The Nokia 8.1 comes with 4/6 GB of RAM and 64/128 GB of internal memory which can be expanded via microSD. The Nokia 8.1 boasts of the 12/13-megapixels dual rear camera and 20-megapixels front camera for selfies and video calling.
The Vivo NEX Dual Display comes with 10 GB of RAM and 128 GB of internal memory which can be expanded via microSD. The Vivo NEX Dual Display boasts of the 12/2-megapixels rear camera plus TOF 3D camera and no front camera but use main camera for selfies and video calling.
Vivo NEX Dual Display
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Nokia 8.1
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Brand and Model
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Brand and Model
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Brand
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Vivo
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Nokia
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Model
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NEX Dual Display
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8.1
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Model Alias
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NEX Dual Screen
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TA-1131
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V1821T
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V1821A
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SIM Card
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SIM Card
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SIM Card Type
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Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x
0.67 mm)
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Nano-SIM (4FF-fourth form factor,since 2012, 12.30 x 8.80 x 0.67
mm)
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Nano-SIM / microSD
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Number of SIM Cards
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2
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2
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Features
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Dual SIM stand-by
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Networks
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Networks
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Network
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GSM / LTE / UMTS / TD-SCDMA / CDMA
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GSM / LTE / UMTS
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Mobile Network Technology and Bandwidth
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Mobile Network Technology and Bandwidth
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Mobile Network Technologies
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UMTS (384 kbit/s)
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UMTS (384 kbit/s)
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EDGE
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EDGE
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GPRS
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GPRS
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HSPA+
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HSPA+
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LTE Cat 16 (150 Mbit/s, 1 Gbit/s)
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LTE Cat 6 (51.0 Mbit/s, 301.5 Gbit/s)
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EV-DO Rev. A (1.8 Mbit/s, 3.1 Mbit/s)
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TD-SCDMA
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TD-HSDPA
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Operating System
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Operating System
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Operating System (OS)
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Funtouch 4.5 OS (Android 9.0 Pie)
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Android 9.0 Pie
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System on Chip (SOC)
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System on Chip (SOC)
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SOC
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Qualcomm Snapdragon 845
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Qualcomm Snapdragon 710
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Process Technology
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10 nm
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10 nm
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CPU
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4x 2.8 GHz Kryo 385
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2x 2.2 GHz Kryo 360
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4x 1.8 GHz Kryo 385
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6x 1.7 GHz Kryo 360
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CPU Bits
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64 bits
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64 bits
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Instruction Set
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ARMv8-A
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ARMv8
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CPU Frequency
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2800 MHz
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2200 MHz
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CPU Cores
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8
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8
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GPU
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Qualcomm Adreno 630
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Qualcomm Adreno 616
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RAM Capacity
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4 GB
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10 GB
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6 GB
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RAM Type
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LPDDR4X
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LPDDR4X
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RAM Channels
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Double channel
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Double channel
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RAM Frequency
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1866 MHz
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1866 MHz
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Storage
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Storage
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Storage
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128 GB
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64 GB
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128 GB
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Memory Cards
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Memory Cards
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Types
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microSD
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microSD
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microSDHC
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microSDHC
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microSDXC
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microSDXC
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Display
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Display
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Type / Technology
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Super AMOLED
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IPS
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Diagonal Size
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6.39 in
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6.18 in
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162.31 mm
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156.97 mm
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16.23 cm
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15.7 cm
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Width
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2.68 in
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2.65 in
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68.02 mm
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67.2 mm
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6.8 cm
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6.72 cm
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Height
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5.8 in
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5.59 in
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147.37 mm
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141.86 mm
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14.74 cm
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14.19 cm
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Aspect Ratio
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2.167:1
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2.111:1
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Resolution
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1080 x 2340 pixels
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1080 x 2280 pixels
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Pixel Density
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403 ppi
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408 ppi
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158 ppcm
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160 ppcm
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Color Depth
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24 bits
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24 bits
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16777216 colors
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16777216 colors
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Display Area
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84.96 %
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81.55 %
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Other Features
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Capacitive
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Capacitive
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Multi-touch
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Multi-touch
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Scratch resistant
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Full Lamination Technology
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COF (Chip-On-Flex)
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1500:1 contrast ratio
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500 cd/m square
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96% NTSC
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HDR10
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Secondary Display
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Type / Technology
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Super AMOLED
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Diagonal Size
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5.49 in
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Resolution
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1080 x 1920 pixels
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2.5D curved glass screen
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Sensors
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Sensors
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Sensors
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Proximity
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Proximity
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Light
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Light
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Accelerometer
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Accelerometer
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Compass
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Compass
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Gyroscope
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Gyroscope
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Fingerprint
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Fingerprint
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Hall
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In-display fingerprint sensor
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Primary Camera
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Primary Camera
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Sensor type
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CMOS
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CMOS
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Aperture
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f/1.79
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f/1.8
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Flash Type
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Dual LED
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Dual LED
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Image Resolution
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4032 x 3024 pixels
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4032 x 3024 pixels
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12.19 MP
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12.19 MP
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Video resolution
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3840 x 2160 pixels
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3840 x 2160 pixels
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8.29 MP
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8.29 MP
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Video FPS
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30 fps
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30 fps
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Features
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Autofocus
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Autofocus
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Continuous shooting
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Continuous shooting
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Digital zoom
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Digital zoom
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Optical zoom
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Optical image stabilization
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Optical image stabilization
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Geotagging
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Geotagging
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Panorama
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Panorama
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HDR
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HDR
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Touch focus
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Touch focus
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Face detection
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Face detection
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White balance setting
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White balance setting
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ISO setting
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ISO setting
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Exposure compensation
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Exposure compensation
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Self-timer
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Self-timer
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Scene mode
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Scene mode
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Sensor size - ½.55”
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Sensor size – ½.55”
