Asus Zenfone AR ZS571KL vs vivo X20 Plus UD

Asus Zenfone AR ZS571KL

vivo X20 Plus UD

Network
2G network

GSM 850, 900, 1800, 1900

GSM 900, 1800; CDMA 800 & TD-SCDMA
3G network

HSDPA 850, 900, 1900, 2100 - EMEA; HSDPA 850, 1700(AWS), 1900, 2100 - USA

HSDPA 850, 900, 1900, 2100
4G network

LTE

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE-A speed

LTE-A, (3CA) Cat12, 600 Mbps download, 75 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Front glass, aluminum body
SIM

Dual SIM (Nano-SIM, dual stand-by)

Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

158.7 mm

155.3 mm
Width

77.7 mm

80.1 mm
Thickness

9 mm

7.5 mm
Weight

170 g

181.5 g
Colors

Black

Gold, Matte Black, Rose gold

Display
Display type

Super AMOLED capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

5.7 inches

6.43 inches
Resolution

1440 x 2560 pixels

1080 x 2160 pixels
Pixel density

515 ppi

376 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 4

-
Multitouch

Yes, max 10 fingers

Yes

Main camera
Main camera

23 MP, f/2.0 , 3x optical zoom

12 MP, f/1.8
Primary camera resolution

-

4032 x 3024 pixels
Primary camera video

2160p@30fps

1080p@30fps
Primary camera Autofocus

-

autofocus
Tracking sensors

depth & motion tracking sensors

-
Primary camera flash

-

LED flash
Primary camera optical image stabilization

4-axis optical image stabilization

-
Primary camera phase detection autofocus

phase detection autofocus

-
Camera features

1 µm pixel size, 1/2.6" sensor size, HDR, face detection, geo-tagging, panorama, touch focus

Geo-tagging, HDR, face detection, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

-
BDS

Yes

-

Features
Messaging SMS

SMS(threaded view)

SMS(threaded view)
Messaging MMS

MMS

MMS
Messaging Email

Email

Email
Messaging IM

IM

-
Messaging Push Email

-

Push Email
Messaging Push Mail

Push Mail

-
Java

No

-
Sensors

Fingerprint (front-mounted), accelerometer, compass, gyro, proximity

Fingerprint (under display), accelerometer, compass, proximity