Samsung i637 Jack vs T-Mobile G2 Touch

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: 32.9 g lighter

    i637 Jack:
    102.1 g
    G2 Touch:
    135 g
  • Width

    G2 Touch: 4.8 mm narrower

    i637 Jack:
    61 mm
    G2 Touch:
    56.2 mm
  • Screen diagonal

    i637 Jack: 0.8 in smaller diagonal

    i637 Jack:
    2.4 in
    G2 Touch:
    3.2 in
  • Depth

    i637 Jack: 1.7 mm thinner

    i637 Jack:
    12.7 mm
    G2 Touch:
    14.4 mm
  • Height

    G2 Touch: 5 mm shorter

    i637 Jack:
    117 mm
    G2 Touch:
    112 mm

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 +5 mm versus G2 Touch
    Width:
    61 mm +4.8 mm versus G2 Touch
    Depth:
    12.7 mm
  2. 2. G2 Touch

    Height:
    112 mm
    Width:
    56.2 mm
    Depth:
    14.4 mm +1.7 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. G2 Touch

    135 g

    +32.9 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. G2 Touch

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

G2 Touch has approximately 70.9% 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

G2 Touch: Original memory entry

288 MB RAM · 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. i637 Jack

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

2. G2 Touch

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD (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. i637 Jack

    1480 mAh

    +130 mAh versus G2 Touch

  2. 2. G2 Touch

    1350 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. i637 Jack2. G2 Touch

Everyday essentials
Everyday essentials — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Dimensions (HxWxD)
  • 117 Х 61 Х 12.7 mm
  • 112 Х 56.2 Х 14.4 mm
Weight
  • 102.1 g
  • 135 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 3.2" inch
Screen resolution
  • 320 x 240 px
  • 320 x 480 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
  • 288 MB RAM
  • 512 MB
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1480 mAh
  • Removable Li-Ion
  • 1350 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
  • Android 1.5 (Cupcake); Sense UI
Chipset Unknown
  • Qualcomm MSM7200A
Headphone jack
  • No
  • Yes
Display
Display — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 17.8 cm2
  • 30.5 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 25.0%
  • 48.4%
PPI /points per inch/
  • 167 PPI
  • 180 PPI
Camera and Video
Camera and Video — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • 5 MP
  • AF
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Processor CPU
  • 528 MHz
  • 528 MHz ARM 11
Graphics processor GPU Unknown
  • Adreno 130
General specs
General specs — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Release date
  • 2009
  • May
  • 2009
  • July
Colors Unknown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 260 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 7 h
  • Stand by time- Up to 440 h (2G) / Up to 750 h (3G) Talking time- Up to 8 h (2G) / Up to 7 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 7.2/2 Mbps
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • 2.0
  • miniUSB
Bluetooth
  • 2.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Radio
  • No
  • No
Other features
Other features — specifications for i637 Jack, G2 Touch.
Specificationi637 JackG2 Touch
Dop
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T
  • Sensors Accelerometer
  • proximity
  • compass - Dedicated search key -Scenes quick profile switcher -MP3/AAC+/WAV/WMA9 player -MP4/H.264/WMV9 player -Voice memo -Predictive text input - Trackball