BLU J4 vs Huawei P30

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
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), 6(900), 7(2600), 8(900), 9(1800), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 32(1500), 34(2000), 38(2600), 39(1900), 40(2300)
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE-A, Cat21, 1400 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Aluminium alloy, glass
SIM

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

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

151 mm

149.1 mm
Width

72.3 mm

71.4 mm
Thickness

10 mm

7.6 mm
Weight

158 g

165 g
Waterproof

-

IP53
Dust proof

-

IP53
Colors

Black, Blue, Brown

Black, Blue, Green, Red, White

Display
Display type

IPS LCD capacitive touchscreen

OLED capacitive touchscreen
Physical size

5.5 inches

6.1 inches
Resolution

720 x 1440 pixels

1080 x 2340 pixels
Pixel density

293 ppi

422 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass
Multitouch

Yes

Yes
Display features

-

HDR10, DCI-P3

Main camera
Camera type

Single

Triple
Main camera

8 MP

40 MP, f/1.8 , 27 mm, 1/1.7" , 3x optical zoom
16 MP, f/2.2 , 17 mm
8 MP, f/2.4 , 80 mm, 1/4"
Primary camera resolution

-

7296 x 5472 pixels
Primary camera video

720p@30fps

2160p@30fps, 1080p@60fps, 1080p@30fps (gyro-EIS), 720p@960fps
Primary camera optics

-

Leica optics
Primary camera flash

LED flash

dual-LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

-

Autofocus, continuous shooting, digital zoom, digital image stabilization, 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 5GHz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

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
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
Beidou

-

Yes
QZSS

-

Yes