Karbonn A4 vs Panasonic T40

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: 42 g lighter

    A4:
    75 g
    T40:
    117 g
  • Width

    T40: 3.5 mm narrower

    A4:
    66 mm
    T40:
    62.5 mm
  • Depth

    T40: 0.5 mm thinner

    A4:
    9.5 mm
    T40:
    9 mm
  • Release year

    A4:
    2013
    T40:
    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.

  1. 1. A4

    Height:
    124.8 mm
    Width:
    66 mm +3.5 mm versus T40
    Depth:
    9.5 mm +0.5 mm versus T40
  2. 2. T40

    Height:
    126 mm
    Width:
    62.5 mm
    Depth:
    9 mm

Weight

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

  1. 1. A4

    75 g

  2. 2. T40

    117 g

    +42 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. T40

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

A4 has approximately 4.6% more rectangular screen area than T40.

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, T40, compared at the same storage capacity.
StorageA4T40
8 GB Unknown 1 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. T40

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

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. T40

    1500 mAh

    +100 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. T40

Everyday essentials
Everyday essentials — specifications for A4, T40.
SpecificationA4T40
Dimensions (HxWxD)
  • 124.8 Х 66 Х 9.5 mm
  • 126 Х 62.5 Х 9 mm
Weight
  • 75 g
  • 117 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 4" inch
Screen resolution
  • 320 x 480 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB
  • 512 MB
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.3.6 (Gingerbread)
  • Android 4.4.2 (KitKat)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A4, T40.
SpecificationA4T40
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 47.6 cm2
  • 45.5 cm2
Screen format
  • 3:2 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 57.8%
  • 57.8%
PPI /points per inch/
  • 144 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for A4, T40.
SpecificationA4T40
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications Unknown
  • 2 MP
Performance
Performance — specifications for A4, T40.
SpecificationA4T40
Processor CPU Unknown
  • Quad-core 1.3 GHz Cortex-A7
General specs
General specs — specifications for A4, T40.
SpecificationA4T40
Release date
  • 2013
  • March
  • 2014
  • October
Colors
  • white/black
  • White
  • Dark Grey
  • Bright red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 90 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, T40.
SpecificationA4T40
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 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA
  • HSPA
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
Bluetooth
  • Yes
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A4, T40.
SpecificationA4T40
Radio
  • FM radio
  • FM radio
  • RDS
Other features
Other features — specifications for A4, T40.
SpecificationA4T40
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity