Samsung i637 Jack vs T-Mobile Prism II

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

    i637 Jack: 1 mm narrower

    i637 Jack:
    61 mm
    Prism II:
    62 mm
  • Screen diagonal

    i637 Jack: 1.1 in smaller diagonal

    i637 Jack:
    2.4 in
    Prism II:
    3.5 in
  • Release year

    i637 Jack:
    2009
    Prism II:
    2013

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
    Depth:
    12.7 mm
  2. 2. Prism II

    Height:
    117 mm
    Width:
    62 mm +1 mm versus i637 Jack
    Depth:
    12.4 mm

Weight

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

  1. 1. i637 Jack

    102.1 g

    +2.1 g versus Prism II

  2. 2. Prism II

    100 g

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. Prism II

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

Prism II has approximately 104.5% 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

Prism II: 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. i637 Jack

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

2. Prism II

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. i637 Jack

    1480 mAh

  2. 2. Prism II

    1750 mAh

    +270 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. Prism II

Everyday essentials
Everyday essentials — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
Dimensions (HxWxD)
  • 117 Х 61 Х 12.7 mm
  • 117 Х 62 Х 12.4 mm
Weight
  • 102.1 g
  • 100 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 3.5" 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
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1480 mAh
  • Removable Li-Ion
  • 1750 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
  • Android 4.1 (Jelly Bean)
Headphone jack
  • No
  • Yes
Display
Display — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 65K
Unknown
Screen area
  • 17.8 cm2
  • 36.5 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 25.0%
  • 50.3%
PPI /points per inch/
  • 167 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
Rear camera, main
  • 3.15 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 3.15 MP
  • 3.15 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
Processor CPU
  • 528 MHz
  • 1.0 GHz Cortex-A5
General specs
General specs — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
Release date
  • 2009
  • May
  • 2013
  • June
Colors Unknown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 90 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 7 h
  • Stand by time- Up to 260 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
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
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • 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, Prism II.
Specificationi637 JackPrism II
Radio
  • No
  • FM radio
Other features
Other features — specifications for i637 Jack, Prism II.
Specificationi637 JackPrism II
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