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Pixel size - 1.4 um
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Pixel size- 1.4 um
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Phase detection with Dual Pixel
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Phase detection with Dual Pixel
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Carl Zeiss lens
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High CRI LED flash
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Focal length (35 mm equivalent) – 25 mm
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Wide angle – 80 degree
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Secondary rear camera - 2 MP
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Secondary rear camera- 13 MP
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Aperture size - f/1.8 (#2)
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Aperture size- f/2.2 (#2)
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Pixel size - 2.9 um (#2)
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Carl Zeiss lens (#2)
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TOF (Time of Flight) 3D camera
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Aperture size - f/1.3 (#TOF)
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Face unlock
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Secondary Camera
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Secondary Camera
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Sensor Type
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No - uses main camera
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Aperture
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f/1.2
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Image Resolution
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5120 x 3840 pixels
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19.66 MP
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Video Resolution
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1920 x 1080 pixels
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2.07 MP
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Video FPS
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30 fps
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Pixel size – 1.8 um (4-in-1 pixel binning)
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Carl Zeiss lens
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Audio
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Audio
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Speaker
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Loudspeaker
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Loudspeaker
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Earpiece
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Earpiece
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Asahi Kasei AK4377A
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OZO Audio
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Radio
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Radio
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Radio
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No
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Yes
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Tracking / Positioning
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Tracking / Positioning
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Tracking / Positioning
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GPS
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GPS
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A-GPS
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A-GPS
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GLONASS
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GLONASS
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BeiDou
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BeiDou
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Wi-Fi
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Wi-Fi
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Wi-Fi
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802.11a (IEEE 802.11a-1999)
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802.11a (IEEE 802.11a-1999)
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802.11b (IEEE 802.11b-1999)
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802.11b (IEEE 802.11b-1999)
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802.11g (IEEE 802.11g-1999)
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802.11g (IEEE 802.11g-1999)
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802.11n (IEEE 802.11n-2003)
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802.11n (IEEE 802.11n-2003)
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802.11n 5GHz
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802.11n 5GHz
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802.11ac (IEEE 802.11ac)
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802.11ac (IEEE 802.11ac)
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Dual band
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Dual band
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Wi-Fi Hotspot
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Wi-Fi Hotspot
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Wi-Fi Direct
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Wi-Fi-Direct
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2x2 MiMO
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Bluetooth
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Bluetooth
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Version
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5.0
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5.0
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Features
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A2DP
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A2DP
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USB
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USB
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Version
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USB Type-C
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USB Type-C
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Features
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2.0
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2.0
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Charging
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Charging
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Mass Storage
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Mass Storage
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On-The-Go
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On-The-Go
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Headphone Jack
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Headphone Jack
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Headphone Jack
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No
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Yes
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Connectivity
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Connectivity
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Connectivity
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Computer sync
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Computer sync
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OTA sync
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OTA sync
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Tethering
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Tethering
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VoLTE
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VoLTE
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NFC
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VoWiFi
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Browser
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Browser
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Browser
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HTML
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HTML
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HTML5
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HTML5
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CSS 3
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CSS 3
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Audio File Formats / Codecs
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Audio File Formats / Codecs
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Audio File Formats / Codecs
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AAC
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AAC
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AAC+ / aaPlus / HE-AAC v1
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AMR / AMR-NB / GSM-AMR
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AMR / AMR-NB / GSM-AMR
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AMR-WB
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AMR-WB
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eAAC+ / aacPlus v2 / HE-AAC v2
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eAAC+ / aacPlus v2 / HE-AAC v2
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FLAC
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FLAC
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M4A
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MIDI
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MIDI
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MP3
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MP3
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OGG
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OGG
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WMA
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WMA
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WAV
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WAV
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Video File Formats / Codecs
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Video File Formats / Codecs
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Video File Formats / Codecs
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3GPP
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3GPP
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AVI
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AVI
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DivX
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Flash Video
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H.263
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H.263
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H.264 / MPEG-4 Part 10 / AVC video
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H.264 / MPEG-4 Part 10 / AVC Video
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H.265 / MPEG-H Part 2 / HEVC
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MKV
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MKV
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MP4
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MP4
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WebM
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WMV
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WMV
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Xvid
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Xvid
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Battery
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Battery
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Capacity
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3500 MAh
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3500 mAh
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Type
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Li-Polymer
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Li-Polymer
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Features
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Non-removable
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Non-removable
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Fast charging
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Fast charging
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Launch
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Launch
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Announced
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2018, December
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2018, December
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Status
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Exp. Release Dec. 2018
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Exp. Release Dec. 2018
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Price
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Price
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Price
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About 725 $
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About 450 $
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Design
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Design
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Colors
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Blue
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Black
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Blue
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Red
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Silver
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Copper
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Width
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75.3 mm
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75.76 mm
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7.53 cm
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7.58 cm
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0.25 ft
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0.25 ft
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2.96 in
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2.98 in
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Height
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157.19 mm
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154.8 mm
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15.72 cm
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15.48 cm
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0.52 ft
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0.51 ft
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6.19 in
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6.09 in
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Thickness
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8.09 mm
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7.97 mm
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0.81 cm
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0.8 cm
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0.03 ft
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0.03 ft
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0.32 in
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0.31 in
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Weight
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199 g
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180 g
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0.44 lbs
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0.4 lbs
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7.03 oz
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6.35 oz
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Volume
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95.76 cm3
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93.47 cm3
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5.82 in3
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5.68 in3
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Body Materials
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Aluminium alloy
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Aluminium alloy
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Glass
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Glass
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