Coolpad Cool 12A vs LG Optimus Chat C550

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: 80.5 g lighter

    Cool 12A:
    202.5 g
    Optimus Chat C550:
    122 g
  • Width

    Optimus Chat C550: 16.2 mm narrower

    Cool 12A:
    75.2 mm
    Optimus Chat C550:
    59 mm
  • Screen diagonal

    Optimus Chat C550: 3.5 in smaller diagonal

    Cool 12A:
    6.3 in
    Optimus Chat C550:
    2.8 in
  • Rear camera layout

    Cool 12A:
    Dual
    Optimus Chat C550:
    Single
  • Depth

    Cool 12A: 7.1 mm thinner

    Cool 12A:
    8.9 mm
    Optimus Chat C550:
    16 mm
  • Height

    Optimus Chat C550: 47.2 mm shorter

    Cool 12A:
    156.2 mm
    Optimus Chat C550:
    109 mm

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. Cool 12A

    Height:
    156.2 mm +47.2 mm versus Optimus Chat C550
    Width:
    75.2 mm +16.2 mm versus Optimus Chat C550
    Depth:
    8.9 mm
  2. 2. Optimus Chat C550

    Height:
    109 mm
    Width:
    59 mm
    Depth:
    16 mm +7.1 mm versus Cool 12A

Weight

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

  1. 1. Cool 12A

    202.5 g

    +80.5 g versus Optimus Chat C550

  2. 2. Optimus Chat C550

    122 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. Cool 12A

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    97.4 cm²
  2. 2. Optimus Chat C550

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

Cool 12A has approximately 317.3% 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.

Recorded RAM for Cool 12A, Optimus Chat C550, compared at the same storage capacity.
StorageCool 12AOptimus Chat C550
64 GB 4 GB RAM Unknown
Optimus Chat C550: Original memory entry

140 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. Cool 12A

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD

2. Optimus Chat C550

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. Cool 12A

    4000 mAh

    +2500 mAh versus Optimus Chat C550

  2. 2. Optimus Chat C550

    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. Cool 12A2. Optimus Chat C550

Everyday essentials
Everyday essentials — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Dimensions (HxWxD)
  • 156.2 Х 75.2 Х 8.9 mm
  • 109 Х 59 Х 16 mm
Weight
  • 202.5 g
  • 122 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.3" inc
  • 2.8" inch
Screen resolution
  • 720 x 1560 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 4GB RAM
  • 140 MB
Memory card support
  • microSD
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Li-Po
  • non-removable
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android
  • Android 2.2 (Froyo)
Chipset
  • - Unisoc Tiger T310
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Touchscreen
  • capacitive touchscreen
  • touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 97.4 cm2
  • 23.3 cm2
Screen format
  • 19.5:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 82.9%
  • 36.3%
PPI /points per inch/ Unknown
  • 206 PPI
Camera and Video
Camera and Video — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Rear camera, main
  • 16 MP
  • Dual
  • 3.15 MP
  • Single
Camera specs
  • -16 MP
  • PDAF -2 MP
  • 3.15 MP
  • AF
Functions
  • LED flash
  • panorama
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 MP
Unknown
Performance
Performance — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Processor CPU
  • - Quad-core (1x2.0 GHz Cortex-A75 & 3x1.8 GHz Cortex-A55)
Unknown
General specs
General specs — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Release date
  • 2020
  • October 05
  • 2011
  • February
Colors
  • Dream Black
  • Dream Blue
  • Fantasy Silver
  • Black
  • Silver
  • Blue
  • Red
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 40 EUR
Battery life Unknown
  • Stand by time- Up to 440 h Talking time- Up to 5 h
Body build
  • Glass front
  • plastic frame
  • glass back
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
SIM card
  • Nano-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE
  • HSPA 7.2/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • USB Type-C 2.0
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • 2.1
  • A2DP
  • EDR
Harmful irradiation Unknown
  • SAR - 0.49 W/kg (head) 0.39 W/kg (body) SAR EU - 0.71 W/kg (head) 1.24 W/kg (body)
Music and Audio
Music and Audio — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Cool 12A, Optimus Chat C550.
SpecificationCool 12AOptimus Chat C550
Dop
  • - Sensors - Fingerprint (side-mounted)
  • accelerometer
  • proximity
  • Sensors Accelerometer MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Document viewer -Organizer -Voice memo -Predictive text input