Mitac MIO 8390 vs Oppo A91

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

    MIO 8390: 47 g lighter

    MIO 8390:
    125 g
    A91:
    172 g
  • Width

    MIO 8390: 22.3 mm narrower

    MIO 8390:
    51 mm
    A91:
    73.3 mm
  • Screen diagonal

    MIO 8390: 4.2 in smaller diagonal

    MIO 8390:
    2.2 in
    A91:
    6.4 in
  • Rear camera layout

    MIO 8390:
    Single
    A91:
    Quad
  • Depth

    A91: 16.1 mm thinner

    MIO 8390:
    24 mm
    A91:
    7.9 mm
  • Height

    MIO 8390: 61.2 mm shorter

    MIO 8390:
    99 mm
    A91:
    160.2 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. MIO 8390

    Height:
    99 mm
    Width:
    51 mm
    Depth:
    24 mm +16.1 mm versus A91
  2. 2. A91

    Height:
    160.2 mm +61.2 mm versus MIO 8390
    Width:
    73.3 mm +22.3 mm versus MIO 8390
    Depth:
    7.9 mm

Weight

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

  1. 1. MIO 8390

    125 g

  2. 2. A91

    172 g

    +47 g versus MIO 8390

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. MIO 8390

    MIO 8390: Screen geometry unavailable or conflicting.

  2. 2. A91

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    98.9 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 MIO 8390, A91, compared at the same storage capacity.
StorageMIO 8390A91
128 GB Unknown 8 GB RAM
MIO 8390: Original memory entry

16 MB RAM · 32 MB ROM

Practical features

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

1. MIO 8390

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details MMC/SD

2. A91

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (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. MIO 8390

    1050 mAh

  2. 2. A91

    4025 mAh

    +2975 mAh versus MIO 8390

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. MIO 83902. A91

Everyday essentials
Everyday essentials — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Dimensions (HxWxD)
  • 99 Х 51 Х 24 mm
  • 160.2 Х 73.3 Х 7.9 mm
Weight
  • 125 g
  • 172 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.2" inch
  • 6.4" inch
Screen resolution
  • 176 x 220 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 MB RAM
  • 32 MB ROM
  • 128GB 8GB RAM
Memory card support
  • MMC/SD
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Po
  • 4025 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Smartphone 2003
  • Android 9.0 (Pie); ColorOS 6.1
Chipset Unknown
  • Mediatek MT6771V Helio P70 (12nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Touchscreen Unknown
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 15.2 cm2
  • 100.4 cm2
Screen format Unknown
  • 20:9 (height:width)
Screen to body ratio
  • 30.2%
  • 85.5%
PPI /points per inch/
  • 0 PPI
  • 408 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Rear camera, main
  • 0.3 MP
  • Single
  • 48 MP
  • Quad
Camera specs Unknown
  • 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
Functions Unknown
  • HDR
Video
  • No
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 16 MP
  • Single
Specifications Unknown
  • 16 MP
  • f/2.0
  • 26mm (wide)
  • 1/3.1''
  • 1.0µm
Performance

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

Performance — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Processor CPU
  • Intel PXA262 200 MHz
  • Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G72 MP3
Antutu 7 score * Unknown
  • 135756
General specs
General specs — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Release date
  • 2003
  • Q3
  • 2019
  • December
Colors
  • Dazzling silver
  • opulent red
  • Dark Blue
  • Red
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 260 EUR
Battery life
  • Stand by time- Up to 100 h Talking time- Up to 3 h
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • 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)
Speed Unknown
  • HSPA 42.2/11.5 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 a/b/g/n/ac/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB Unknown
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • No
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Radio
  • No
  • FM radio
Others
  • Second LCD display (48 x 64 pixels)
  • 430 nits typ. brightness
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for MIO 8390, A91.
SpecificationMIO 8390A91
Dop
  • Infrared port - MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Predictive text input -Sync ML -MP4 encoder/decoder -Voice memo
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 20W
  • 50% in 30 min -VOOC 3.0