BLU J4 vs Realme 6

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 2100
4G network

-

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)
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, 75 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

IPS LCD capacitive touchscreen
Physical size

5.5 inches

6.5 inches
Resolution

720 x 1440 pixels

1080 x 2400 pixels
Pixel density

293 ppi

405 ppi
Display colors

16777216

16777216
Protection

-

2.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3
Multitouch

Yes

Yes
Display features

-

480 nits typ. brightness, 90Hz, 120Hz touch-sensing

Main camera
Camera type

Single

Quad
Main camera

8 MP

64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm
8 MP, f/2.3 , 13 mm, 1/4.0" , 1.12 µm
2 MP, f/2.4 , 22 mm, 1/5.0" , 1.75 µm
2 MP, f/2.4
Primary camera resolution

-

9280 x 6944 pixels
Primary camera video

720p@30fps

2160@30fps, 1080p@30/60/120fps, gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

-

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB On-The-Go

-

Yes
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
BDS

-

Yes