Celkon A99 vs Samsung i780

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

    i780: 2.7 mm narrower

    A99:
    64 mm
    i780:
    61.3 mm
  • Screen diagonal

    i780: 1.45 in smaller diagonal

    A99:
    4 in
    i780:
    2.55 in
  • Depth

    A99: 1.6 mm thinner

    A99:
    11.3 mm
    i780:
    12.9 mm
  • Height

    i780: 5.5 mm shorter

    A99:
    121.4 mm
    i780:
    115.9 mm
  • Release year

    A99:
    2012
    i780:
    2007

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. A99

    Height:
    121.4 mm +5.5 mm versus i780
    Width:
    64 mm +2.7 mm versus i780
    Depth:
    11.3 mm
  2. 2. i780

    Height:
    115.9 mm
    Width:
    61.3 mm
    Depth:
    12.9 mm +1.6 mm versus A99

Weight

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

  1. 1. A99

    120 g

  2. 2. i780

    120 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. A99

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²
  2. 2. i780

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

A99 has approximately 127.1% more rectangular screen area than i780.

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.

i780: Original memory entry

128 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. A99

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

2. i780

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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. A99

    1200 mAh

  2. 2. i780

    1480 mAh

    +280 mAh versus A99

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. A992. i780

Everyday essentials
Everyday essentials — specifications for A99, i780.
SpecificationA99i780
Dimensions (HxWxD)
  • 121.4 Х 64 Х 11.3 mm
  • 115.9 Х 61.3 Х 12.9 mm
Weight
  • 120 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 4" inch
  • 2.55" inch
Screen resolution
  • 320 x 480 px
  • 320 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128 MB RAM
  • 256 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Li-Ion
  • 1480 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.3.5 (Gingerbread)
  • Microsoft Windows Mobile 6.0 Professional
Headphone jack
  • Yes
  • No
Display
Display — specifications for A99, i780.
SpecificationA99i780
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 256K
  • 65K
Screen area
  • 47.6 cm2
  • 21.0 cm2
Screen format
  • 3:2 (height:width)
  • 1:1 (height:width)
Screen to body ratio
  • 61.3%
  • 29.5%
PPI /points per inch/
  • 144 PPI
  • 177 PPI
Camera and Video
Camera and Video — specifications for A99, i780.
SpecificationA99i780
Rear camera, main
  • 3.15 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 3.15 MP
  • 2 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA videocall camera
Performance
Performance — specifications for A99, i780.
SpecificationA99i780
Processor CPU
  • 650 MHz
  • 32-bit Marvell PXA310 624 MHz
General specs
General specs — specifications for A99, i780.
SpecificationA99i780
Release date
  • 2012
  • 2007
  • September
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 150 EUR
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 3 h
  • Stand by time- Up to 400 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for A99, i780.
SpecificationA99i780
SIM card
  • Dual SIM (Mini-SIM)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • hotspot
  • Wi-Fi 802.11b/g
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 2.1
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.48 W/kg (head) 0.73 W/kg (body) SAR EU - 0.51 W/kg (head)
Music and Audio
Music and Audio — specifications for A99, i780.
SpecificationA99i780
Radio
  • Stereo FM radio
  • RDS
  • recordin
  • No
Other features
Other features — specifications for A99, i780.
SpecificationA99i780
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/eAAC player -MP4/H.264 player -Document viewer -Organizer -Voice memo/dial -Predictive text input
  • Pocket Office -Voice memo -Callia Player
  • Callia Reader -Photo Slides -SmartConverter -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player - Optical trackpad