asus asus
Model
 asus zenfone ar zs571kl asus zenfone 4 pro zs551kl
Announced
 2017 January 2017 August
Status
 Available. Released 2017 June Available. Released 2017 October
Device Body
 glass front ( gorilla glass 5 ) | glass back ( gorilla glass 5 ) | aluminum frame
Dimensions
 158.7 x 77.7 x 9 mm ( 6.25 x 3.06 x 0.35 in ) 156.9 x 75.6 x 7.6 mm ( 6.18 x 2.98 x 0.30 in )
Weight in gram
 170 175
SIM card
 Hybrid dual SIM ( Nano-SIM | dual stand-by ) Hybrid dual SIM ( Nano-SIM | dual stand-by )
Water Resistance
 No
Display type
 Super AMOLED capacitive touchscreen | 16millioncolors AMOLED
Display resolution
 1440 x 2560 pixels | 16 : 9 ratio ( ~515 pixel per inch density ) 1080 x 1920 pixels | 16 : 9 ratio ( ~401 pixel per inch density )
Display size
 5.7 inches | 89.6 cm2 ( ~72.6% screen to body ratio ) 5.5 inches | 83.4 cm2 ( ~70.3% screen to body ratio )
Display Protection
 corning gorilla glass 5
Operating System
 android 7 ( nougat ) | zenui 3 android 7.1.1 ( nougat ) | upgradable to android 8 ( oreo ) | zenui 4
CPU
 Quad-core ( 2x2.35 GHz kryo & 2x1.6 GHz kryo ) Octa-core ( 4x2.45 GHz kryo & 4x1.9 GHz kryo )
Chipset
 Qualcomm msm8996 snapdragon 821 ( 14 nm ) Qualcomm msm8998 snapdragon 835 ( 10 nm )
GPU
 adreno 530 adreno 540
Memory card
 microsdxc ( uses shared sim slot ) microsdxc ( uses shared sim slot )
Memory v1
 64gb 6gb RAM 64gb 6gb RAM
Memory v2
 128gb 6gb RAM | 256gb 8gb RAM 128gb 6gb RAM
Primary camera
23 megapixel| lens aperture2.0 | 1/2.6" | 1.0µm | phase detection autofocus | 4-axis OIS | depth & motion tracking sensors
12 megapixel| lens aperture1.7 | 25mm ( wide ) | 1/2.55" | 1.4µm | Dual Pixel phase detection autofocus | Laser Auto focus | 4-axis OIS
16 megapixel| 50mm ( telephoto ) | 1/3.1" | 1.0µm | Auto focus | 2x optical zoom
Secondary camera
8 megapixel| lens aperture2.0
8 megapixel| lens aperture1.9 | 22mm ( wide ) | 1/3.2" | 1.4µm | phase detection autofocus
Loud speaker
 Yes Yes dual speakers
Audio jack
 Yes Yes
WLAN
 Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot
Bluetooth
 4.2 | a2dp | le 5.0 | a2dp | edr | le | aptx
GPS
 Yes with a-gps glonass bds Yes with a-gps glonass bds galileo
NFC
 Yes
Radio
 FM Radio FM Radio
USB
 2.0 | Type-C 1.0.0 reversible connector | USB on-the-go USB Type-C 2.0 | USB on-the-go
Sensors
 fingerprint ( front-mounted ) | accelerometer | gyroscope | proximity | compass | barometer fingerprint ( front-mounted ) | accelerometer | gyroscope | proximity | compass | color spectrum
Battery
 Non-removable Li-lon 3300 mAh battery Li-lon 3600 mAh | Non-removable
Battery Charge
 Fast charging 18w | 50% in 32 min ( advertised )
Colors
 black white color gradations, black color gradations
Network technology
 gsm / hspa / lte gsm / hspa / lte
5G bands
Network speed
 hspa 42.2/5.76 mbps lte-a (3ca) cat12 600/75 mbps hspa 42.2/5.76 mbps lte-a (3ca) cat12 600/150 or 100 mbps
GPRS
EDGE
Approx price
  • 310 GBP
  • 378 EUR
  • 3660 NOK
  • 3900 SEK
  • 23600 RUB
  • 380 USD
  • 1990 BRL
  • 550 AUD
  • 500000 KRW
  • 51000 JPY
  • 520 SGD
  • 1680 MYR
  • 1380 AED
  • 6400 ZAR
  • 300 GBP
  • 355 EUR
  • 3460 NOK
  • 3700 SEK
  • 22300 RUB
  • 360 USD
  • 1880 BRL
  • 520 AUD
  • 470000 KRW
  • 48000 JPY
  • 490 SGD
  • 1590 MYR
  • 1310 AED
  • 6000 ZAR