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Model

Compare Bravis NB851 and vivo V20

Bravis NB851 vs vivo V20

Bravis NB851

vivo V20

Bravis NB851

vivo V20

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 900, 2100

HSDPA 850, 900, 2100
4G network

-

LTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 39, 40, 41
HSDPA speed

21 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

Availability
Oficially announced

2018-10

2020-09
Status

2018-10

2020-10

Design
Build

Plastic

Aluminium alloy, glass
SIM

Dual SIM (dual stand-by)

Glass front, glass back
Height

122.8 mm

161.3 mm
Width

206.5 mm

74.2 mm
Thickness

7.7 mm

7.4 mm
Weight

332 g

171 g
Colors

Black

Sunset Melody, Midnight Jazz, Moonlight Sonata

Display
Display type

IPS capacitive touchscreen

AMOLED
Physical size

8 inches

6.44 inches
Resolution

1280 x 800 pixels

1080 x 2400 pixels
Pixel density

189 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

Dual-core 2.3 GHz Kryo 465 Gold
CPU(second)

Hexa-core 1.8 GHz Kryo 465 Silver
Chipset

Mediatek MT8321

Qualcomm SM7125 Snapdragon 720G
GPU

Mali-400 MP2

Adreno 618
Memory RAM

1 GB

8 GB
Internal storage

16 GB

128, 256 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

32 GB

-

OS
OS

Android 8.1 Oreo

Android 11, Funtouch 11

Main camera
Camera type

Single

Triple
Main camera

2 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

1600 x 1200 pixels

9280 x 6920 pixels
Primary camera video

720p@30fps

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

LED flash

LED flash
Camera features

Continuous shooting, digital zoom, geotagging, panorama, HDR, face detection, white balance settings, ISO settings, self-timer

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

-

Single
Selfie camera

0.3 MP

44 MP, (wide) , f/2.0
Selfie camera resolution

640 x 480 pixels

-
Selfie camera features

-

Autofocus, face unlock, HDR
Selfie camera video

480p@30fps

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

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes

Multimedia
Radio

FM Radio

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
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

Yes (market dependent)
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-Ion

Li-Po
Battery capacity

4000 mAh

4000 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

-

Yes

Tests and performance
Antutu

-

274500 (v8)
Geekbench(multi-core)

-

1686 (v5.1)

Cost
Price

-

340 USD

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