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Micromax A75 vs Oppo A31

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    A75: 44.6 g lighter

    A75:
    135.4 g
    A31:
    180 g
  • Width

    A75: 12 mm narrower

    A75:
    63.5 mm
    A31:
    75.5 mm
  • Screen diagonal

    A75: 2.75 in smaller diagonal

    A75:
    3.75 in
    A31:
    6.5 in
  • Rear camera layout

    A75:
    Single
    A31:
    Triple
  • Depth

    A31: 2.6 mm thinner

    A75:
    10.9 mm
    A31:
    8.3 mm
  • Height

    A75: 43.9 mm shorter

    A75:
    120 mm
    A31:
    163.9 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. A75

    Height:
    120 mm
    Width:
    63.5 mm
    Depth:
    10.9 mm +2.6 mm versus A31
  2. 2. A31

    Height:
    163.9 mm +43.9 mm versus A75
    Width:
    75.5 mm +12 mm versus A75
    Depth:
    8.3 mm

Weight

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

  1. 1. A75

    135.4 g

  2. 2. A31

    180 g

    +44.6 g versus A75

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. A75

    Screen diagonal:
    3.75 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    41.9 cm²
  2. 2. A31

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

A31 has approximately 143.6% more rectangular screen area than A75.

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 A75, A31, compared at the same storage capacity.
StorageA75A31
128 GB Unknown 4 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. A75

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated 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. A75

    1300 mAh

  2. 2. A31

    4230 mAh

    +2930 mAh versus A75

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. A752. A31

Everyday essentials
Everyday essentials — specifications for A75, A31.
SpecificationA75A31
Dimensions (HxWxD)
  • 120 Х 63.5 Х 10.9 mm
  • 163.9 Х 75.5 Х 8.3 mm
Weight
  • 135.4 g
  • 180 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.75" inch
  • 6.5" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128GB 4GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3 (Gingerbread)
  • Android 9.0 (Pie); ColorOS 6.1
Chipset
  • Mediatek MT6573 (65 nm)
  • Mediatek MT6765V/CB Helio P35 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A75, A31.
SpecificationA75A31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 41.9 cm2
  • 102.0 cm2
Screen format
  • 3:2 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 55.0%
  • 82.4%
PPI /points per inch/
  • 154 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for A75, A31.
SpecificationA75A31
Rear camera, main
  • 3.15 MP
  • Single
  • 12 MP
  • Triple
Camera specs
  • 3.15 MP
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for A75, A31.
SpecificationA75A31
Processor CPU
  • 650 MHz Cortex-A9
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR SGX531
  • PowerVR GE8320
Antutu 8 score * Unknown
  • 105221
General specs
General specs — specifications for A75, A31.
SpecificationA75A31
Release date
  • 2011
  • December
  • 2020
  • February 13
Colors
  • Black
  • Fantasy White
  • Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 180 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 5 h
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for A75, A31.
SpecificationA75A31
SIM card
  • Dual SIM (Mini-SIM)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
  • DLNA
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 3.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for A75, A31.
SpecificationA75A31
Radio
  • FM radio
  • FM radio
Others Unknown
  • 480 nits typ. brightness
Other features
Other features — specifications for A75, A31.
SpecificationA75A31
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/WMA/AAC player -MP4/H.263 player -Organizer -Photo/video editor -Document editor -Voice memo/dial/commands -Predictive text input
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass