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Asus Zenfone 4 Pro ZS551KL vs Vivo X20
Asus Zenfone 4 Pro ZS551KL
Announced On:
October, 2017
Change Mobile Phone
Vivo X20
Announced On:
September, 2017
Change Mobile Phone
Asus Zenfone 4 Pro ZS551KL vs Vivo X20
Asus Zenfone 4 Pro ZS551KL
Vivo X20
Price
EUR:
350
EUR:
390
USD:
N/A
USD:
N/A
GBP:
N/A
GBP:
N/A
INR:
N/A
INR:
N/A
PKR:
N/A
PKR:
N/A
Body
Form Factor
Candybar, Touchscreen
Candybar, Touchscreen
Dimensions
156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in)
155.9 x 75.2 x 7.2 mm (6.14 x 2.96 x 0.28 in)
Weight
175 g (6.17 oz)
159 g (5.61 oz)
Build
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Glass front, aluminum back, aluminum frame
Colors
Moonlight white, Pure Black
Matte Black, Black/Gold, Gold, Rose gold, Blue, Pink
Models
Z01GD, Z01GS
X20A, 1721
Display
Type
AMOLED
Super AMOLED
Size
5.5 inches, 83.4 cm
2
(~70.3% screen-to-body ratio)
6.01 inches, 93.2 cm
2
(~79.5% screen-to-body ratio)
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
1080 x 2160 pixels, 18:9 ratio (~402 ppi density)
Multitouch
Yes, up to 10 fingers
Yes
Protection
Corning Gorilla Glass 5
Network
Technology
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
2G Bands
GSM 850 / 900 / 1800 / 1900 SIM 1 & SIM 2
GSM 900 / 1800 SIM 1 & SIM 2
3G Bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100
4G Bands
1, 2, 3, 4, 5, 7, 8, 17, 19, 20, 28, 38, 39, 40, 41 Global, Taiwan
1, 2, 3, 5, 7, 8, 34, 38, 39, 40, 41
Notifications
Alert Types
Vibration, MP3, WAV ringtones
Vibration, MP3, WAV ringtones
Memory
Internal Memory
64GB ROM, 6GB RAM
128GB ROM, 6GB RAM
64GB ROM, 4GB RAM
Storage Type
eMMC 5.1
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (uses shared SIM slot)
Connectivity
GPRS
Yes
Yes
EDGE
Yes
Yes
Speed
HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 or 100 Mbps
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, EDR, LE, aptX
5.0, A2DP, LE
USB
USB Type-C 2.0, OTG
microUSB 2.0, OTG
Infrared Port
Yes
GPS
Yes, with A-GPS, GLONASS, BDS, GALILEO
Yes, with A-GPS
NFC
Yes
No
Camera
Main Camera
Primary:
12 MP, f/1.7, 25mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, Laser AF, 4-axis OIS
Secondary:
16 MP, 50mm (telephoto), 1/3.1", 1.0µm, AF, 2x optical zoom
Primary:
12 MP, f/1.8, AF
Secondary:
5 MP, f/2.4, (depth)
Camera Features
LED flash, HDR, panorama
LED flash, HDR, panorama
Video
4K@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps
1080p@30fps
Selfie Camera
8 MP, f/1.9, 22mm (wide), 1/3.2", 1.4µm, PDAF
Features:
HDR
Video:
1080p@30fps
12 MP, f/2.0, (wide), 1/2.8", 1.28µm
Multimedia
Audio Format Support
MP3/WAV/eAAC+
MP3/WAV/eAAC+/FLAC
Video Format Support
MP4/H.264
MP4/H.264
Radio
FM radio
No
Software
Operating System (OS)
Android OS, v7.1.1 (Nougat)
Android OS, v7.1.1 (Nougat)
Upgradable
Upgradable to Android 8.0 (Oreo)
Upgradable to Android 8.0 (Oreo)
UI
ZenUI 4
Funtouch 3.2
Browser
HTML5
HTML5
Messaging
SMS(threaded view), MMS, Email, Push Email, IM
SMS(threaded view), MMS, Email, Push Email, IM
Hardware
Chipset
Qualcomm MSM8998 Snapdragon 835 (10 nm)
Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU
Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
Adreno 540
Adreno 512
Sensors
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, color spectrum
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
SIM
Hybrid Dual SIM (Nano-SIM, dual stand-by)
Hybrid Dual SIM (Nano-SIM, dual stand-by)
Speakers
Yes, dual speakers
24-bit/192kHz audio
Yes
32-bit/192kHz audio
Audio Jack
3.5 mm
3.5 mm
Battery
Battery Type
Li-Ion 3600 mAh, non-removable
Li-Ion 3250 mAh, non-removable
Charging
18W wired, 50% in 32 min (advertised)
Fast charging 18W
Talk Time
Up to 27 h 30 min (3G)
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