Allview V4 Viper vs Xiaomi Redmi 4X

Allview V4 Viper

Xiaomi Redmi 4X

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

W-CDMA 900, 2100

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

LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800), 38(2600)

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

42.2 Mbps

42.2 Mbps
HSUPA speed

11.5 Mbps

5.76 Mbps
LTE speed

LTE Cat 4, 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 (Nano-SIM, dual SIM stand-by)

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

145.8 mm

139.2 mm
Width

70.9 mm

70 mm
Thickness

8.5 mm

8.7 mm
Weight

138 g

150 g
Colors

Blue, Red

Champagne Gold, Cherry Pink, Mate Black

Main camera
Camera type

Dual

-
Main camera

8 MP

13 MP, f/2.0
0.3 MP
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

-

phase detection autofocus
Primary camera flash

LED flash

LED flash
Camera features

-

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

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Java

-

No
Sensors

Accelerometer, fingerprint, proximity

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