BLU J4 vs Sony Xperia 1 II

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 frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 32(1500), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 66(1700/2100)
5G network

-

5G band 1(2100), 3(1800), 28(700), 77(3700), 78(3500); NSA/Sub6
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE-A (6CA), Cat19, 1600 Mbps download, 150 Mbps upload
5G speed

-

2+ Gbps download
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Aluminium alloy, glass
SIM

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

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

151 mm

165.1 mm
Width

72.3 mm

71.1 mm
Thickness

10 mm

7.6 mm
Weight

158 g

181.4 g
Waterproof

-

IP65/IP68, 1.5m and 30 minutes
Dust proof

-

IP65/IP68
Colors

Black, Blue, Brown

Black, Purple

Display
Display type

IPS LCD capacitive touchscreen

OLED capacitive touchscreen
Physical size

5.5 inches

6.5 inches
Resolution

720 x 1440 pixels

1644 x 3840 pixels
Pixel density

293 ppi

643 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, Corning Gorilla Glass 6
Multitouch

Yes

Yes
Display features

-

HDR BT.2020 compliant, Triluminos display for mobile, X-Reality Engine

Main camera
Camera type

Single

Quad
Main camera

8 MP

12 MP, f/1.7 , 26 mm, 1/1.7"
12 MP, f/2.4 , 70 mm, 1/3.4" , 1.0 µm, 3x optical zoom
12 MP, f/2.2 , 16 mm, 1/2.55"
TOF(time of flight) 3D camera , 0.3 MP
Primary camera resolution

-

4032 x 3024 pixels
Primary camera video

720p@30fps

2160p@24/25/30/60fps HDR, 1080p@30/60/120fps; 5-axis gyro-EIS, OIS
Primary camera optics

-

Carl Zeiss optics
Primary camera flash

LED flash

LED flash
Camera features

-

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

-

114
DxOMark zoom

-

63
DxOMark video

-

102
DxOMark camera score

-

112

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax
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 On-The-Go

-

Yes
Bluetooth

v4.1

v5.1
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
GALILEO

-

Yes
BDS

-

Yes