Karbonn A4 vs Panasonic Eluga Ray X

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

    A4: 118 g lighter

    A4:
    75 g
    Eluga Ray X:
    193 g
  • Width

    A4: 11 mm narrower

    A4:
    66 mm
    Eluga Ray X:
    77 mm
  • Screen diagonal

    A4: 1.5 in smaller diagonal

    A4:
    4 in
    Eluga Ray X:
    5.5 in
  • Depth

    A4: 1 mm thinner

    A4:
    9.5 mm
    Eluga Ray X:
    10.5 mm
  • Height

    A4: 28.6 mm shorter

    A4:
    124.8 mm
    Eluga Ray X:
    153.4 mm
  • Release year

    A4:
    2013
    Eluga Ray X:
    2017

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. A4

    Height:
    124.8 mm
    Width:
    66 mm
    Depth:
    9.5 mm
  2. 2. Eluga Ray X

    Height:
    153.4 mm +28.6 mm versus A4
    Width:
    77 mm +11 mm versus A4
    Depth:
    10.5 mm +1 mm versus A4

Weight

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

  1. 1. A4

    75 g

  2. 2. Eluga Ray X

    193 g

    +118 g versus A4

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. A4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²
  2. 2. Eluga Ray X

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

Eluga Ray X has approximately 75% more rectangular screen area than A4.

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 A4, Eluga Ray X, compared at the same storage capacity.
StorageA4Eluga Ray X
32 GB Unknown 3 GB RAM
A4: Original memory entry

256 MB · 512 MB

Practical features

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

1. A4

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

2. Eluga Ray X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

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. A4

    1400 mAh

  2. 2. Eluga Ray X

    4000 mAh

    +2600 mAh versus A4

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. A42. Eluga Ray X

Everyday essentials
Everyday essentials — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Dimensions (HxWxD)
  • 124.8 Х 66 Х 9.5 mm
  • 153.4 Х 77 Х 10.5 mm
Weight
  • 75 g
  • 193 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 5.5" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB
  • 512 MB
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.3.6 (Gingerbread)
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 47.6 cm2
  • 83.4 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 57.8%
  • 70.6%
PPI /points per inch/
  • 144 PPI
  • 267 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
Performance

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

Performance — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Processor CPU Unknown
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-T720
Antutu 7 score * Unknown
  • 35202
GeekBench 4 Single Core * Unknown
  • 531
GeekBench 4 Multi-Core * Unknown
  • 1485
General specs
General specs — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Release date
  • 2013
  • March
  • 2017
  • April
Colors
  • white/black
  • Rose Gold
  • Space Grey
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 4 h 20 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
SIM card
  • Dual SIM (Mini-SIM)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
Speed
  • HSPA
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • Yes
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Radio
  • FM radio
  • FM radio with RDS; recording
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A4, Eluga Ray X.
SpecificationA4Eluga Ray X
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity
  • compass
  • Infrared port