i-mate K-JAM vs Icemobile Crystal

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.

  • Width

    Crystal: 1.8 mm narrower

    K-JAM:
    58 mm
    Crystal:
    56.2 mm
  • Screen diagonal

    K-JAM: 0.7 in smaller diagonal

    K-JAM:
    2.8 in
    Crystal:
    3.5 in
  • Chipset

    K-JAM:
    TI OMAP 850
    Crystal:
    Mediatek MT6516
  • Depth

    Crystal: 10.6 mm thinner

    K-JAM:
    23.7 mm
    Crystal:
    13.1 mm
  • Height

    K-JAM: 3.5 mm shorter

    K-JAM:
    108 mm
    Crystal:
    111.5 mm
  • Release year

    K-JAM:
    2005
    Crystal:
    2011

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. K-JAM

    Height:
    108 mm
    Width:
    58 mm +1.8 mm versus Crystal
    Depth:
    23.7 mm +10.6 mm versus Crystal
    Weight:
    160 g
  2. 2. Crystal

    Height:
    111.5 mm +3.5 mm versus K-JAM
    Width:
    56.2 mm
    Depth:
    13.1 mm
    Weight:
    Unknown

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. K-JAM

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

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

Crystal has approximately 43.6% more rectangular screen area than K-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.

K-JAM: Original memory entry

64 MB RAM · 128 MB ROM

Crystal: Original memory entry

512 MB + 256 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. K-JAM

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

2. Crystal

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 2 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. K-JAM

    1250 mAh

    +200 mAh versus Crystal

  2. 2. Crystal

    1050 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. K-JAM2. Crystal

Everyday essentials
Everyday essentials — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Dimensions (HxWxD)
  • 108 Х 58 Х 23.7 mm
  • 111.5 Х 56.2 Х 13.1 mm
Weight
  • 160 g
  • 0 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 240 x 320 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 128 MB ROM
  • 512 MB + 256 MB
Memory card support
  • miniSD
  • up to 2 GB
  • microSD
  • up to 2 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1250 mAh
  • Removable Li-Po
  • 1050 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Android 2.2 (Froyo)
Chipset
  • TI OMAP 850
  • Mediatek MT6516
Headphone jack
  • No
  • Yes
Display
Display — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Touchscreen
  • resistive touchscreen
  • touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 24.3 cm2
  • 34.9 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 38.8%
  • 55.6%
PPI /points per inch/
  • 143 PPI
  • 133 PPI
Camera and Video
Camera and Video — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Rear camera, main
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 1.3 MP
  • 1.3 MP
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Performance
Performance — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Processor CPU
  • 200 MHz ARM926EJ-S
  • 416 MHz
General specs
General specs — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Release date
  • 2005
  • September
  • 2011
  • February
Colors
  • Stylish black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
Unknown
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 5 h
  • Stand by time- Up to 180 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM
  • dual stand-by)
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • No
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11
GPS
  • No
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • Yes
Music and Audio
Music and Audio — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Radio
  • No
  • Stereo FM radio
Other features
Other features — specifications for K-JAM, Crystal.
SpecificationK-JAMCrystal
Dop
  • Infrared port - Microsoft ActiveSync -Pocket Office -MP3/AAC player - Produced by HTC. Functionally identical to Qtek 9100
  • O2 XDA mini S
  • T-Mobile MDA Vario
  • Sensors Accelerometer TV app -Organizer -MP4/H.264 player -MP3/AAC+ player -Predictive text input Trackball -Flashlight