Oppo A31 vs vivo iQOO 3 5G

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

    A31:
    LCD
    iQOO 3 5G:
    OLED
  • Weight

    A31: 34.5 g lighter

    A31:
    180 g
    iQOO 3 5G:
    214.5 g
  • Rear camera layout

    A31:
    Triple
    iQOO 3 5G:
    Quad
  • Depth

    A31: 0.9 mm thinner

    A31:
    8.3 mm
    iQOO 3 5G:
    9.2 mm
  • Height

    iQOO 3 5G: 5.4 mm shorter

    A31:
    163.9 mm
    iQOO 3 5G:
    158.5 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. A31

    Height:
    163.9 mm +5.4 mm versus iQOO 3 5G
    Width:
    75.5 mm
    Depth:
    8.3 mm
  2. 2. iQOO 3 5G

    Height:
    158.5 mm
    Width:
    74.9 mm
    Depth:
    9.2 mm +0.9 mm versus A31

Weight

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

  1. 1. A31

    180 g

  2. 2. iQOO 3 5G

    214.5 g

    +34.5 g versus A31

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. A31

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²
  2. 2. iQOO 3 5G

    Screen diagonal:
    6.44 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    100.1 cm²

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 A31, iQOO 3 5G, compared at the same storage capacity.
StorageA31iQOO 3 5G
128 GB Recorded for all phones 4 GB RAM 6 / 8 / 12 GB RAM Alternative RAM configurations
256 GB Not recorded 8 / 12 GB RAM Alternative RAM configurations

Practical features

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

1. A31

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. iQOO 3 5G

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

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. A31

    4230 mAh

  2. 2. iQOO 3 5G

    4400 mAh

    +170 mAh versus A31

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. A312. iQOO 3 5G

Everyday essentials
Everyday essentials — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Dimensions (HxWxD)
  • 163.9 Х 75.5 Х 8.3 mm
  • 158.5 Х 74.9 Х 9.2 mm
Weight
  • 180 g
  • 214.5 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6.5" inch
  • 6.44" inch
Screen resolution
  • 720 x 1600 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 4GB RAM
  • 128GB 6GB RAM
  • 128GB 8GB RAM
  • 128GB 12GB RAM
  • 256GB 8GB RAM
  • 256GB 12GB RAM
Memory card support
  • microSDXC (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 4230 mAh
  • Non-removable Li-Po
  • 4400 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); ColorOS 6.1
  • Android 10.0; iQOO UI 1.0
Chipset
  • Mediatek MT6765V/CB Helio P35 (12nm)
  • Qualcomm SM8250 Snapdragon 865 (7 nm+)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 102.0 cm2
  • 100.1 cm2
Screen format
  • 20:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 82.4%
  • 84.3%
PPI /points per inch/
  • 270 PPI
  • 409 PPI
Screen protection Unknown
  • Corning Gorilla Glass 6
Camera and Video
Camera and Video — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Rear camera, main
  • 12 MP
  • Triple
  • 48 MP
  • Quad
Camera specs
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
  • 48 MP
  • f/1.8
  • (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -13 MP
  • f/2.5
  • 50mm (telephoto)
  • PDAF
  • 2x optical zoom -13 MP
  • f/2.2
  • 16mm (ultrawide)
  • AF -2 MP
  • f/2.4
  • (depth)
Functions
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 16 MP
  • f/2.5
  • (wide)
Performance

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

Performance — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
  • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 650
Antutu 8 score *
  • 105221
  • 597898
General specs
General specs — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Release date
  • 2020
  • February 13
  • 2020
  • February 25
Colors
  • Fantasy White
  • Mystery Black
  • Volcano Orange
  • Tornado Black
  • Quantum Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 180 EUR
  • 480 EUR
Body build
  • Glass front
  • plastic back
  • plastic frame
  • Glass front (Gorilla Glass 6)
  • glass back (Gorilla Glass 6)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 18(800)
  • 19(800)
  • 20(800)
  • 25(1900)
  • 26(850)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) -5G - 5G band 1(2100)
  • 41(2500)
  • 77(3700)
  • 78(3500)
  • 79(4700); SA/NSA
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • 5G (3.3 Gbps DL)
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 a/b/g/n/ac/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
USB
  • microUSB 2.0
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 5.1
  • A2DP
  • LE
  • aptX HD
Harmful irradiation Unknown
  • SAR - 1.19 W/kg (head) 0.59 W/kg (body)
Music and Audio
Music and Audio — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Radio
  • FM radio
  • No
Others
  • 480 nits typ. brightness
  • HDR10+ -180Hz touch-sensing
  • 32-bit/192kHz audio
Other features
Other features — specifications for A31, iQOO 3 5G.
SpecificationA31iQOO 3 5G
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 55W
  • 50% in 15 min -Super Flash Charge 2.0 - Versions: V1955A (China); I1927 (India)