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BLU J2 vs Vodafone Smart 4G

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

      J2: 7 g lighter

      J2:
      146 g
      Smart 4G:
      153 g

    • Width

      Smart 4G: 6 mm narrower

      J2:
      73.1 mm
      Smart 4G:
      67.1 mm

    • Screen diagonal

      Smart 4G: 0.5 in smaller diagonal

      J2:
      5 in
      Smart 4G:
      4.5 in

    • Height

      Smart 4G: 10 mm shorter

      J2:
      144 mm
      Smart 4G:
      134 mm

    • Release year

      J2:
      2019
      Smart 4G:
      2014

    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. J2

      Height:
      144 mm +10 mm versus Smart 4G
      Width:
      73.1 mm +6 mm versus Smart 4G
      Depth:
      10.3 mm

    2. 2. Smart 4G

      Height:
      134 mm
      Width:
      67.1 mm
      Depth:
      10.3 mm

    Weight

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

    1. 1. J2

      146 g

    2. 2. Smart 4G

      153 g

      +7 g versus J2

    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. J2

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

    2. 2. Smart 4G

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

    J2 has approximately 23.5% more rectangular screen area than Smart 4G.

    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 J2, Smart 4G, compared at the same storage capacity.
    StorageJ2Smart 4G
    8 GB Not recorded 1 GB RAM
    32 GB 1 GB RAM Not recorded

    Practical features

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

    1. J2

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSDXC

    2. Smart 4G

    NFC:
    See details Yes (optional)
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 32 GB (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. J2

      2000 mAh

      +120 mAh versus Smart 4G

    2. 2. Smart 4G

      1880 mAh

    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. J22. Smart 4G

    Everyday essentials
    Everyday essentials — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Dimensions (HxWxD)
    • 144 Х 73.1 Х 10.3 mm
    • 134 Х 67.1 Х 10.3 mm
    Weight
    • 146 g
    • 153 g
    Technology
    • IPS LCD
    • IPS LCD
    Screen size
    • 5" inch
    • 4.5" inch
    Screen resolution
    • 480 x 854 px
    • 540 x 960 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 32GB 1GB RAM
    • 8 GB
    • 1 GB RAM
    Memory card support
    • microSDXC
    • microSD
    • up to 32 GB (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 2000 mAh
    • Li-Po
    • 1880 mAh
    • Removable Li-Ion
    Operating system OS
    • Android 8.1 Oreo (Go edition)
    • Android 4.2.2 (Jelly Bean)
    Chipset Unknown
    • Qualcomm MSM8930 Snapdragon 400 (28 nm)
    NFC Unknown
    • Yes (optional)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 68.9 cm2
    • 55.8 cm2
    Screen format
    • 16:9 (height:width)
    • 16:9 (height:width)
    Screen to body ratio
    • 65.4%
    • 62.1%
    PPI /points per inch/
    • 196 PPI
    • 245 PPI
    Camera and Video
    Camera and Video — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Rear camera, main
    • 5 MP
    • Single
    • 8 MP
    • Single
    Camera specs
    • 5 MP
    • 8 MP
    • AF
    Functions
    • LED flash
    • LED flash
    Video
    • 720p@30fps
    • Yes
    Front camera, selfie
    • 5 MP
    • Single
    • 1 MP
    • Single
    Specifications
    • 5 MP
    • 1 MP
    Performance

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

    Performance — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Processor CPU
    • Quad-core 1.3 GHz Cortex-A7
    • Dual-core 1.2 GHz Krait
    Graphics processor GPU
    • Mali-400
    • Adreno 305
    GeekBench 4 Single Core * Unknown
    • 415
    GeekBench 4 Multi-Core * Unknown
    • 747
    General specs
    General specs — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Release date
    • 2019
    • December
    • 2014
    • October
    Colors
    • Blue
    • Black
    • Brown
    • Black
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 50 EUR
    		 Unknown
    Communication and Connectivity
    Communication and Connectivity — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    SIM card
    • Dual SIM (Nano-SIM
    • dual stand-by)
    • Micro-SIM
    Network
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
    • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
    • 7(2600)
    • 20(800)
    Speed
    • HSPA 21.1/5.76 Mbps
    • HSPA
    • LTE
    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
    • dual-band
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • Yes
    • with A-GPS
    USB
    • microUSB 2.0
    • microUSB 2.0
    Bluetooth
    • 4.1
    • A2DP
    • LE
    • 4.0
    • A2DP
    Music and Audio
    Music and Audio — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Radio
    • FM radio
    • No
    Other features
    Other features — specifications for J2, Smart 4G.
    SpecificationJ2Smart 4G
    Dop
    • Sensors Accelerometer For USA
    • Sensors Accelerometer
    • proximity

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