LG Optimus Chat C550 vs Motorola A728

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    A728: 6 mm narrower

    Optimus Chat C550:
    59 mm
    A728:
    53 mm
  • Depth

    Optimus Chat C550: 5 mm thinner

    Optimus Chat C550:
    16 mm
    A728:
    21 mm
  • Height

    A728: 8 mm shorter

    Optimus Chat C550:
    109 mm
    A728:
    101 mm
  • Release year

    Optimus Chat C550:
    2011
    A728:
    2005

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 +8 mm versus A728
    Width:
    59 mm +6 mm versus A728
    Depth:
    16 mm
  2. 2. A728

    Height:
    101 mm
    Width:
    53 mm
    Depth:
    21 mm +5 mm versus Optimus Chat C550

Weight

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

  1. 1. Optimus Chat C550

    122 g

    +2 g versus A728

  2. 2. A728

    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.

At least two phones need compatible screen dimensions for a drawing.

  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. A728

    A728: Screen geometry unavailable or conflicting.

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

A728: Original memory entry

8 MB

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. A728

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

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. Optimus Chat C5502. A728

Everyday essentials
Everyday essentials — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
Dimensions (HxWxD)
  • 109 Х 59 Х 16 mm
  • 101 Х 53 Х 21 mm
Weight
  • 122 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 0" inch
Screen resolution
  • 320 x 480 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 140 MB
  • 8 MB
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
  • 0 mAh,
Operating system OS
  • Android 2.2 (Froyo)
  • Linux
Headphone jack
  • Yes
  • No
Display
Display — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
Touchscreen
  • touchscreen
  • resistive touchscreen
Display colors
  • 256K
  • 65K
Screen area
  • 23.3 cm2
Unknown
Screen format
  • 3:2 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 36.3%
Unknown
PPI /points per inch/
  • 206 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
Rear camera, main
  • 3.15 MP
  • Single
  • 0.3 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
General specs
General specs — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
Release date
  • 2011
  • February
  • 2005
  • July
Colors
  • Black
  • Silver
  • Blue
  • Red
  • Pink
  • Mr. black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 40 EUR
Unknown
Battery life
  • Stand by time- Up to 440 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 7.2/5.76 Mbps
Unknown
GPRS
  • Yes
  • Class 8
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 2.1
  • A2DP
  • EDR
  • Yes
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)
Unknown
Music and Audio
Music and Audio — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
Radio
  • FM radio
  • No
Others Unknown
  • Handwriting and speech recognition (Chi & Eng)
Other features
Other features — specifications for Optimus Chat C550, A728.
SpecificationOptimus Chat C550A728
Dop
  • Sensors Accelerometer MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Document viewer -Organizer -Voice memo -Predictive text input
  • Infrared port - MP3 player -Organizer -Voice dial/memo