Allview V4 Viper Pro vs Nomu T20

Allview V4 Viper Pro

Nomu T20

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 900, 2100

HSDPA 850, 900, 1900, 2100
4G network

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

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

21.1 Mbps

-
HSUPA speed

5.76 Mbps

-
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE Cat 4, 150 Mbps download, 50 Mbps upload

LTE, Cat6, 301.5 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Aluminium alloy, polycarbonate
SIM

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

Dual SIM (Nano-SIM/NanoSIM(microSD))
Height

171 mm

156.5 mm
Width

82 mm

77.2 mm
Thickness

8.8 mm

17.8 mm
Weight

191.6 g

-
Waterproof

-

Yes, IP69K
Dust proof

-

Yes, IP69K
MIL-STD-810G

-

Yes
Colors

Grey

Black, Yellow

Main camera
Camera type

Dual

-
Main camera

13 MP

8 MP, f/2.0
0.3 MP
Primary camera resolution

-

3264 x 2448 pixels
Primary camera video

1080p@30fps

720p@30fps
Primary camera flash

LED flash

dual-LED flash
Camera features

-

Autofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C reversible connector
USB On-The-Go

-

Yes
Bluetooth

v4.0

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth EDR

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes