i-mate JAM vs Karbonn A30

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

    JAM: 130 g lighter

    JAM:
    150 g
    A30:
    280 g
  • Width

    JAM: 33 mm narrower

    JAM:
    58 mm
    A30:
    91 mm
  • Screen diagonal

    JAM: 3.1 in smaller diagonal

    JAM:
    2.8 in
    A30:
    5.9 in
  • Depth

    A30: 7.3 mm thinner

    JAM:
    18 mm
    A30:
    10.7 mm
  • Height

    JAM: 58 mm shorter

    JAM:
    108 mm
    A30:
    166 mm
  • Release year

    JAM:
    2004
    A30:
    2012

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. JAM

    Height:
    108 mm
    Width:
    58 mm
    Depth:
    18 mm +7.3 mm versus A30
  2. 2. A30

    Height:
    166 mm +58 mm versus JAM
    Width:
    91 mm +33 mm versus JAM
    Depth:
    10.7 mm

Weight

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

  1. 1. JAM

    150 g

  2. 2. A30

    280 g

    +130 g versus JAM

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. JAM

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. A30

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

A30 has approximately 308.1% more rectangular screen area than JAM.

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.

JAM: Original memory entry

64 MB RAM

A30: Original memory entry

4 GB · 512 MB RAM

Practical features

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

1. JAM

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details SDIO/MMC · up to 2 GB

2. A30

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. JAM

    1200 mAh

  2. 2. A30

    2500 mAh

    +1300 mAh versus JAM

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. JAM2. A30

Everyday essentials
Everyday essentials — specifications for JAM, A30.
SpecificationJAMA30
Dimensions (HxWxD)
  • 108 Х 58 Х 18 mm
  • 166 Х 91 Х 10.7 mm
Weight
  • 150 g
  • 280 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 5.9" inch
Screen resolution
  • 240 x 320 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • SDIO/MMC
  • up to 2 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 2500 mAh
  • Li-Ion
Operating system OS
  • Microsoft Windows Mobile 2003 SE PocketPC
  • Android 4.0.4 (Ice Cream Sandwich)
Headphone jack
  • No
  • Yes
Display
Display — specifications for JAM, A30.
SpecificationJAMA30
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 256K
Screen area
  • 24.3 cm2
  • 99.1 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 38.8%
  • 65.6%
PPI /points per inch/
  • 143 PPI
  • 158 PPI
Camera and Video
Camera and Video — specifications for JAM, A30.
SpecificationJAMA30
Rear camera, main
  • 1.3 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 1.3 MP
  • 8 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 1.3 MP
  • Single
Specifications Unknown
  • 1.3 MP
Performance
Performance — specifications for JAM, A30.
SpecificationJAMA30
Processor CPU
  • Intel PXA272 416 MHz
  • Dual-core 1.0 GHz
General specs
General specs — specifications for JAM, A30.
SpecificationJAMA30
Release date
  • 2004
  • Q4
  • 2012
Colors
  • Stylish black and silver
  • Black/White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 160 EUR
Battery life
  • Stand by time- Up to 180 h Talking time- Up to 3 h 30 min
  • Stand by time- Up to 600 h Talking time- Up to 10 h
Communication and Connectivity
Communication and Connectivity — specifications for JAM, A30.
SpecificationJAMA30
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM)
Network Unknown
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed Unknown
  • HSPA 7.2/0.384 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • Yes
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.46 W/kg (head)
Music and Audio
Music and Audio — specifications for JAM, A30.
SpecificationJAMA30
Radio
  • No
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for JAM, A30.
SpecificationJAMA30
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player -Predictive text input - Produced by HTC. Functionally identical to Qtek S100
  • O2 XDA II mini and T-Mobile MDA Compact.
  • Sensors Accelerometer