Micromax A45 vs Samsung Galaxy M31

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

    A45: 71 g lighter

    A45:
    120 g
    Galaxy M31:
    191 g
  • Width

    A45: 12.1 mm narrower

    A45:
    63 mm
    Galaxy M31:
    75.1 mm
  • Screen diagonal

    A45: 2.9 in smaller diagonal

    A45:
    3.5 in
    Galaxy M31:
    6.4 in
  • Chipset

    A45:
    Mediatek MT6513
    Galaxy M31:
    Exynos 9611 (10nm)
  • Rear camera layout

    A45:
    Single
    Galaxy M31:
    Triple
  • Depth

    Galaxy M31: 4.1 mm thinner

    A45:
    13 mm
    Galaxy M31:
    8.9 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. A45

    Height:
    115 mm
    Width:
    63 mm
    Depth:
    13 mm +4.1 mm versus Galaxy M31
  2. 2. Galaxy M31

    Height:
    159.2 mm +44.2 mm versus A45
    Width:
    75.1 mm +12.1 mm versus A45
    Depth:
    8.9 mm

Weight

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

  1. 1. A45

    120 g

  2. 2. Galaxy M31

    191 g

    +71 g versus A45

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. A45

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. Galaxy M31

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

Galaxy M31 has approximately 175.6% more rectangular screen area than A45.

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 A45, Galaxy M31, compared at the same storage capacity.
StorageA45Galaxy M31
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
A45: Original memory entry

180 MB

Practical features

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

1. A45

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

2. Galaxy M31

NFC:
See details Yes (market/region dependent)
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. A45

    1300 mAh

  2. 2. Galaxy M31

    6000 mAh

    +4700 mAh versus A45

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. A452. Galaxy M31

Everyday essentials
Everyday essentials — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Dimensions (HxWxD)
  • 115 Х 63 Х 13 mm
  • 159.2 Х 75.1 Х 8.9 mm
Weight
  • 120 g
  • 191 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 3.5" inch
  • 6.4" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 180 MB
  • 64GB 6GB RAM
  • 128GB 6GB 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
  • 6000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3 (Gingerbread)
  • Android 10.0; One UI 2.0
Chipset
  • Mediatek MT6513
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 100.5 cm2
Screen format
  • 3:2 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 50.3%
  • 84.1%
PPI /points per inch/
  • 165 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Rear camera, main
  • 2 MP
  • Single
  • 64 MP
  • Triple
Camera specs
  • 2 MP
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • (depth)
Functions Unknown
  • HDR
Video
  • Yes
  • 2160p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 32 MP
  • Single
Specifications Unknown
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8''
  • 0.8µm
Performance

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

Performance — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Processor CPU
  • 650 MHz Cortex-A9
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR SGX531
  • Mali-G72 MP3
Antutu 8 score * Unknown
  • 194554
General specs
General specs — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Release date
  • 2012
  • June
  • 2020
  • February 25
Colors
  • White
  • Black
  • Ocean Blue
  • Space Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 167 h Talking time- Up to 4 h 30 min
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
SIM card
  • Dual SIM (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 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
Speed Unknown
  • HSPA
  • LTE-A
GPRS
  • Class 12
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.86 W/kg (head) 0.67 W/kg (body)
  • SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)
Music and Audio
Music and Audio — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Radio
  • Stereo FM radio
  • FM radio
  • RDS
  • recording
Other features
Other features — specifications for A45, Galaxy M31.
SpecificationA45Galaxy M31
Dop
  • MP3/WAV/AAC+ player -MP4/H.264/WMV player -Document viewer -Photo viewer -Organizer -Voice memo/dial -Predictive text input
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS