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Oppo A91 vs Xiaomi Mi 8 Explorer

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.

    • Weight

      A91: 5 g lighter

      A91:
      172 g
      Mi 8 Explorer:
      177 g

    • Width

      A91: 1.5 mm narrower

      A91:
      73.3 mm
      Mi 8 Explorer:
      74.8 mm

    • Chipset

      A91:
      Mediatek MT6771V Helio P70 (12nm)
      Mi 8 Explorer:
      Qualcomm SDM845 Snapdragon 845 (10 nm)

    • Rear camera layout

      A91:
      Quad
      Mi 8 Explorer:
      Dual

    • Height

      Mi 8 Explorer: 5.3 mm shorter

      A91:
      160.2 mm
      Mi 8 Explorer:
      154.9 mm

    • Release year

      A91:
      2019
      Mi 8 Explorer:
      2018

    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. A91

      Height:
      160.2 mm +5.3 mm versus Mi 8 Explorer
      Width:
      73.3 mm
      Depth:
      7.9 mm

    2. 2. Mi 8 Explorer

      Height:
      154.9 mm
      Width:
      74.8 mm +1.5 mm versus A91
      Depth:
      7.6 mm

    Weight

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

    1. 1. A91

      172 g

    2. 2. Mi 8 Explorer

      177 g

      +5 g versus A91

    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.

    At least two phones need compatible screen dimensions for a drawing.

    1. 1. A91

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

    2. 2. Mi 8 Explorer

      Mi 8 Explorer: Screen geometry unavailable or conflicting.

    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 A91, Mi 8 Explorer, compared at the same storage capacity.
    StorageA91Mi 8 Explorer
    128 GB Recorded for all phones 8 GB RAM 8 GB 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. A91

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

    2. Mi 8 Explorer

    NFC:
    Yes
    Headphone jack:
    No
    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. A91

      4025 mAh

      +1025 mAh versus Mi 8 Explorer

    2. 2. Mi 8 Explorer

      3000 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. A912. Mi 8 Explorer

    Everyday essentials
    Everyday essentials — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Dimensions (HxWxD)
    • 160.2 Х 73.3 Х 7.9 mm
    • 154.9 Х 74.8 Х 7.6 mm
    Weight
    • 172 g
    • 177 g
    Technology
    • AMOLED
    • Super AMOLED
    Screen size
    • 6.4" inch
    • 6.21" inch
    Screen resolution
    • 1080 x 2400 px
    • 1080 x 2248 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 128GB 8GB RAM
    • 128 GB
    • 8 GB RAM
    Memory card support
    • microSD
    • up to 256 GB (dedicated slot)
    • No
    Battery Capacity is not battery life. No endurance test is implied.
    • 4025 mAh
    • Non-removable Li-Po
    • 3000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 9.0 (Pie); ColorOS 6.1
    • Android 8.1 (Oreo)
    • upgradable to Android 9.0 (Pie); MIUI 10.1
    Chipset
    • Mediatek MT6771V Helio P70 (12nm)
    • Qualcomm SDM845 Snapdragon 845 (10 nm)
    NFC Unknown
    • Yes
    Headphone jack
    • Yes
    • No
    Display
    Display — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 100.4 cm2
    • 97.1 cm2
    Screen format
    • 20:9 (height:width)
    		 Unknown
    Screen to body ratio
    • 85.5%
    • 83.8%
    PPI /points per inch/
    • 408 PPI
    • 0 PPI
    Screen protection
    • Corning Gorilla Glass 5
    • Corning Gorilla Glass 5
    Camera and Video
    Camera and Video — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Rear camera, main
    • 48 MP
    • Quad
    • 12 MP
    • Dual
    Camera specs
    • 48 MP
    • f/1.8
    • 26mm (wide)
    • 1/2.0"
    • 0.8µm
    • PDAF -8 MP
    • f/2.2
    • 13mm (ultrawide)
    • 1/4.0"
    • 1.12µm -2 MP B/W
    • f/2.4
    • 1/5.0"
    • 1.75µm -2 MP
    • 1.75µm
    • depth sensor
    • 12 MP
    • f/1.8
    • 1/2.55''
    • 1.4µm
    • 4-axis OIS
    • dual pixel PDAF -12 MP
    • f/2.4
    • 1/3.4''
    • 1.0µm
    • AF
    • 2x optical zoom
    Functions
    • HDR
    • Dual-LED flash
    • HDR
    • panorama
    Video
    • 1080p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 16 MP
    • Single
    • 20 MP
    • Single
    Specifications
    • 16 MP
    • f/2.0
    • 26mm (wide)
    • 1/3.1''
    • 1.0µm
    • 20 MP
    • f/2.0
    • 0.9μm
    Performance

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

    Performance — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Processor CPU
    • Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
    • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
    Graphics processor GPU
    • Mali-G72 MP3
    • Adreno 630
    Antutu 7 score *
    • 135756
    		 Unknown
    General specs
    General specs — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Release date
    • 2019
    • December
    • 2018
    • May
    Colors
    • Dark Blue
    • Red
    • Blue
    • Black (transparent back)
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 260 EUR
    • 500 EUR
    Body build
    • Glass front (Gorilla Glass 5)
    • plastic back
    • plastic frame
    • Front/back glass
    • aluminum frame (7000 series)
    Communication and Connectivity
    Communication and Connectivity — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    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 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
    • 3(1800)
    • 4(1700/2100)
    • 5(850)
    • 8(900)
    • 34(2000)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500)
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & 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)
    • 20(800)
    • 34(2000)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500)
    Speed
    • HSPA 42.2/11.5 Mbps
    • LTE-A
    • HSPA 42.2/5.76 Mbps
    • LTE-A (4CA) Cat16 1024/150 Mbps
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 a/b/g/n/ac/ax
    • dual-band
    • Wi-Fi Direct
    • hotspot
    • Wi-Fi 802.11 a/b/g/n/ac
    • dual-band
    • Wi-Fi Direct
    • DLNA
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • GLONASS
    • BDS
    • Yes
    • with dual-band A-GPS
    • GLONASS
    • BDS
    • GALILEO
    • QZSS
    USB
    • 2.0
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    • Type-C 1.0 reversible connector
    Bluetooth
    • 4.2
    • A2DP
    • LE
    • 5.0
    • A2DP
    • LE
    • aptX HD
    Music and Audio
    Music and Audio — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Radio
    • FM radio
    • No
    Others
    • 430 nits typ. brightness
    • Active noise cancellation with dedicated mic
    • HDR10 -DCI-P3
    • Active noise cancellation with dedicated mic
    Other features
    Other features — specifications for A91, Mi 8 Explorer.
    SpecificationA91Mi 8 Explorer
    Dop
    • Sensors Fingerprint (under display
    • optical)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast charging 20W
    • 50% in 30 min -VOOC 3.0
    • Sensors Face ID
    • fingerprint (under display)
    • accelerometer
    • gyro
    • proximity
    • barometer
    • compass - Fast battery charging (Quick Charge 4.0+) - For China

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