Samsung Gravity SMART 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: 27.9 g lighter

    Gravity SMART:
    130 g
    i637 Jack:
    102.1 g
  • Width

    Gravity SMART: 2 mm narrower

    Gravity SMART:
    59 mm
    i637 Jack:
    61 mm
  • Screen diagonal

    i637 Jack: 0.8 in smaller diagonal

    Gravity SMART:
    3.2 in
    i637 Jack:
    2.4 in
  • Depth

    i637 Jack: 1.3 mm thinner

    Gravity SMART:
    14 mm
    i637 Jack:
    12.7 mm
  • Height

    Gravity SMART: 3 mm shorter

    Gravity SMART:
    114 mm
    i637 Jack:
    117 mm
  • Release year

    Gravity SMART:
    2011
    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. Gravity SMART

    Height:
    114 mm
    Width:
    59 mm
    Depth:
    14 mm +1.3 mm versus i637 Jack
  2. 2. i637 Jack

    Height:
    117 mm +3 mm versus Gravity SMART
    Width:
    61 mm +2 mm versus Gravity SMART
    Depth:
    12.7 mm

Weight

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

  1. 1. Gravity SMART

    130 g

    +27.9 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. Gravity SMART

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

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

Gravity SMART 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.

Gravity SMART: Original memory entry

150 MB · 270 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. Gravity SMART

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 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. Gravity SMART

    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. Gravity SMART2. i637 Jack

Everyday essentials
Everyday essentials — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Dimensions (HxWxD)
  • 114 Х 59 Х 14 mm
  • 117 Х 61 Х 12.7 mm
Weight
  • 130 g
  • 102.1 g
Technology
  • TFT
  • TFT
Screen size
  • 3.2" inch
  • 2.4" inch
Screen resolution
  • 320 x 480 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 150 MB
  • 270 MB RAM
  • 256 MB RAM
  • 256 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 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 2.2 (Froyo)
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
Headphone jack
  • Yes
  • No
Display
Display — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 30.5 cm2
  • 17.8 cm2
Screen format
  • 3:2 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 45.3%
  • 25.0%
PPI /points per inch/
  • 180 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Rear camera, main
  • 3.15 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 3.15 MP
  • 3.15 MP
Functions
  • LED flash
Unknown
Video
  • 320p@14fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Processor CPU
  • 800 MHz ARMv6
  • 528 MHz
General specs
General specs — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Release date
  • 2011
  • June
  • 2009
  • May
Colors
  • Black/Red
  • Black/Green
  • Lunar Grey
Unknown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 364 h Talking time- Up to 5 h 30 min
  • Stand by time- Up to 288 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 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 3.6/0.384 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • 2.0
Bluetooth
  • 3.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 0.47 W/kg (head) 1.05 W/kg (body) SAR EU - 0.19 W/kg (head)
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Radio
  • No
  • No
Other features
Other features — specifications for Gravity SMART, i637 Jack.
SpecificationGravity SMARTi637 Jack
Dop
  • Sensors Accelerometer
  • proximity - MP4/H.264 player -MP3/WAV/AAC+ player -Organizer -Photo/video editor -Document viewer -Voice memo -Predictive text input (Swype) - For T-Mobile. Also known as Samsung Gravity Touch 2
  • Samsung Smart
  • Samsung GT2
  • Samsung SGH-T589
  • Samsung Galaxy Q
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T