Comparison between:
- Vivo NEX Dual Display
- Vivo NEX S
- nubia X

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

Vivo NEX Dual DisplayVivo NEX Snubia X
Vivo NEX Dual Display
Prices
Vivo NEX S
Prices
nubia X
Prices
Model aliasNEX Dual Screen
V1821A
V1821T
NEX UltimateNX616J

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width75.3 mm
7.53 cm
0.25 ft
2.96 in
77 mm
7.7 cm
0.25 ft
3.03 in
73.3 mm
7.33 cm
0.24 ft
2.89 in
Height157.19 mm
15.72 cm
0.52 ft
6.19 in
162 mm
16.2 cm
0.53 ft
6.38 in
154.1 mm
15.41 cm
0.51 ft
6.07 in
Thickness8.09 mm
0.81 cm
0.03 ft
0.32 in
7.98 mm
0.8 cm
0.03 ft
0.31 in
8.4 mm
0.84 cm
0.03 ft
0.33 in
Weight199 g
0.44 lbs
7.03 oz
199 g
0.44 lbs
7.02 oz
181 g
0.4 lbs
6.38 oz
Volume95.76 cm³
5.82 in³
99.54 cm³
6.05 in³
94.88 cm³
5.76 in³
ColorsRed
Blue
Black
Red
Blue
Gold
Blue
Gray
Body materialsAluminium alloy
Glass
Aluminium alloy
Polycarbonate
Glass
Aluminium alloy

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeNano-SIMNano-SIMNano-SIM
Number of SIM cards222
Features-Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)-

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHz
CDMA 1900 MHz
CDMA 800 MHzCDMA 800 MHz
TD-SCDMATD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
UMTSUMTS 800 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 800 MHz (B18)
LTE 800 MHz (B19)
LTE 1900 MHz (B25)
LTE 850 MHz (B26)
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 800 MHz (B18)
LTE 800 MHz (B19)
LTE 1900 MHz (B25)
LTE 850 MHz (B26)
LTE 700 MHz (B28)
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE-TDD 2000 MHz (B34)

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesUMTS
EDGE
GPRS
HSPA+
LTE Cat 16
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 16
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 18
EV-DO Rev. A
TD-SCDMA
TD-HSDPA

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)Funtouch 4.5 OS (Android 9.0 Pie)Funtouch 4.0 OS (Android 8.1 Oreo)Android 8.1 Oreo
User interface (UI)--nubia 6.0.2

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCQualcomm Snapdragon 845Qualcomm Snapdragon 845Qualcomm Snapdragon 845
Process technology10 nm10 nm10 nm
CPU4x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 3854x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 3854x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 385
CPU bits64 bit64 bit64 bit
Instruction setARMv8-AARMv8-AARMv8-A
Level 1 cache memory (L1)32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB
Level 2 cache memory (L2)1536 KB
1.5 MB
1536 KB
1.5 MB
1536 KB
1.5 MB
Level 3 cache memory (L3)2048 KB
2 MB
2048 KB
2 MB
2048 KB
2 MB
CPU cores888
CPU frequency2800 MHz2800 MHz2800 MHz
GPUQualcomm Adreno 630Qualcomm Adreno 630Qualcomm Adreno 630
GPU frequency710 MHz710 MHz710 MHz
RAM capacity10 GB8 GB6 GB
8 GB
RAM typeLPDDR4XLPDDR4XLPDDR4X
RAM channelsDouble channelDouble channelDouble channel
RAM frequency1866 MHz1866 MHz1866 MHz

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage128 GB128 GB
256 GB
64 GB
128 GB
256 GB
512 GB
--UFS 2.1

