Asus Zenfone Go ZB551KL vs Xiaomi Redmi 4 (4X)

Asus Zenfone Go ZB551KL

Xiaomi Redmi 4 (4X)

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; GSM 900, 1800 - India
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO & TD-SCDMA - China; HSDPA 900, 2100 - India
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800)

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

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

-
LTE-A speed

-

LTE-A, (2CA) Cat6, 300 Mbps download, 100 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
SIM

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

Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)
Height

151 mm

139.2 mm
Width

76.9 mm

70 mm
Thickness

10.7 mm

8.7 mm
Weight

160 g

150 g
Colors

Charcoal Black, Floral Pink, Glacier Gray, Glamour Red, Lake Blue, Pearl White, Sheer Gold, Silver Blue

Black, Gold

Main camera
Main camera

13 MP, f/2.0

13 MP, f/2.0
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

autofocus

phase detection autofocus
Primary camera flash

dual-LED (dual tone) flash

LED flash
Camera features

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

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

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

-
Messaging Push Mail

-

Push Mail
Java

No

No
Sensors

Accelerometer, proximity

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