vivo U3 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.

  • Width

    A42: 13 mm narrower

    U3:
    76.5 mm
    A42:
    63.5 mm
  • Screen diagonal

    A42: 2.53 in smaller diagonal

    U3:
    6.53 in
    A42:
    4 in
  • Rear camera layout

    U3:
    Triple
    A42:
    Single
  • Depth

    U3: 1.3 mm thinner

    U3:
    8.9 mm
    A42:
    10.2 mm
  • Height

    A42: 37.7 mm shorter

    U3:
    162.2 mm
    A42:
    124.5 mm
  • Release year

    U3:
    2019
    A42:
    2014

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. U3

    Height:
    162.2 mm +37.7 mm versus A42
    Width:
    76.5 mm +13 mm versus A42
    Depth:
    8.9 mm
    Weight:
    193 g
  2. 2. A42

    Height:
    124.5 mm
    Width:
    63.5 mm
    Depth:
    10.2 mm +1.3 mm versus U3
    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. U3

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

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

U3 has approximately 129.8% 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 U3, A42, compared at the same storage capacity.
StorageU3A42
64 GB 4 / 6 GB RAM Alternative RAM configurations 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. U3

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

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. U3

    5000 mAh

    +3600 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. U32. A42

Everyday essentials
Everyday essentials — specifications for U3, A42.
SpecificationU3A42
Dimensions (HxWxD)
  • 162.2 Х 76.5 Х 8.9 mm
  • 124.5 Х 63.5 Х 10.2 mm
Weight
  • 193 g
  • 0 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.53" 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.
  • 64GB 4GB RAM
  • 64GB 6GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Non-removable Li-Po
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 9.0 (Pie); Funtouch 9.0
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Qualcomm SDM675 Snapdragon 675 (11 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for U3, A42.
SpecificationU3A42
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 104.7 cm2
  • 45.5 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 84.4%
  • 57.6%
PPI /points per inch/
  • 395 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for U3, A42.
SpecificationU3A42
Rear camera, main
  • 16 MP
  • Triple
  • 5 MP
  • Single
Camera specs
  • 16 MP
  • f/1.8
  • (wide)
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide) -2 MP
  • f/2.4
  • macro camera
  • 5 MP
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 26mm (wide)
  • 1/3.1"
  • 1.0µm
  • 1.3 MP
Performance

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

Performance — specifications for U3, A42.
SpecificationU3A42
Processor CPU
  • Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
  • Dual-core 1.3 GHz
Graphics processor GPU
  • Adreno 612
Unknown
Antutu 8 score *
  • 212000
Unknown
General specs
General specs — specifications for U3, A42.
SpecificationU3A42
Release date
  • 2019
  • October
  • 2014
  • July
Colors
  • Black
  • Blue
  • Green
  • Yellow
  • Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 USD
  • 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 U3, A42.
SpecificationU3A42
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 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 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
  • 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
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX
  • 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 U3, A42.
SpecificationU3A42
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for U3, A42.
SpecificationU3A42
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 18W
  • Sensors Accelerometer
  • proximity