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
--

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologySuper AMOLEDAMOLEDIPS
Diagonal size6.39 in
162.31 mm
16.23 cm
6.59 in
167.39 mm
16.74 cm
6.26 in
159 mm
15.9 cm
Width2.68 in
68.02 mm
6.8 cm
2.79 in
70.74 mm
7.07 cm
2.68 in
68.07 mm
6.81 cm
Height5.8 in
147.37 mm
14.74 cm
5.97 in
151.7 mm
15.17 cm
5.66 in
143.7 mm
14.37 cm
Aspect ratio2.167:12.144:12.111:1
Resolution1080 x 2340 pixels1080 x 2316 pixels1080 x 2280 pixels
Pixel density403 ppi
158 ppcm
388 ppi
152 ppcm
403 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area84.96 %86.31 %86.87 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 5
2.5D curved glass screen
COF (Chip-On-Flex)
Secondary Super AMOLED display - 5.49 in; 1080x1920 pixels; Corning Gorilla Glass 5; 2.5D curved glass screen
450 cd/m²Corning Gorilla Glass 3
2.5D curved glass screen
LTPS (Low Temperature PolySilicon)
1200:1 contrast ratio
96% NTSC
Secondary AMOLED display - 5.1 in; 720x1520 pixels; Corning Gorilla Glass 3; 2.5D curved glass screen

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Infrared face recognition sensor
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Ultrasonic
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
In-display fingerprint sensorFingerprint sensor model - Synaptics FS9500 Clear ID / Goodix (In-display fingerprint sensor)-

Primary camera

The primary camera of the mobile device is usually placed at its back and is used for taking photos and recording videos.

Sensor modelSony IMX363 Exmor RSSony IMX363 Exmor RS-
Sensor typeCMOSCMOSCMOS
ISO50 - 3200--
Aperturef/1.79f/1.8f/1.8
Focal length4.35 mm4.35 mm-
Flash typeDual LEDDual LEDDual LED
Image resolution4032 x 3024 pixels
12.19 MP
4032 x 3024 pixels
12.19 MP
4608 x 3456 pixels
15.93 MP
Video resolution3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Sensor size - 1/2.55"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
4-axis OIS
Focal length (35 mm equivalent) - 30 mm
Secondary rear camera - 2 MP
Pixel size - 2.9 μm (#2)
Aperture size - f/1.8 (#2)
TOF (Time Of Flight) 3D camera
Aperture size - f/1.3 (#TOF)
Face unlock
Sensor size - 1/2.55"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
4-axis OIS
Focal length (35 mm equivalent) - 30 mm
720p @ 240 fps
Secondary rear camera - 5 MP
Aperture size - f/2.4 (#2)
Sensor size - 1/2.6"
Pixel size - 1.22 μm
Phase detection
6-element lens
720p @ 240 fps
Secondary rear camera - 24 MP
Aperture size - f/1.7 (#2)
Secondary flash type - Dual LED (#2)

Secondary camera

Secondary cameras are placed above the screen of the device and are usually used for video calls, gesture recognition, etc.

Sensor type-CMOS-
Aperture-f/2-
Focal length-2.85 mm-
Image resolution-3264 x 2448 pixels
7.99 MP
-
Video resolution-1920 x 1080 pixels
2.07 MP
-
Video FPS-30 fps-
-Pop-up front camera
Focal length (35 mm equivalent) - 28 mm
-

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Earpiece
LoudspeakerLoudspeaker
Earpiece
Asahi Kasei AK4377ACS43199
SSM6322
Screen SoundCasting Technology
Dolby Surround 7.1
DTS HD
Smart PA
Headphone adapter

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioNoNo-

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
2x2 MiMO2x2 MiMO-

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version5.05.05.0
FeaturesA2DPA2DPA2DP
LE

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector typeUSB Type-CUSB Type-CUSB Type-C
Version2.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackYesYesNo

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
VoLTE

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
AVI
DivX
Flash Video
H.263
H.264
H.265
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
DivX
Flash Video
H.263
H.264
H.265
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
Flash Video
H.263
H.264
MKV
QuickTime
MP4
WebM
WMV
Xvid

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity3500 mAh4000 mAh3800 mAh
TypeLi-PolymerLi-PolymerLi-Polymer
Charger output power5 V / 2 A
9 V / 2 A
10 V / 2.25 A
5 V / 2 A
9 V / 2 A
10 V / 2.25 A
5 V / 3 A
9 V / 2 A
12 V / 1.5 A
Quick charge technology-Qualcomm Quick Charge 4+Qualcomm Quick Charge 3.0
FeaturesFast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
 Vivo NEX Dual DisplayVivo NEX Snubia X