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Oppo A57 vs Samsung Galaxy A51

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

      A57:
      LCD
      Galaxy A51:
      OLED

    • Weight

      A57: 25 g lighter

      A57:
      147 g
      Galaxy A51:
      172 g

    • Screen diagonal

      A57: 1.3 in smaller diagonal

      A57:
      5.2 in
      Galaxy A51:
      6.5 in

    • Chipset

      A57:
      Qualcomm MSM8940 Snapdragon 435 (28 nm)
      Galaxy A51:
      Exynos 9611 (10nm)

    • Rear camera layout

      A57:
      Single
      Galaxy A51:
      Quad

    • Height

      A57: 9.4 mm shorter

      A57:
      149.1 mm
      Galaxy A51:
      158.5 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. A57

      Height:
      149.1 mm
      Width:
      72.9 mm
      Depth:
      7.7 mm

    2. 2. Galaxy A51

      Height:
      158.5 mm +9.4 mm versus A57
      Width:
      73.6 mm
      Depth:
      7.9 mm

    Weight

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

    1. 1. A57

      147 g

    2. 2. Galaxy A51

      172 g

      +25 g versus A57

    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. A57

      Screen diagonal:
      5.2 in
      Aspect ratio (height:width):
      16:9
      Approximate rectangular screen area:
      74.5 cm²

    2. 2. Galaxy A51

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

    Galaxy A51 has approximately 36.8% more rectangular screen area than A57.

    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 A57, Galaxy A51, compared at the same storage capacity.
    StorageA57Galaxy A51
    32 GB 3 GB RAM Not recorded
    64 GB Not recorded 4 GB RAM
    128 GB Not recorded 4 / 6 / 8 GB RAM Alternative RAM configurations

    Practical features

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

    1. A57

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

    2. Galaxy A51

    NFC:
    Yes
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 1 TB (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. A57

      2900 mAh

    2. 2. Galaxy A51

      4000 mAh

      +1100 mAh versus A57

    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. A572. Galaxy A51

    Everyday essentials
    Everyday essentials — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Dimensions (HxWxD)
    • 149.1 Х 72.9 Х 7.7 mm
    • 158.5 Х 73.6 Х 7.9 mm
    Weight
    • 147 g
    • 172 g
    Technology
    • IPS LCD
    • Super AMOLED
    Screen size
    • 5.2" inch
    • 6.5" inch
    Screen resolution
    • 720 x 1280 px
    • 1080 x 2400 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 32 GB
    • 3 GB RAM
    • 64GB 4GB RAM
    • 128GB 4GB RAM
    • 128GB 6GB RAM
    • 128GB 8GB RAM
    Memory card support
    • microSD
    • up to 256 GB
    • microSD
    • up to 1 TB (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 2900 mAh
    • Non-removable Li-Ion
    • 4000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 6 (Marshmallow); ColorOS 3
    • Android 10.0; One UI 2
    Chipset
    • Qualcomm MSM8940 Snapdragon 435 (28 nm)
    • Exynos 9611 (10nm)
    NFC Unknown
    • Yes
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 74.5 cm2
    • 102.0 cm2
    Screen format
    • 16:9 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 68.6%
    • 87.4%
    PPI /points per inch/
    • 282 PPI
    • 405 PPI
    Screen protection
    • Corning Gorilla Glass 4
    • Corning Gorilla Glass 3
    Camera and Video
    Camera and Video — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Rear camera, main
    • 13 MP
    • Single
    • 48 MP
    • Quad
    Camera specs
    • 13 MP
    • PDAF
    • f/2.2
    • 48 MP
    • f/2.0
    • 26mm (wide)
    • 1/2.0"
    • 0.8µm
    • PDAF -12 MP
    • f/2.2
    • 12mm (ultrawide) -5 MP
    • f/2.4
    • 25mm (macro)
    • 1/5.0"
    • 1.12µm -5 MP
    • 1.12µm
    • depth sensor
    Functions
    • LED flash
    • HDR
    • panorama
    • HDR
    Video
    • 1080p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 16 MP
    • Single
    • 32 MP
    • Single
    Specifications
    • 16 MP
    • f/2.0
    • 1.12µm
    • AF
    • 32 MP
    • f/2.2
    • 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 A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Processor CPU
    • Octa-core 1.4 GHz Cortex-A53
    • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
    Graphics processor GPU
    • Adreno 505
    • Mali-G72 MP3
    Antutu 7 score *
    • 46782
    • 155326
    GeekBench 4 Single Core *
    • 657
    		 Unknown
    GeekBench 4 Multi-Core *
    • 2764
    		 Unknown
    GeekBench 4 RenderScript *
    • 2302
    		 Unknown
    Antutu 8 score * Unknown
    • 186846
    GeekBench 5 Single Core * Unknown
    • 322
    GeekBench 5 Multi-Core * Unknown
    • 1212
    General specs
    General specs — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Release date
    • 2016
    • November
    • 2019
    • December
    Colors
    • Black
    • Gold
    • Rose Gold
    • Prism Crush Black
    • White
    • Blue
    • Pink
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 200 EUR
    • $280
    Battery life Unknown
    • Talking time- Up to 32 h (3G) Music play - Up to 87 h
    Body build
    • Front glass
    • aluminum body
    • Glass front (Gorilla Glass 3)
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    SIM card
    • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
    • dual stand-by)
    • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
    • dual stand-by)
    Network
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
    • 3(1800)
    • 5(850)
    • 7(2600)
    • 8(900)
    • 20(800)
    • 28(700)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500)
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE (unspecified)
    Speed
    • HSPA
    • LTE
    • 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
    • Yes
    • with A-GPS
    • GLONASS
    • GALILEO
    • BDS
    USB
    • microUSB 2.0
    • USB Host
    • 2.0
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    Bluetooth
    • 4.1
    • A2DP
    • 5.0
    • A2DP
    • LE
    Harmful irradiation Unknown
    • SAR - 0.80 W/kg (head) 0.67 W/kg (body) SAR EU - 0.37 W/kg (head) 1.59 W/kg (body)
    Music and Audio
    Music and Audio — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Radio
    • FM radio
    • FM radio
    Others Unknown
    • Active noise cancellation with dedicated mic
    Other features
    Other features — specifications for A57, Galaxy A51.
    SpecificationA57Galaxy A51
    Dop
    • Sensors Fingerprint (front-mounted)
    • accelerometer
    • proximity
    • compass - Also known as Oppo F3 Lite in Vietnam
    • Sensors Fingerprint (under display
    • optical)
    • accelerometer
    • gyro
    • proximity
    • compass - ANT+ - Fast battery charging 15W - Versions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia)

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