Samsung i637 Jack vs T-Mobile Sidekick 3

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

    i637 Jack: 87.9 g lighter

    i637 Jack:
    102.1 g
    Sidekick 3:
    190 g
  • Width

    Sidekick 3: 2 mm narrower

    i637 Jack:
    61 mm
    Sidekick 3:
    59 mm
  • Screen diagonal

    i637 Jack: 0.2 in smaller diagonal

    i637 Jack:
    2.4 in
    Sidekick 3:
    2.6 in
  • Depth

    i637 Jack: 9.3 mm thinner

    i637 Jack:
    12.7 mm
    Sidekick 3:
    22 mm
  • Height

    i637 Jack: 13 mm shorter

    i637 Jack:
    117 mm
    Sidekick 3:
    130 mm
  • Release year

    i637 Jack:
    2009
    Sidekick 3:
    2006

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. i637 Jack

    Height:
    117 mm
    Width:
    61 mm +2 mm versus Sidekick 3
    Depth:
    12.7 mm
  2. 2. Sidekick 3

    Height:
    130 mm +13 mm versus i637 Jack
    Width:
    59 mm
    Depth:
    22 mm +9.3 mm versus i637 Jack

Weight

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

  1. 1. i637 Jack

    102.1 g

  2. 2. Sidekick 3

    190 g

    +87.9 g versus i637 Jack

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. i637 Jack

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²
  2. 2. Sidekick 3

    Screen diagonal:
    2.6 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    20.1 cm²

Sidekick 3 has approximately 12.8% more rectangular screen area than i637 Jack.

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.

i637 Jack: Original memory entry

256 MB RAM · 256 MB ROM

Sidekick 3: Original memory entry

64 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. i637 Jack

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (dedicated slot)

2. Sidekick 3

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

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. i637 Jack

    1480 mAh

  2. 2. Sidekick 3

    1500 mAh

    +20 mAh versus i637 Jack

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. i637 Jack2. Sidekick 3

Everyday essentials
Everyday essentials — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Dimensions (HxWxD)
  • 117 Х 61 Х 12.7 mm
  • 130 Х 59 Х 22 mm
Weight
  • 102.1 g
  • 190 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 2.6" inch
Screen resolution
  • 320 x 240 px
  • 160 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB RAM
  • 256 MB ROM
  • 64 MB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • miniSD
Battery Capacity is not battery life. No endurance test is implied.
  • 1480 mAh
  • Removable Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
  • Danger 3.0
Headphone jack
  • No
  • No
Display
Display — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Display colors
  • 65K
  • 65K
Screen area
  • 17.8 cm2
  • 20.1 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 25.0%
  • 26.2%
PPI /points per inch/
  • 167 PPI
  • 111 PPI
Camera and Video
Camera and Video — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Rear camera, main
  • 3.15 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 3.15 MP
  • 1.3 MP
Functions Unknown
  • LED flash
Video
  • Yes
  • No
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Processor CPU
  • 528 MHz
Unknown
General specs
General specs — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Release date
  • 2009
  • May
  • 2006
  • June
Colors Unknown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
Unknown
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 7 h
  • Stand by time- Up to 72 h Talking time- Up to 4 h 50 min
Communication and Connectivity
Communication and Connectivity — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 3.6/0.384 Mbps
Unknown
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • 2.0
  • 1.1
Bluetooth
  • 2.0
  • A2DP
  • 1.2
Harmful irradiation
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Radio
  • No
  • No
Others Unknown
  • Swivel display
Other features
Other features — specifications for i637 Jack, Sidekick 3.
Specificationi637 JackSidekick 3
Dop
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T
  • MP3 audio player -Voice memo