vivo NEX Dual Display vs Xolo A42

Compare recorded specifications, size and practical differences.

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • Display technology

    OLED versus LCD

    NEX Dual Display:
    OLED
    A42:
    LCD
  • Width

    A42: 11.8 mm narrower

    NEX Dual Display:
    75.3 mm
    A42:
    63.5 mm
  • Screen diagonal

    A42: 2.39 in smaller diagonal

    NEX Dual Display:
    6.39 in
    A42:
    4 in
  • Rear camera layout

    NEX Dual Display:
    Triple
    A42:
    Single
  • Depth

    NEX Dual Display: 2.1 mm thinner

    NEX Dual Display:
    8.1 mm
    A42:
    10.2 mm
  • Height

    A42: 32.7 mm shorter

    NEX Dual Display:
    157.2 mm
    A42:
    124.5 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

  1. 1. NEX Dual Display

    Height:
    157.2 mm +32.7 mm versus A42
    Width:
    75.3 mm +11.8 mm versus A42
    Depth:
    8.1 mm
    Weight:
    199 g
  2. 2. A42

    Height:
    124.5 mm
    Width:
    63.5 mm
    Depth:
    10.2 mm +2.1 mm versus NEX Dual Display
    Weight:
    Unknown

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

  1. 1. NEX Dual Display

    Screen diagonal:
    6.39 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.2 cm²
  2. 2. A42

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

NEX Dual Display has approximately 120.1% more rectangular screen area than A42.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for NEX Dual Display, A42, compared at the same storage capacity.
StorageNEX Dual DisplayA42
128 GB 10 GB RAM Unknown
A42: Original memory entry

4 GB · 512 MB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. NEX Dual Display

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

2. A42

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. NEX Dual Display

    3500 mAh

    +2100 mAh versus A42

  2. 2. A42

    1400 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. NEX Dual Display2. A42

Everyday essentials
Everyday essentials — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Dimensions (HxWxD)
  • 157.2 Х 75.3 Х 8.1 mm
  • 124.5 Х 63.5 Х 10.2 mm
Weight
  • 199 g
  • 0 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.39" inch
  • 4" inch
Screen resolution
  • 1080 x 2340 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 10 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 9.0 (Pie); Funtouch 4.5
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 100.2 cm2
  • 45.5 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 84.7%
  • 57.6%
PPI /points per inch/
  • 403 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Rear camera, main
  • 12 MP
  • Triple
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • 4-axis OIS
  • Dual Pixel PDAF -2 MP
  • depth sensor -TOF camera
  • f/1.3
  • 5 MP
Functions
  • LED flash
  • HDR
  • panorama
Unknown
Video
  • 2160p@30fps
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 12 MP
  • Triple
  • 1.3 MP
  • Single
Specifications
  • Uses main cameras
  • 1.3 MP
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Processor CPU
  • Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
  • Dual-core 1.3 GHz
Graphics processor GPU
  • Adreno 630
Unknown
Antutu 8 score *
  • 340355
Unknown
General specs
General specs — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Release date
  • 2018
  • December
  • 2014
  • July
Colors
  • Polar Blue
  • Yellow
  • Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 700 EUR
  • 80 EUR
Battery life Unknown
  • Stand by time- Up to 180 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 19(800)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (4CA) Cat16 1024/150 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • BDS
  • GNSS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.69 W/kg (head) 0.71 W/kg (body)
Music and Audio
Music and Audio — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Radio
  • No
  • FM radio
Others
  • Secondary display (on the back): -Super AMOLED
  • 5.49 inches
  • 1080 x 1920 pixels
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for NEX Dual Display, A42.
SpecificationNEX Dual DisplayA42
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 10V/2.25A 22.5W
  • Sensors Accelerometer
  • proximity