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  2. BLU J4 vs Xolo Prime

BLU J4 vs Xolo Prime

Compare recorded specifications, size and practical differences.

BLU J4

BLU J4

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    Xolo Prime

    Xolo Prime

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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.

        • WidthPrime: 4.3 mm narrowerPrime: 68 mm · J4: 72.3 mm
        • Screen diagonalPrime: 1 in smaller diagonalPrime: 4.5 in · J4: 5.5 in
        • DepthPrime: 0.5 mm thinnerPrime: 9.5 mm · J4: 10 mm
        • HeightPrime: 16 mm shorterPrime: 135 mm · J4: 151 mm
        • Release year2019 / 2015J4: 2019 · Prime: 2015

        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.

        Front
        J4: 151 × 72.3 mm 1 Prime: 135 × 68 mm 2
        Side
        J4: 151 × 10 mm 1 Prime: 135 × 9.5 mm 2
        1. 1. J4
          Height
          151 mm
          Width
          72.3 mm
          Depth
          10 mm
          Weight
          158 g
        2. 2. Prime
          Height
          135 mm
          Width
          68 mm
          Depth
          9.5 mm
          Weight
          Unknown

        Specifications

        Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

        Everyday essentials
        Everyday essentials
        SpecificationJ4Prime
        Dimensions (HxWxD)
        • 151 Х 72.3 Х 10 mm
        • 135 Х 68 Х 9.5 mm
        Weight
        • 158 g
        • 0 g
        Technology
        • IPS LCD
        • IPS LCD
        Screen size
        • 5.5" inch
        • 4.5" inch
        Screen resolution
        • 720 x 1440 px
        • 480 x 854 px
        Internal memoryRecorded 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
        BatteryCapacity is not battery life. No endurance test is implied.
        • 2200 mAh
        • Removable Li-Po
        • 1800 mAh
        • Removable Li-Ion
        Operating system OS
        • Android 8.1 Oreo (Go edition)
        • Android 5.0 (Lollipop)
        Chipset Unknown
        • Mediatek MT6582M (28 nm)
        Headphone jack
        • Yes
        • Yes
        Display
        Display
        SpecificationJ4Prime
        Touchscreen
        • capacitive touchscreen
        • capacitive touchscreen
        Display colors
        • 16M
        • 16M
        Screen area
        • 78.1 cm2
        • 55.8 cm2
        Screen format
        • 18:9 (height:width)
        • 16:9 (height:width)
        Screen to body ratio
        • 71.5%
        • 60.8%
        PPI /points per inch/
        • 293 PPI
        • 218 PPI
        Camera and Video
        Camera and Video
        SpecificationJ4Prime
        Rear camera, main
        • 8 MP
        • Single
        • 5 MP
        • Single
        Camera specs
        • 8 MP
        • AF
        • 5 MP
        • AF
        Functions
        • LED flash
        • LED flash
        • panorama
        • HDR
        Video
        • 720p@30fps
        • 720p
        Front camera, selfie
        • 8 MP
        • Single
        • 0.3 MP
        • Single
        Specifications
        • 8 MP
        • VGA
        Performance
        Performance
        SpecificationJ4Prime
        Processor CPU
        • Quad-core 1.3 GHz Cortex-A7
        • Quad-core 1.3 GHz Cortex-A7
        Graphics processor GPU
        • Mali-400
        • Mali-400MP2
        General specs
        General specs
        SpecificationJ4Prime
        Release date
        • 2019
        • October
        • 2015
        • May
        Colors
        • Blue
        • Black
        • Brown
        • Black
        • Blue
        • Red
        Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
        • 70 EUR
        • 80 EUR
        Battery life Unknown
        • Stand by time- Up to 500 h (2G) / Up to 400 h (3G) Talking time- Up to 21 h (2G) / Up to 10 h (3G)
        Communication and Connectivity
        Communication and Connectivity
        SpecificationJ4Prime
        SIM card
        • Dual SIM (Nano-SIM
        • dual stand-by)
        • Dual SIM
        Network
        • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
        • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
        Speed
        • HSPA 21.1/5.76 Mbps
        • HSPA 21.1/5.76 Mbps
        GPRS
        • Yes
        • Yes
        Edge
        • Yes
        • Yes
        Wi-Fi
        • Wi-Fi 802.11 b/g/n
        • Wi-Fi Direct
        • hotspot
        • Wi-Fi 802.11 b/g/n
        • 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
        Harmful irradiation Unknown
        • SAR EU - 0.89 W/kg (head) 0.71 W/kg (body)
        Music and Audio
        Music and Audio
        SpecificationJ4Prime
        Radio
        • FM radio
        • FM radio
        Other features
        Other features
        SpecificationJ4Prime
        Dop
        • Sensors Accelerometer For USA
        • Sensors Accelerometer
        • proximity - For India