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Model

Compare BLU J4 and vivo V20 Pro

BLU J4 vs vivo V20 Pro

BLU J4

vivo V20 Pro

BLU J4

vivo V20 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

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

-

LTE frequency band 1, 3, 4, 5, 7, 8, 28, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 41, 77, 78 SA/NSA
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE-A, Cat4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2019-10

2020-09
Status

2019-10

2020-09

Design
Build

Plastic

Plastic
SIM

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

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

151 mm

158.8 mm
Width

72.3 mm

74.2 mm
Thickness

10 mm

7.4 mm
Weight

158 g

170 g
Colors

Black, Blue, Brown

Sunset Melody, Midnight Jazz, Moonlight Sonata

Display
Display type

IPS LCD capacitive touchscreen

AMOLED
Physical size

5.5 inches

6.44 inches
Resolution

720 x 1440 pixels

1080 x 2400 pixels
Pixel density

293 ppi

409 ppi
Display colors

16777216

16777216
Protection

-

2.5D curved glass screen
Multitouch

Yes

-

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.3 GHz Cortex-A7

Single-core 2.4 GHz Kryo 475 Prime
CPU(second)

Single-core 2.2 GHz Kryo 475 Gold
CPU(third)

Hexa-core 1.8 GHz Kryo 475 Silver
Chipset

-

Qualcomm SM7250 Snapdragon 765G
GPU

Mali-400

Adreno 620
Memory RAM

1 GB

8 GB
Internal storage

32 GB

128 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

64 GB

-
Storage

eMMC 5.1

-

OS
OS

Android 8.1 Oreo Go Edition

Android 10, Funtouch 11

Main camera
Camera type

Single

Triple
Main camera

8 MP

64 MP, (wide) , f/1.9 , 26 mm, 1/1.72" , 0.8 µm
(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
(depth) , 2 MP, f/2.4
Primary camera resolution

-

9280 x 6920 pixels
Primary camera video

720p@30fps

4K@30fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

LED flash

dual-LED dual-tone flash
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, macro-mode, phase detection autofocus, super night mode

Selfie camera
Selfie camera type

-

Dual
Selfie camera

8 MP

44 MP, (wide) , f/2.0
(ultrawide) , 8 MP, f/2.3 , 1/4.0" , 1.12 µm
Selfie camera features

-

Autofocus, face unlock, HDR
Selfie camera video

720p@30fps

4K@30fps, 1080p@30fps, gyro-EIS

Sound
3.5mm jack

Yes

No
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes

Multimedia
Radio

FM Radio

No

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
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Sensors

Accelerometer

Accelerometer, compass, fingerprint, gyroscope, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Po
Battery capacity

2200 mAh

4000 mAh
Battery removable

Removable

Non-removable
Fast battery charging

-

Yes

Cost
Price

75 USD

410 USD

Tests and performance
Antutu

-

321000 (v8)
Geekbench(single-core)

-

631 (v5.2)
Geekbench(multi-core)

-

1955 (v5.2)

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