BLU J4 vs Sony Xperia XZ1

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100
4G network

-

LTE
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE-A speed

-

LTE-A, (4CA) Cat16, 1024 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

-
SIM

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

Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

151 mm

148 mm
Width

72.3 mm

73.4 mm
Thickness

10 mm

7.4 mm
Weight

158 g

155 g
Waterproof

-

IP68, 1.5m and 30 minutes
Dust proof

-

IP68
Colors

Black, Blue, Brown

Black, Moonlit Blue, Venus Pink, Warm Silver

Main camera
Camera type

Single

-
Camera type

-

Photo / Video
Main camera

8 MP

19 MP, f/2.0 , 25 mm
Primary camera video

720p@30fps

2160p@30fps, 1080p@30/60fps, 720p@960fps
Primary camera Autofocus

-

predictive phase detection and laser autofocus
Primary camera flash

LED flash

LED flash
Electronic image stabilization

-

EIS (gyro)
Camera features

-

1.22µm pixel size, 1/2.3" sensor size, HDR, face/smile detection, geo-tagging, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
WLAN DLNA

-

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB host

-

Yes
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
BDS

-

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Email

-

Push Email
Java

-

No
Sensors

Accelerometer

Fingerprint (side-mounted), accelerometer, barometer, color spectrum, compass, gyro, proximity