Nokia N-Gage QD vs Samsung i637 Jack

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: 40.9 g lighter

    N-Gage QD:
    143 g
    i637 Jack:
    102.1 g
  • Width

    i637 Jack: 7 mm narrower

    N-Gage QD:
    68 mm
    i637 Jack:
    61 mm
  • Screen diagonal

    N-Gage QD: 0.3 in smaller diagonal

    N-Gage QD:
    2.1 in
    i637 Jack:
    2.4 in
  • Depth

    i637 Jack: 9.3 mm thinner

    N-Gage QD:
    22 mm
    i637 Jack:
    12.7 mm
  • Release year

    N-Gage QD:
    2004
    i637 Jack:
    2009

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. N-Gage QD

    Height:
    118 mm
    Width:
    68 mm +7 mm versus i637 Jack
    Depth:
    22 mm +9.3 mm versus i637 Jack
  2. 2. i637 Jack

    Height:
    117 mm
    Width:
    61 mm
    Depth:
    12.7 mm

Weight

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

  1. 1. N-Gage QD

    143 g

    +40.9 g versus i637 Jack

  2. 2. i637 Jack

    102.1 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. N-Gage QD

    N-Gage QD: Screen geometry unavailable or conflicting.

  2. 2. i637 Jack

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

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.

N-Gage QD: Original memory entry

3.4 MB

i637 Jack: Original memory entry

256 MB RAM · 256 MB ROM

Practical features

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

1. N-Gage QD

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

2. i637 Jack

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 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. N-Gage QD

    1070 mAh

  2. 2. i637 Jack

    1480 mAh

    +410 mAh versus N-Gage QD

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. N-Gage QD2. i637 Jack

Everyday essentials
Everyday essentials — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Dimensions (HxWxD)
  • 118 Х 68 Х 22 mm
  • 117 Х 61 Х 12.7 mm
Weight
  • 143 g
  • 102.1 g
Technology
  • TFT
  • TFT
Screen size
  • 2.1" inch
  • 2.4" inch
Screen resolution
  • 176 x 208 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 3.4 MB
  • 256 MB RAM
  • 256 MB ROM
Memory card support
  • MMC
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1070 mAh
  • Removable Li-Ion
  • 1480 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian 6.1
  • Series 60 v1.0 UI
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
Headphone jack
  • No
  • No
Display
Display — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Display colors
  • 4096
  • 65K
Screen area
  • 14.0 cm2
  • 17.8 cm2
Screen format Unknown
  • 4:3 (height:width)
Screen to body ratio
  • 17.5%
  • 25.0%
PPI /points per inch/
  • 0 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Rear camera, main
  • 0 MP,
  • 3.15 MP
  • Single
Camera specs Unknown
  • 3.15 MP
Video Unknown
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Processor CPU
  • 104 MHz ARM 920T
  • 528 MHz
General specs
General specs — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Release date
  • 2004
  • April
  • 2009
  • May
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 120 EUR
Battery life
  • Stand by time- Up to 240 h Talking time- Up to 3 h 30 min
  • Stand by time- Up to 288 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
SIM card
  • Mini-SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 3.6/0.384 Mbps
GPRS
  • Class 6
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g
GPS
  • No
  • Yes
  • with A-GPS
USB Unknown
  • 2.0
Bluetooth
  • 1.1
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 0.60 W/kg (head) 1.03 W/kg (body) SAR EU - 0.44 W/kg (head)
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Radio
  • No
  • No
Others
  • Four-way directional controller
Unknown
Other features
Other features — specifications for N-Gage QD, i637 Jack.
SpecificationN-Gage QDi637 Jack
Dop
  • Predictive text input -SyncML -Voice dial
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T