BLU Energy X 2 vs BLU Vivo XI

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 1700(AWS), 1900

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), 13(700), 17(700), 28(700), 66(1700/2100)
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11 Mbps
LTE speed

-

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Aluminium alloy, plastic
SIM

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

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

143.5 mm

149 mm
Width

71 mm

72.9 mm
Thickness

9.6 mm

7.9 mm
Weight

190 g

187 g
Colors

Gold, Grey

Black, Silver

Main camera
Camera type

-

Dual
Main camera

8 MP, f/2.2

16 MP, f/2.0 , 1/3" , 1.10 µm
5 MP, 1/5" , 1.12 µm
Primary camera resolution

-

4608 x 3456 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

autofocus

-
Primary camera flash

LED flash

LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

1/4" sensor size, face/smile detection, geo-tagging, 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

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 Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
Bluetooth

v4.0

v4.1
Bluetooth A2DP

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Accelerometer, proximity

Accelerometer, compass, fingerprint, light, proximity