BLU Vivo XL4 vs Cubot X19 S

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

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

HSDPA 900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 28(700), 66(1700/2100)

LTE frequency band 1, 3, 7, 8, 20
HSDPA speed

42.2 Mbps

-
HSUPA speed

11.5 Mbps

-
LTE speed

LTE-A (2CA), Cat6, 300 Mbps download, 50 Mbps upload

LTE, Cat6, 301 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, plastic

Plastic
SIM

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

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

157.2 mm

155.06 mm
Width

76.2 mm

74.67 mm
Thickness

8 mm

9.55 mm
Weight

178 g

174 g
Colors

Black, Gold

Black, Purple-Blue

Main camera
Camera type

Dual

Dual
Main camera

13 MP, f/2.0 , 1/3"

16 MP, f/2.0 , 26 mm, 1.029 µm
2 MP

2 MP
Primary camera resolution

4160 x 3120 pixels

4608 x 3456 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED flash

dual-LED flash
Primary camera phase detection autofocus

phase detection autofocus

-
Camera features

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

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

Connectivity
WLAN

Wi-Fi 802.11a, 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 Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v4.2
Bluetooth A2DP

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes