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Oppo Realme 3i 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 3i:
      LCD
      Galaxy M31:
      OLED

    • Weight

      Realme 3i: 16 g lighter

      Realme 3i:
      175 g
      Galaxy M31:
      191 g

    • Screen diagonal

      Realme 3i: 0.2 in smaller diagonal

      Realme 3i:
      6.2 in
      Galaxy M31:
      6.4 in

    • Chipset

      Realme 3i:
      Mediatek MT6771 Helio P60 (12 nm)
      Galaxy M31:
      Exynos 9611 (10nm)

    • Rear camera layout

      Realme 3i:
      Dual
      Galaxy M31:
      Triple

    • Depth

      Realme 3i: 0.6 mm thinner

      Realme 3i:
      8.3 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. Realme 3i

      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 3i
      Width:
      75.1 mm
      Depth:
      8.9 mm +0.6 mm versus Realme 3i

    Weight

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

    1. 1. Realme 3i

      175 g

    2. 2. Galaxy M31

      191 g

      +16 g versus Realme 3i

    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 3i

      Screen diagonal:
      6.2 in
      Aspect ratio (height:width):
      19:9
      Approximate rectangular screen area:
      95.9 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 4.8% more rectangular screen area than Realme 3i.

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

    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 3i

      4230 mAh

    2. 2. Galaxy M31

      6000 mAh

      +1770 mAh versus Realme 3i

    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 3i2. Galaxy M31

    Everyday essentials
    Everyday essentials — specifications for Realme 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy 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
    • 6.2" 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-Po
    • 6000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 9.0 (Pie)
    • planned upgrade to Android 10.0
    • Android 10.0; One UI 2.0
    Chipset
    • Mediatek MT6771 Helio P60 (12 nm)
    • Exynos 9611 (10nm)
    NFC Unknown
    • Yes (market/region dependent)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for Realme 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy M31
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 95.9 cm2
    • 100.5 cm2
    Screen format
    • 19:9 (height:width)
    • 19.5:9 (height:width)
    Screen to body ratio
    • 81.3%
    • 84.1%
    PPI /points per inch/
    • 271 PPI
    • 403 PPI
    Screen protection
    • Corning Gorilla Glass (unspecified)
    • Corning Gorilla Glass 3
    Camera and Video
    Camera and Video — specifications for Realme 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy M31
    Rear camera, main
    • 13 MP
    • Dual
    • 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 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy M31
    Processor CPU
    • Octa-core (4x2.0 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 8 score * Unknown
    • 194554
    General specs
    General specs — specifications for Realme 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy M31
    Release date
    • 2019
    • July
    • 2020
    • February 25
    Colors
    • Diamond Blue
    • Diamond Red
    • Diamond black
    • Ocean Blue
    • Space Black
    • Red
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 8000 INR
    • 200 EUR
    Body build Unknown
    • Glass front (Gorilla Glass 3)
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for Realme 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy 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)
    • 8(900)
    • 38(2600)
    • 40(2300)
    • 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 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy M31
    Radio
    • FM radio
    • FM radio
    • RDS
    • recording
    Other features
    Other features — specifications for Realme 3i, Galaxy M31.
    SpecificationRealme 3iGalaxy M31
    Dop
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • proximity
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast battery charging 15W - Versions: SM-M315F/DS

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