LG Optimus Chat C550 vs LG Quantum

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

    Optimus Chat C550: 54 g lighter

    Optimus Chat C550:
    122 g
    Quantum:
    176 g
  • Screen diagonal

    Optimus Chat C550: 0.7 in smaller diagonal

    Optimus Chat C550:
    2.8 in
    Quantum:
    3.5 in
  • Depth

    Quantum: 0.8 mm thinner

    Optimus Chat C550:
    16 mm
    Quantum:
    15.2 mm
  • Height

    Optimus Chat C550: 10.5 mm shorter

    Optimus Chat C550:
    109 mm
    Quantum:
    119.5 mm
  • Release year

    Optimus Chat C550:
    2011
    Quantum:
    2010

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. Optimus Chat C550

    Height:
    109 mm
    Width:
    59 mm
    Depth:
    16 mm +0.8 mm versus Quantum
  2. 2. Quantum

    Height:
    119.5 mm +10.5 mm versus Optimus Chat C550
    Width:
    59.5 mm
    Depth:
    15.2 mm

Weight

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

  1. 1. Optimus Chat C550

    122 g

  2. 2. Quantum

    176 g

    +54 g versus Optimus Chat C550

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. Optimus Chat C550

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    23.3 cm²
  2. 2. Quantum

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    34.9 cm²

Quantum has approximately 49.4% more rectangular screen area than Optimus Chat C550.

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.

Optimus Chat C550: Original memory entry

140 MB

Quantum: Original memory entry

16 GB · 512 MB RAM · 512 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. Optimus Chat C550

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

2. Quantum

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. Optimus Chat C550

    1500 mAh

  2. 2. Quantum

    1500 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. Optimus Chat C5502. Quantum

Everyday essentials
Everyday essentials — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Dimensions (HxWxD)
  • 109 Х 59 Х 16 mm
  • 119.5 Х 59.5 Х 15.2 mm
Weight
  • 122 g
  • 176 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 320 x 480 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 140 MB
  • 16 GB
  • 512 MB RAM
  • 512 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Microsoft Windows Phone 7
Chipset Unknown
  • Qualcomm QSD8650 Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 23.3 cm2
  • 34.9 cm2
Screen format
  • 3:2 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 36.3%
  • 49.0%
PPI /points per inch/
  • 206 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • 720p
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Processor CPU Unknown
  • 1.0 GHz Scorpion
Graphics processor GPU Unknown
  • Adreno 200
General specs
General specs — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Release date
  • 2011
  • February
  • 2010
  • October
Colors
  • Black
  • Silver
  • Blue
  • Red
  • Pink
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 40 EUR
  • 80 EUR
Battery life
  • Stand by time- Up to 440 h Talking time- Up to 5 h
  • Stand by time- Up to 350 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
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 7.2/5.76 Mbps
  • HSPA
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • DLNA
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • EDR
  • 2.1
  • A2DP
Harmful irradiation
  • SAR - 0.49 W/kg (head) 0.39 W/kg (body) SAR EU - 0.71 W/kg (head) 1.24 W/kg (body)
  • SAR - 0.35 W/kg (head) 0.30 W/kg (body)
Music and Audio
Music and Audio — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for Optimus Chat C550, Quantum.
SpecificationOptimus Chat C550Quantum
Dop
  • Sensors Accelerometer MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Document viewer -Organizer -Voice memo -Predictive text input
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Organizer -Document viewer/editor -Voice memo/dial/command -Predictive text input - For AT&T