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  2. BLU J4 vs O2 XDA Star

BLU J4 vs O2 XDA Star

Compare recorded specifications, size and practical differences.

BLU J4

BLU J4

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    O2 XDA Star

    O2 XDA Star

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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.

        • WeightXDA Star: 38 g lighterXDA Star: 120 g · J4: 158 g
        • WidthXDA Star: 17.3 mm narrowerXDA Star: 55 mm · J4: 72.3 mm
        • Screen diagonalXDA Star: 2.9 in smaller diagonalXDA Star: 2.6 in · J4: 5.5 in
        • DepthJ4: 5.8 mm thinnerJ4: 10 mm · XDA Star: 15.8 mm
        • HeightXDA Star: 44 mm shorterXDA Star: 107 mm · J4: 151 mm
        • Release year2019 / 2007J4: 2019 · XDA Star: 2007

        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 XDA Star: 107 × 55 mm 2
        Side
        J4: 151 × 10 mm 1 XDA Star: 107 × 15.8 mm 2
        1. 1. J4
          Height
          151 mm+44 mm versus XDA Star
          Width
          72.3 mm+17.3 mm versus XDA Star
          Depth
          10 mm
          Weight
          158 g
        2. 2. XDA Star
          Height
          107 mm
          Width
          55 mm
          Depth
          15.8 mm+5.8 mm versus J4
          Weight
          120 g
        Weight

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

        1. 1. J4158 g

          +38 g versus XDA Star

        2. 2. XDA Star120 g

        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.

        Screen size
        J4: 5.5 in, 18:9, About 78.1 cm² rectangular area 1 XDA Star: 2.6 in, 4:3, About 20.9 cm² rectangular area 2
        1. 1. J4 5.5 in · 18:9 About 78.1 cm² rectangular area
        2. 2. XDA Star 2.6 in · 4:3 About 20.9 cm² rectangular area

        J4 has approximately 272.9% more rectangular screen area than XDA Star.

        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 by storage capacity and phone
        StorageJ4XDA Star
        32 GB 1 GB RAM Unknown
        XDA Star: Original memory entry

        96 MB RAM · 128 MB ROM

        Practical features

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

        1. J4

        NFC
        Unknown
        Headphone jack
        Yes
        Memory card support
        See details microSDXC

        2. XDA Star

        NFC
        Unknown
        Headphone jack
        No
        Memory card support
        See details microSD

        Battery capacity

        Capacity is not battery life. No endurance test is implied.

        Recorded capacity

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

        1. 1. J42200 mAh

          +1080 mAh versus XDA Star

        2. 2. XDA Star1120 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. J42. XDA Star

        Everyday essentials
        Everyday essentials
        SpecificationJ4XDA Star
        Dimensions (HxWxD)
        • 151 Х 72.3 Х 10 mm
        • 107 Х 55 Х 15.8 mm
        Weight
        • 158 g
        • 120 g
        Technology
        • IPS LCD
        • TFT
        Screen size
        • 5.5" inch
        • 2.6" inch
        Screen resolution
        • 720 x 1440 px
        • 240 x 320 px
        Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
        • 32GB 1GB RAM
        • 96 MB RAM
        • 128 MB ROM
        Memory card support
        • microSDXC
        • microSD
        BatteryCapacity is not battery life. No endurance test is implied.
        • 2200 mAh
        • Removable Li-Po
        • 1120 mAh
        • Removable Li-Ion
        Operating system OS
        • Android 8.1 Oreo (Go edition)
        • Microsoft Windows Mobile 6.0 Professional
        Chipset Unknown
        • Qualcomm MSM7200
        Headphone jack
        • Yes
        • No
        Display
        Display
        SpecificationJ4XDA Star
        Touchscreen
        • capacitive touchscreen
        • resistive touchscreen
        Display colors
        • 16M
        • 65K
        Screen area
        • 78.1 cm2
        • 20.9 cm2
        Screen format
        • 18:9 (height:width)
        • 4:3 (height:width)
        Screen to body ratio
        • 71.5%
        • 35.6%
        PPI /points per inch/
        • 293 PPI
        • 154 PPI
        Camera and Video
        Camera and Video
        SpecificationJ4XDA Star
        Rear camera, main
        • 8 MP
        • Single
        • 2 MP
        • Single
        Camera specs
        • 8 MP
        • AF
        • 2 MP
        Functions
        • LED flash
        		 Unknown
        Video
        • 720p@30fps
        • Yes
        Front camera, selfie
        • 8 MP
        • Single
        • 0.3 MP
        • Single
        Specifications
        • 8 MP
        • CIF videocall camera
        Performance
        Performance
        SpecificationJ4XDA Star
        Processor CPU
        • Quad-core 1.3 GHz Cortex-A7
        • 400 MHz ARM 11
        Graphics processor GPU
        • Mali-400
        • Adreno 130
        General specs
        General specs
        SpecificationJ4XDA Star
        Release date
        • 2019
        • October
        • 2007
        • October
        Colors
        • Blue
        • Black
        • Brown
        • Black
        Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
        • 70 EUR
        		 Unknown
        Battery life Unknown
        • Stand by time- Up to 250 h Talking time- Up to 5 h
        Communication and Connectivity
        Communication and Connectivity
        SpecificationJ4XDA Star
        SIM card
        • Dual SIM (Nano-SIM
        • dual stand-by)
        • Mini-SIM
        Network
        • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
        • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
        Speed
        • HSPA 21.1/5.76 Mbps
        • HSPA 3.6/0.384 Mbps
        GPRS
        • Yes
        • Class 10
        Edge
        • Yes
        • Yes
        Wi-Fi
        • Wi-Fi 802.11 b/g/n
        • Wi-Fi Direct
        • hotspot
        • No
        GPS
        • Yes
        • with A-GPS
        • No
        USB
        • microUSB 2.0
        • miniUSB
        Bluetooth
        • 4.1
        • A2DP
        • LE
        • 2.0
        Music and Audio
        Music and Audio
        SpecificationJ4XDA Star
        Radio
        • FM radio
        • No
        Others Unknown
        • TouchFLO finger swipe navigation -Handwriting recognition
        Other features
        Other features
        SpecificationJ4XDA Star
        Dop
        • Sensors Accelerometer For USA
        • Pocket Office -Voice memo -MP3/AAC player HTC Nike platform

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