Oppo Realme 3 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.

  • Display technology

    OLED versus LCD

    Realme 3:
    LCD
    Galaxy M31:
    OLED
  • Weight

    Realme 3: 16 g lighter

    Realme 3:
    175 g
    Galaxy M31:
    191 g
  • Chipset

    Realme 3:
    Mediatek MT6771 Helio P60 (12 nm) -Mediatek Helio P70 (12nm)
    Galaxy M31:
    Exynos 9611 (10nm)
  • Rear camera layout

    Realme 3:
    Single
    Galaxy M31:
    Triple
  • Depth

    Realme 3: 0.6 mm thinner

    Realme 3:
    8.3 mm
    Galaxy M31:
    8.9 mm
  • Height

    Realme 3: 3.1 mm shorter

    Realme 3:
    156.1 mm
    Galaxy M31:
    159.2 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. Realme 3

    Height:
    156.1 mm
    Width:
    75.6 mm
    Depth:
    8.3 mm
  2. 2. Galaxy M31

    Height:
    159.2 mm +3.1 mm versus Realme 3
    Width:
    75.1 mm
    Depth:
    8.9 mm +0.6 mm versus Realme 3

Weight

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

  1. 1. Realme 3

    175 g

  2. 2. Galaxy M31

    191 g

    +16 g versus Realme 3

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. Realme 3

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 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 4.1% more rectangular screen area than Realme 3.

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 Realme 3, Galaxy M31, compared at the same storage capacity.
StorageRealme 3Galaxy M31
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
Realme 3: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 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. Realme 3

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Realme 3

    4230 mAh

  2. 2. Galaxy M31

    6000 mAh

    +1770 mAh versus Realme 3

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. Realme 32. Galaxy M31

Everyday essentials
Everyday essentials — specifications for Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Dimensions (HxWxD)
  • 156.1 Х 75.6 Х 8.3 mm
  • 159.2 Х 75.1 Х 8.9 mm
Weight
  • 175 g
  • 191 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6.22" inch
  • 6.4" inch
Screen resolution
  • 720 x 1520 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
  • 64GB 6GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4230 mAh
  • Non-removable Li-Ion
  • 6000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); ColorOS 6
  • Android 10.0; One UI 2.0
Chipset
  • Mediatek MT6771 Helio P60 (12 nm) -Mediatek Helio P70 (12nm)
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 96.6 cm2
  • 100.5 cm2
Screen format
  • 19:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 81.8%
  • 84.1%
PPI /points per inch/
  • 270 PPI
  • 403 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Rear camera, main
  • 13 MP
  • Single
  • 64 MP
  • Triple
Camera specs
  • 13 MP
  • f/1.8
  • 1/3''
  • 1.12µm
  • PDAF -2 MP
  • depth sensor
  • 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
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 2160p@30fps
  • 1080p@30fps
Front camera, selfie
  • 13 MP
  • Single
  • 32 MP
  • Single
Specifications
  • 13 MP
  • f/2.0
  • 1/3''
  • 1.12µm
  • 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 Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) -Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU
  • Mali-G72 MP3
  • Mali-G72 MP3
Antutu 7 score *
  • 137126
Unknown
Antutu 8 score *
  • 148128
  • 194554
GeekBench 5 Single Core *
  • 273
Unknown
GeekBench 5 Multi-Core *
  • 1126
Unknown
General specs
General specs — specifications for Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Release date
  • 2019
  • March
  • 2020
  • February 25
Colors
  • Black
  • Dynamic Black
  • Radiant Blue
  • Ocean Blue
  • Space Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 9000 INR
  • 200 EUR
Body build
  • Front glass
  • plastic body
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
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 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500) LTE band 1(2100)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat12 600/50 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • 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 Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Radio
  • FM radio
  • FM radio
  • RDS
  • recording
Other features
Other features — specifications for Realme 3, Galaxy M31.
SpecificationRealme 3Galaxy M31
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 10W
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS