Samsung Galaxy A 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: 25.9 g lighter

    Galaxy A:
    128 g
    i637 Jack:
    102.1 g
  • Width

    Galaxy A: 1.2 mm narrower

    Galaxy A:
    59.8 mm
    i637 Jack:
    61 mm
  • Screen diagonal

    i637 Jack: 1.3 in smaller diagonal

    Galaxy A:
    3.7 in
    i637 Jack:
    2.4 in
  • Height

    i637 Jack: 2.5 mm shorter

    Galaxy A:
    119.5 mm
    i637 Jack:
    117 mm
  • Release year

    Galaxy A:
    2010
    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. Galaxy A

    Height:
    119.5 mm +2.5 mm versus i637 Jack
    Width:
    59.8 mm
    Depth:
    12.5 mm
  2. 2. i637 Jack

    Height:
    117 mm
    Width:
    61 mm +1.2 mm versus Galaxy A
    Depth:
    12.7 mm

Weight

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

  1. 1. Galaxy A

    128 g

    +25.9 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.

  1. 1. Galaxy A

    Screen diagonal:
    3.7 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    39 cm²
  2. 2. i637 Jack

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

Galaxy A has approximately 118.5% 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.

Galaxy A: Original memory entry

1 GB · 384 MB RAM

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. Galaxy A

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 8 GB included

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. Galaxy A

    1500 mAh

    +20 mAh versus i637 Jack

  2. 2. i637 Jack

    1480 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. Galaxy A2. i637 Jack

Everyday essentials
Everyday essentials — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Dimensions (HxWxD)
  • 119.5 Х 59.8 Х 12.5 mm
  • 117 Х 61 Х 12.7 mm
Weight
  • 128 g
  • 102.1 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 3.7" inch
  • 2.4" inch
Screen resolution
  • 480 x 800 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 1 GB
  • 384 MB RAM
  • 256 MB RAM
  • 256 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 8 GB included
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 1480 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.1 (Eclair)
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
Chipset
  • TI OMAP 3430
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 39.0 cm2
  • 17.8 cm2
Screen format
  • 5:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 54.5%
  • 25.0%
PPI /points per inch/
  • 252 PPI
  • 167 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 3.15 MP
Functions
  • LED flash
Unknown
Video
  • 720p
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance
Performance — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Processor CPU
  • 720 MHz Cortex-A8
  • 528 MHz
Graphics processor GPU
  • PowerVR SGX530
Unknown
General specs
General specs — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Release date
  • 2010
  • April
  • 2009
  • May
Colors
  • Deep Black
  • Cream White
Unknown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 100 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 560 h (2G) / Up to 450 h (3G) Talking time- Up to 13 h 20 min (2G) / Up to 7 h 30 min (3G)
  • Stand by time- Up to 288 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
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 7.2/0.384 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • 2.0
Bluetooth
  • 2.1
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.48 W/kg (head)
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Radio
  • No
  • No
Other features
Other features — specifications for Galaxy A, i637 Jack.
SpecificationGalaxy Ai637 Jack
Dop
  • Sensors Accelerometer
  • proximity
  • compass - DMB TV -MP4/DivX/WMV/H.264 player -MP3/WAV/eAAC+ player -Document viewer - For South Korea
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T