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BLU Studio J5 vs Samsung Galaxy A31

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

      Studio J5:
      LCD
      Galaxy A31:
      OLED

    • Weight

      Studio J5: 55 g lighter

      Studio J5:
      130 g
      Galaxy A31:
      185 g

    • Screen diagonal

      Studio J5: 1.4 in smaller diagonal

      Studio J5:
      5 in
      Galaxy A31:
      6.4 in

    • Rear camera layout

      Studio J5:
      Single
      Galaxy A31:
      Quad

    • Depth

      Galaxy A31: 1 mm thinner

      Studio J5:
      9.6 mm
      Galaxy A31:
      8.6 mm

    • Height

      Studio J5: 16.5 mm shorter

      Studio J5:
      142.8 mm
      Galaxy A31:
      159.3 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. Studio J5

      Height:
      142.8 mm
      Width:
      73 mm
      Depth:
      9.6 mm +1 mm versus Galaxy A31

    2. 2. Galaxy A31

      Height:
      159.3 mm +16.5 mm versus Studio J5
      Width:
      73.1 mm
      Depth:
      8.6 mm

    Weight

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

    1. 1. Studio J5

      130 g

    2. 2. Galaxy A31

      185 g

      +55 g versus Studio J5

    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. Studio J5

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

    2. 2. Galaxy A31

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

    Galaxy A31 has approximately 43.5% more rectangular screen area than Studio J5.

    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 Studio J5, Galaxy A31, compared at the same storage capacity.
    StorageStudio J5Galaxy A31
    8 GB 1 GB RAM Not recorded
    64 GB Not recorded 4 GB RAM
    128 GB Not recorded 4 / 6 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. Studio J5

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 64 GB

    2. Galaxy A31

    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. Studio J5

      2300 mAh

    2. 2. Galaxy A31

      5000 mAh

      +2700 mAh versus Studio J5

    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. Studio J52. Galaxy A31

    Everyday essentials
    Everyday essentials — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Dimensions (HxWxD)
    • 142.8 Х 73 Х 9.6 mm
    • 159.3 Х 73.1 Х 8.6 mm
    Weight
    • 130 g
    • 185 g
    Technology
    • IPS LCD
    • Super AMOLED
    Screen size
    • 5" inch
    • 6.4" 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.
    • 8 GB
    • 1 GB RAM
    • 64GB 4GB RAM
    • 128GB 4GB RAM
    • 128GB 6GB RAM
    Memory card support
    • microSD
    • up to 64 GB
    • microSDXC (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 2300 mAh
    • Non-removable Li-Po
    • 5000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 6.0 (Marshmallow)
    • Android 10.0; One UI 2.0
    Chipset
    • Mediatek MT6735 (28 nm)
    		 Unknown
    NFC Unknown
    • Yes (market/region dependent)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 68.9 cm2
    • 98.9 cm2
    Screen format
    • 16:9 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 66.1%
    • 84.9%
    PPI /points per inch/
    • 294 PPI
    • 411 PPI
    Camera and Video
    Camera and Video — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Rear camera, main
    • 5 MP
    • Single
    • 48 MP
    • Quad
    Camera specs
    • 5 MP
    • AF
    • 48 MP
    • f/2.0
    • 26mm (wide)
    • 1/2.0"
    • 0.8µm
    • PDAF -8 MP
    • f/2.2
    • 13mm (ultrawide)
    • 1/4.0"
    • 1.12µm -5 MP
    • f/2.4
    • (macro) -5 MP
    • (depth)
    Functions
    • LED flash
    • LED flash
    • panorama
    • HDR
    Video
    • 1080p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 2 MP
    • Single
    • 20 MP
    • Single
    Specifications
    • 2 MP
    • 20 MP
    • f/2.2
    • (wide)
    Performance
    Performance — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Processor CPU
    • Quad-core 1.0 GHz Cortex-A53
    • Octa-core (2x2.0 GHz & 6x1.7 GHz)
    Graphics processor GPU
    • Mali-T720MP2
    		 Unknown
    General specs
    General specs — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Release date
    • 2016
    • November
    • 2020
    • March 24
    Colors
    • Grey
    • Gold
    • Rose Gold
    • Prism Crush Black
    • Prism Crush Blue
    • Prism Crush Red
    • Prism Crush White
    Battery life
    • Stand by time- Up to 725 h (2G) / Up to 625 h (3G) Talking time- Up to 26 h (2G) / Up to 16 h (3G)
    		 Unknown
    Communication and Connectivity
    Communication and Connectivity — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    SIM card
    • Dual SIM (Mini-SIM/ Micro-SIM)
    • 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 -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 2(1900)
    • 4(1700/2100)
    • 7(2600)
    • 12(700)
    • 17(700)
    • 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 (unspecified)
    Speed
    • HSPA 42.2/11.5 Mbps
    • LTE Cat4 150/50 Mbps
    • HSPA
    • LTE-A
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 b/g/n
    • Wi-Fi Direct
    • 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
    • LE
    • 5.0
    • A2DP
    • LE
    Harmful irradiation Unknown
    • SAR EU - 0.49 W/kg (head) 1.68 W/kg (body)
    Music and Audio
    Music and Audio — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Radio
    • FM radio
    		 Unknown
    Other features
    Other features — specifications for Studio J5, Galaxy A31.
    SpecificationStudio J5Galaxy A31
    Dop
    • Sensors Accelerometer
    • Sensors Fingerprint (under display
    • optical)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast charging 15W

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