Samsung i637 Jack vs Samsung i770 Saga

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

    i637 Jack:
    102.1 g
    i770 Saga:
    130 g
  • Width

    i637 Jack: 1 mm narrower

    i637 Jack:
    61 mm
    i770 Saga:
    62 mm
  • Depth

    i637 Jack: 0.8 mm thinner

    i637 Jack:
    12.7 mm
    i770 Saga:
    13.5 mm
  • Height

    i637 Jack: 7 mm shorter

    i637 Jack:
    117 mm
    i770 Saga:
    124 mm
  • Release year

    i637 Jack:
    2009
    i770 Saga:
    2008

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. i770 Saga

    Height:
    124 mm +7 mm versus i637 Jack
    Width:
    62 mm +1 mm versus i637 Jack
    Depth:
    13.5 mm +0.8 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. i770 Saga

    130 g

    +27.9 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. i770 Saga

    Screen diagonal:
    2.55 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    21 cm²

i770 Saga has approximately 17.6% 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

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. i770 Saga

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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. i770 Saga

Everyday essentials
Everyday essentials — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Dimensions (HxWxD)
  • 117 Х 61 Х 12.7 mm
  • 124 Х 62 Х 13.5 mm
Weight
  • 102.1 g
  • 130 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 2.55" inch
Screen resolution
  • 320 x 240 px
  • 320 x 320 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
Unknown
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1480 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
  • Microsoft Windows Mobile 6.1 Professional
Chipset Unknown
  • Qualcomm MSM7500
Headphone jack
  • No
  • No
Display
Display — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Touchscreen Unknown
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 17.8 cm2
  • 21.0 cm2
Screen format
  • 4:3 (height:width)
  • 1:1 (height:width)
Screen to body ratio
  • 25.0%
  • 27.3%
PPI /points per inch/
  • 167 PPI
  • 177 PPI
Camera and Video
Camera and Video — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Rear camera, main
  • 3.15 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 3.15 MP
  • 2 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Processor CPU
  • 528 MHz
  • 400 MHz ARM 11
General specs
General specs — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Release date
  • 2009
  • May
  • 2008
  • November
Colors Unknown
  • Black
  • Red
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 140 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 7 h
  • Stand by time- Up to 300 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
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
Unknown
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
  • No
USB
  • 2.0
  • 2.0
Bluetooth
  • 2.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
  • SAR - 0.68 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Radio
  • No
  • No
Other features
Other features — specifications for i637 Jack, i770 Saga.
Specificationi637 Jacki770 Saga
Dop
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T
  • Pocket Office -Voice memo/dial -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Predictive text input For Verizon