Asus Zenfone 4 Pro ZS551KL vs Xiaomi Mi A2

Asus Zenfone 4 Pro ZS551KL

Xiaomi Mi A2

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

HSDPA 800, 850, 900, 1700(AWS), 1800, 1900, 2100

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 19(800), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Global, Taiwan; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 41(2500) - US, Canada, Brazil; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500) - India

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
HSPA speed

-

HSPA
LTE speed

-

LTE
LTE-A speed

LTE-A, (3CA) Cat12, 600 Mbps download, 150 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Front glass, aluminum body
SIM

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

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

156.9 mm

158.7 mm
Width

75.6 mm

75.4 mm
Thickness

7.6 mm

7.3 mm
Weight

175 g

168 g
Colors

Moonlight white, Pure Black

Black, Cherry Pink, Flame Red, Glacier Blue, Sand Gold

Display
Display type

AMOLED capacitive touchscreen

LTPS IPS LCD capacitive touchscreen
Physical size

5.5 inches

5.99 inches
Resolution

1080 x 1920 pixels

1080 x 2160 pixels
Pixel density

401 ppi

403 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 5

Corning Gorilla Glass 3
Multitouch

Yes, max 10 fingers

Yes

Main camera
Camera type

Dual

Dual
Main camera

12 MP, f/1.7 , 25 mm, 2x optical zoom

12 MP, f/1.8 , 2x optical zoom , 1/2.9" , 1.25 µm
16 MP, 50 mm

20 MP, f/1.8 , 1/2.8" , 1 µm
Primary camera resolution

-

4000 x 3000 pixels
Primary camera video

2160p@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

2160p@30fps, 1080p@30fps, 720p@120fps
Primary camera Autofocus

laser/phase detection autofocus

phase detection autofocus
Primary camera flash

LED flash

LED flash
Primary camera optical image stabilization

4-axis optical image stabilization

-
Electronic image stabilization

-

EIS (gyro)
Camera features

25mm (1/2.55" sensor size, 1.4 µm pixel size), 50mm (1/3.1" sensor size, 1.0 µm pixel size), geo-tagging, touch focus, face detection, HDR, panorama

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 reversible connector

Type-C 1.0 reversible connector
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

Yes

-
Bluetooth AptX

Yes

-
Infrared

Yes

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

Yes

Features
Messaging SMS

SMS(threaded view)

SMS(threaded view)
Messaging MMS

MMS

MMS
Messaging Email

Email

Email
Messaging IM

IM

IM
Messaging Push Email

Push Email

Push Email
Java

No

-
Sensors

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

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