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BLU J4 vs Celkon A40

Compare recorded specifications, size and practical differences.

BLU J4

BLU J4

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    Celkon A40

    Celkon A40

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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.

        • WeightA40: 31.5 g lighterA40: 126.5 g · J4: 158 g
        • WidthA40: 8.3 mm narrowerA40: 64 mm · J4: 72.3 mm
        • Screen diagonalA40: 1.5 in smaller diagonalA40: 4 in · J4: 5.5 in
        • DepthJ4: 0.8 mm thinnerJ4: 10 mm · A40: 10.8 mm
        • HeightA40: 24.8 mm shorterA40: 126.2 mm · J4: 151 mm
        • Release year2019 / 2014J4: 2019 · A40: 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.

        Front
        J4: 151 × 72.3 mm 1 A40: 126.2 × 64 mm 2
        Side
        J4: 151 × 10 mm 1 A40: 126.2 × 10.8 mm 2
        1. 1. J4
          Height
          151 mm
          Width
          72.3 mm
          Depth
          10 mm
          Weight
          158 g
        2. 2. A40
          Height
          126.2 mm
          Width
          64 mm
          Depth
          10.8 mm
          Weight
          126.5 g

        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
        SpecificationJ4A40
        Dimensions (HxWxD)
        • 151 Х 72.3 Х 10 mm
        • 126.2 Х 64 Х 10.8 mm
        Weight
        • 158 g
        • 126.5 g
        Technology
        • IPS LCD
        • TFT
        Screen size
        • 5.5" inch
        • 4" inch
        Screen resolution
        • 720 x 1440 px
        • 480 x 800 px
        Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
        • 32GB 1GB RAM
        • 4 GB
        • 512 MB RAM
        Memory card support
        • microSDXC
        • microSD
        • up to 32 GB (dedicated slot)
        BatteryCapacity is not battery life. No endurance test is implied.
        • 2200 mAh
        • Removable Li-Po
        • 1500 mAh
        • Li-Ion
        Operating system OS
        • Android 8.1 Oreo (Go edition)
        • Android 4.2.2 (Jelly Bean)
        Headphone jack
        • Yes
        • Yes
        Display
        Display
        SpecificationJ4A40
        Touchscreen
        • capacitive touchscreen
        • touchscreen
        Display colors
        • 16M
        		 Unknown
        Screen area
        • 78.1 cm2
        • 45.5 cm2
        Screen format
        • 18:9 (height:width)
        • 5:3 (height:width)
        Screen to body ratio
        • 71.5%
        • 56.4%
        PPI /points per inch/
        • 293 PPI
        • 233 PPI
        Camera and Video
        Camera and Video
        SpecificationJ4A40
        Rear camera, main
        • 8 MP
        • Single
        • 5 MP
        • Single
        Camera specs
        • 8 MP
        • AF
        • 5 MP
        Functions
        • LED flash
        		 Unknown
        Video
        • 720p@30fps
        • Yes
        Front camera, selfie
        • 8 MP
        • Single
        • 0.3 MP
        • Single
        Specifications
        • 8 MP
        • VGA
        Performance
        Performance
        SpecificationJ4A40
        Processor CPU
        • Quad-core 1.3 GHz Cortex-A7
        • Dual-core 1.3 GHz
        Graphics processor GPU
        • Mali-400
        		 Unknown
        General specs
        General specs
        SpecificationJ4A40
        Release date
        • 2019
        • October
        • 2014
        • January
        Colors
        • Blue
        • Black
        • Brown
        • White
        • Yellow
        • Blue
        Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
        • 70 EUR
        		 Unknown
        Communication and Connectivity
        Communication and Connectivity
        SpecificationJ4A40
        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
        		 Unknown
        Speed
        • HSPA 21.1/5.76 Mbps
        		 Unknown
        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
        USB
        • microUSB 2.0
        • microUSB 2.0
        Bluetooth
        • 4.1
        • A2DP
        • LE
        • 2.0
        Music and Audio
        Music and Audio
        SpecificationJ4A40
        Radio
        • FM radio
        • FM radio
        Other features
        Other features
        SpecificationJ4A40
        Dop
        • Sensors Accelerometer For USA
        • Sensors Accelerometer
        • proximity