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  2. Celkon A40 vs O2 XDA Stellar

Celkon A40 vs O2 XDA Stellar

Compare recorded specifications, size and practical differences.

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: 63.5 g lighterA40: 126.5 g · XDA Stellar: 190 g
      • WidthXDA Stellar: 5 mm narrowerXDA Stellar: 59 mm · A40: 64 mm
      • Screen diagonalXDA Stellar: 1.2 in smaller diagonalXDA Stellar: 2.8 in · A40: 4 in
      • DepthA40: 7.8 mm thinnerA40: 10.8 mm · XDA Stellar: 18.6 mm
      • HeightXDA Stellar: 14.2 mm shorterXDA Stellar: 112 mm · A40: 126.2 mm
      • Release year2014 / 2007A40: 2014 · XDA Stellar: 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
      A40: 126.2 × 64 mm 1 XDA Stellar: 112 × 59 mm 2
      Side
      A40: 126.2 × 10.8 mm 1 XDA Stellar: 112 × 18.6 mm 2
      1. 1. A40
        Height
        126.2 mm+14.2 mm versus XDA Stellar
        Width
        64 mm+5 mm versus XDA Stellar
        Depth
        10.8 mm
        Weight
        126.5 g
      2. 2. XDA Stellar
        Height
        112 mm
        Width
        59 mm
        Depth
        18.6 mm+7.8 mm versus A40
        Weight
        190 g
      Weight

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

      1. 1. A40126.5 g
      2. 2. XDA Stellar190 g

        +63.5 g versus A40

      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
      A40: 4 in, 5:3, About 45.5 cm² rectangular area 1 XDA Stellar: 2.8 in, 4:3, About 24.3 cm² rectangular area 2
      1. 1. A40 4 in · 5:3 About 45.5 cm² rectangular area
      2. 2. XDA Stellar 2.8 in · 4:3 About 24.3 cm² rectangular area

      A40 has approximately 87.6% more rectangular screen area than XDA Stellar.

      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.

      No unambiguous storage/RAM pairings are recorded. See the original specifications below.

      A40: Original memory entry

      4 GB · 512 MB RAM

      XDA Stellar: Original memory entry

      128 MB RAM · 256 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. A40

      NFC
      Unknown
      Headphone jack
      Yes
      Memory card support
      See details microSD · up to 32 GB (dedicated slot)

      2. XDA Stellar

      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. A401500 mAh

        +150 mAh versus XDA Stellar

      2. 2. XDA Stellar1350 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. A402. XDA Stellar

      Everyday essentials
      Everyday essentials
      SpecificationA40XDA Stellar
      Dimensions (HxWxD)
      • 126.2 Х 64 Х 10.8 mm
      • 112 Х 59 Х 18.6 mm
      Weight
      • 126.5 g
      • 190 g
      Technology
      • TFT
      • TFT
      Screen size
      • 4" inch
      • 2.8" inch
      Screen resolution
      • 480 x 800 px
      • 240 x 320 px
      Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
      • 4 GB
      • 512 MB RAM
      • 128 MB RAM
      • 256 MB ROM
      Memory card support
      • microSD
      • up to 32 GB (dedicated slot)
      • microSD
      BatteryCapacity is not battery life. No endurance test is implied.
      • 1500 mAh
      • Li-Ion
      • 1350 mAh
      • Removable Li-Ion
      Operating system OS
      • Android 4.2.2 (Jelly Bean)
      • Microsoft Windows Mobile 6.0 Professional
      Chipset Unknown
      • Qualcomm MSM7200
      Headphone jack
      • Yes
      • No
      Display
      Display
      SpecificationA40XDA Stellar
      Touchscreen
      • touchscreen
      • resistive touchscreen
      Display colors Unknown
      • 65K
      Screen area
      • 45.5 cm2
      • 24.3 cm2
      Screen format
      • 5:3 (height:width)
      • 4:3 (height:width)
      Screen to body ratio
      • 56.4%
      • 36.7%
      PPI /points per inch/
      • 233 PPI
      • 143 PPI
      Camera and Video
      Camera and Video
      SpecificationA40XDA Stellar
      Rear camera, main
      • 5 MP
      • Single
      • 3.15 MP
      • Single
      Camera specs
      • 5 MP
      • 3.15 MP
      • AF
      Video
      • Yes
      • Yes
      Front camera, selfie
      • 0.3 MP
      • Single
      • 0.3 MP
      • Single
      Specifications
      • VGA
      • VGA videocall camera
      Performance
      Performance
      SpecificationA40XDA Stellar
      Processor CPU
      • Dual-core 1.3 GHz
      • 400 MHz ARM 11
      Graphics processor GPU Unknown
      • Adreno 130
      General specs
      General specs
      SpecificationA40XDA Stellar
      Release date
      • 2014
      • January
      • 2007
      • November
      Colors
      • White
      • Yellow
      • Blue
      • Silver
      Battery life Unknown
      • Stand by time- Up to 365 h Talking time- Up to 5 h
      Communication and Connectivity
      Communication and Connectivity
      SpecificationA40XDA Stellar
      SIM card
      • Dual SIM
      • Mini-SIM
      Network Unknown
      • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
      Speed Unknown
      • HSPA 3.6/0.384 Mbps
      GPRS
      • Yes
      • Class 10
      Edge
      • Yes
      • Class 10
      Wi-Fi
      • Wi-Fi 802.11 b/g/n
      • hotspot
      • Wi-Fi 802.11b/g
      GPS
      • Yes
      • Yes
      • with A-GPS
      USB
      • microUSB 2.0
      • 2.0
      Bluetooth
      • 2.0
      • 2.0
      Music and Audio
      Music and Audio
      SpecificationA40XDA Stellar
      Radio
      • FM radio
      • No
      Others Unknown
      • Handwriting recognition
      Other features
      Other features
      SpecificationA40XDA Stellar
      Dop
      • Sensors Accelerometer
      • proximity
      • Pocket Office -Business card reader -Voice memo -Media Player 10 HTC Kaiser platform

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