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Model

Blackview BV4000

Compare Blackview BV4000 and Oppo A91

Blackview BV4000 vs Oppo A91

Blackview BV4000

Blackview BV4000

Oppo A91

Blackview BV4000

Oppo A91

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

HSDPA 900, 2100

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

-

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

21 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.5 Mbps
LTE speed

-

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2017

2019-12
Status

2017

2019-12

Design
Build

-

Aluminium alloy, glass
SIM

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

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

-

160.2 mm
Width

-

73.3 mm
Thickness

-

7.9 mm
Weight

215 g

172 g
Waterproof

Yes, IP68

-
Dust proof

Yes, IP68

-
Colors

Black, Orange, Green

Dark blue, Blue, Red

Display
Display type

IPS capacitive touchscreen

AMOLED capacitive touchscreen
Physical size

4.7 inches

6.4 inches
Resolution

720 x 1280 pixels

1080 x 2400 pixels
Pixel density

312 ppi

411 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Corning Gorilla Glass 3

Scratch resistant
Multitouch

Yes

Yes

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.3 GHz Cortex-A7

Quad-core 2.1 GHz Cortex-A73
CPU(second)

quad-core 2.0 GHz Cortex-A53
Chipset

Mediatek MT6580A

Mediatek MT6771V Helio P70
GPU

Mali-400 MP2

Mali-G72 MP3
Memory RAM

1 GB

8 GB
Internal storage

8 GB

128 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

-

256 GB

OS
OS

Android OS, v7.0 Nougat

ColorOS 6.1 (Android 9.0 Pie)

Main camera
Camera type

Dual

Quad
Main camera

8 MP, f/2.0

48 MP, f/1.8 , 26 mm, 1/2.0" , 0.8 µm
8 MP

8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm
2 MP, f/2.4 , 1/5" , 1.75 µm
2 MP, f/2.4 , 1/5" , 1.75 µm
Primary camera resolution

3264 x 2448 pixels

8000 x 6000 pixels
Primary camera video

720p@30fps

2160p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Autofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

Selfie camera
Selfie camera

2 MP, f/2.8

16 MP, f/2 , 26 mm, 1/3.1" , 1.0 µm
Selfie camera resolution

-

4608 x 3456 pixels
Selfie camera video

480p@30fps

1080p@30fps

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Earpiece

-

Yes

Multimedia
Radio

-

FM Radio
Radio FM

FM radio

-

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
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

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes

Features
Sensors

Accelerometer, light, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity, light

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Po
Battery capacity

3680 mAh

4025 mAh
Battery removable

Removable

Non-removable
Fast battery charging

-

VOOC Flash Charge 4.0 (50% in 30 min)
Talk time 2G

18.5 h

-
Talk time 3G

18.5 h

-
Standby time 2G

720 h

-
Standby time 3G

720 h

-

Cost
Price

-

290 USD

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