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Archos Diamond vs Oppo A31

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

      Diamond:
      OLED
      A31:
      LCD

    • Weight

      Diamond: 14 g lighter

      Diamond:
      166 g
      A31:
      180 g

    • Width

      Diamond: 1.4 mm narrower

      Diamond:
      74.1 mm
      A31:
      75.5 mm

    • Height

      Diamond: 5.2 mm shorter

      Diamond:
      158.7 mm
      A31:
      163.9 mm

    • Release year

      Diamond:
      2019
      A31:
      2020

    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. Diamond

      Height:
      158.7 mm
      Width:
      74.1 mm
      Depth:
      8.6 mm

    2. 2. A31

      Height:
      163.9 mm +5.2 mm versus Diamond
      Width:
      75.5 mm +1.4 mm versus Diamond
      Depth:
      8.3 mm

    Weight

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

    1. 1. Diamond

      166 g

    2. 2. A31

      180 g

      +14 g versus Diamond

    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. Diamond

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

    2. 2. A31

      Screen diagonal:
      6.5 in
      Aspect ratio (height:width):
      20:9
      Approximate rectangular screen area:
      102 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 Diamond, A31, compared at the same storage capacity.
    StorageDiamondA31
    128 GB Unknown 4 GB RAM
    Diamond: Original memory entry

    up to 128 GB (uses shared SIM slot) · 512GB 4GB

    Practical features

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

    1. Diamond

    NFC:
    Yes
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 1 TB (uses shared SIM slot)

    2. A31

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

    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. Diamond

      3400 mAh

    2. 2. A31

      4230 mAh

      +830 mAh versus Diamond

    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. Diamond2. A31

    Everyday essentials
    Everyday essentials — specifications for Diamond, A31.
    SpecificationDiamondA31
    Dimensions (HxWxD)
    • 158.7 Х 74.1 Х 8.6 mm
    • 163.9 Х 75.5 Х 8.3 mm
    Weight
    • 166 g
    • 180 g
    Technology
    • Super AMOLED
    • IPS LCD
    Screen size
    • 6.39" inch
    • 6.5" inch
    Screen resolution
    • 1080 x 2340 px
    • 720 x 1600 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • up to 128 GB (uses shared SIM slot)
    • 512GB 4GB
    • 128GB 4GB RAM
    Memory card support
    • microSD
    • up to 1 TB (uses shared SIM slot)
    • microSDXC (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 3400 mAh
    • Non-removable Li-Po
    • 4230 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 9.0 (Pie)
    • Android 9.0 (Pie); ColorOS 6.1
    Chipset
    • Mediatek Helio P70 (12nm)
    • Mediatek MT6765V/CB Helio P35 (12nm)
    NFC
    • Yes
    		 Unknown
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for Diamond, A31.
    SpecificationDiamondA31
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 100.2 cm2
    • 102.0 cm2
    Screen format
    • 19.5:9 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 85.2%
    • 82.4%
    PPI /points per inch/
    • 403 PPI
    • 270 PPI
    Camera and Video
    Camera and Video — specifications for Diamond, A31.
    SpecificationDiamondA31
    Rear camera, main
    • 16 MP
    • Dual-LED flash
    • 12 MP
    • Triple
    Camera specs
    • 16 MP
    • f/1.8
    • 1/2.8''
    • 1.12µm
    • PDAF -5 MP
    • f/2.2
    • (ultrawide/depth sensor)
    • 12 MP
    • f/1.8
    • (wide)
    • PDAF -2 MP
    • f/2.4
    • 27mm (macro)
    • 1/5.0''
    • 1.75µm -2 MP
    • (depth)
    Functions
    • HDR
    • HDR
    Video
    • 1080p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 8 MP
    • Single
    • 8 MP
    • Single
    Specifications
    • Motorized pop-up 8 MP
    • f/2.0
    • 1/4''
    • 1.12µm
    • 8 MP
    • f/2.0
    Performance

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

    Performance — specifications for Diamond, A31.
    SpecificationDiamondA31
    Processor CPU
    • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
    • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
    Graphics processor GPU
    • Mali-G72 MP3
    • PowerVR GE8320
    Antutu 7 score *
    • 156123
    		 Unknown
    Antutu 8 score * Unknown
    • 105221
    General specs
    General specs — specifications for Diamond, A31.
    SpecificationDiamondA31
    Release date
    • 2019
    • February
    • 2020
    • February 13
    Colors
    • Dark Blue
    • Fantasy White
    • Mystery Black
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 300 EUR
    • 180 EUR
    Body build Unknown
    • Glass front
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for Diamond, A31.
    SpecificationDiamondA31
    SIM card
    • Hybrid 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 band 1(2100)
    • 3(1800)
    • 7(2600)
    • 20(800)
    • 28(700) - Taiwan LTE 800 / 1800 / 2100 / 2600 - EU
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
    Speed
    • HSPA 42.2/5.76 Mbps
    • LTE-A (2CA) Cat6 300/50 Mbps
    • HSPA 42.2/5.76 Mbps
    • LTE-A
    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
    • dual-band
    • Wi-Fi Direct
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • GLONASS
    • BDS
    • Yes
    • with A-GPS
    • BDS
    USB
    • microUSB 2.0
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    • microUSB 2.0
    • USB On-The-Go
    Bluetooth
    • Android 4.4.2 (KitKat)
    • A2DP
    • Super AMOLED
    • 5.0
    • A2DP
    • LE
    Music and Audio
    Music and Audio — specifications for Diamond, A31.
    SpecificationDiamondA31
    Radio
    • panorama
    • FM radio
    Others
    • Active noise cancellation with dedicated mic
    • 480 nits typ. brightness
    Other features
    Other features — specifications for Diamond, A31.
    SpecificationDiamondA31
    Dop
    • Sensors Fingerprint (under display
    • optical) - market dependant
    • Sensors Accelerometer
    • gyro
    • proximity
    • compass - Fast battery charging 18W -Wireless charging - For Europe
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • proximity
    • compass

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