BLU Studio J8 vs BLU Vivo XL4

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 1700(AWS), 1900, 2100

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

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.5 Mbps
LTE speed

-

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Aluminium alloy, plastic
SIM

Dual SIM (Nano-SIM/ Micro-SIM)

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

155.7 mm

157.2 mm
Width

77.6 mm

76.2 mm
Thickness

8.9 mm

8 mm
Weight

183 g

178 g
Colors

Black, Gold, Rose Gold, Silver

Black, Gold

Main camera
Camera type

-

Dual
Main camera

8 MP

13 MP, f/2.0 , 1/3"
2 MP
Primary camera resolution

-

4160 x 3120 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED flash

LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

Geo-tagging, face detection, touch focus

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

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Fingerprint (rear-mounted), accelerometer, proximity

Accelerometer, compass, fingerprint, light, proximity