Coolpad Cool 6 vs LG Optimus LTE SU640

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 LTE SU640: 63 g lighter

    Cool 6:
    198 g
    Optimus LTE SU640:
    135 g
  • Width

    Optimus LTE SU640: 8.6 mm narrower

    Cool 6:
    76.5 mm
    Optimus LTE SU640:
    67.9 mm
  • Screen diagonal

    Optimus LTE SU640: 2.03 in smaller diagonal

    Cool 6:
    6.53 in
    Optimus LTE SU640:
    4.5 in
  • Rear camera layout

    Cool 6:
    Triple
    Optimus LTE SU640:
    Single
  • Depth

    Cool 6: 1.2 mm thinner

    Cool 6:
    9.2 mm
    Optimus LTE SU640:
    10.4 mm
  • Height

    Optimus LTE SU640: 29.5 mm shorter

    Cool 6:
    162.4 mm
    Optimus LTE SU640:
    132.9 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 6

    Height:
    162.4 mm +29.5 mm versus Optimus LTE SU640
    Width:
    76.5 mm +8.6 mm versus Optimus LTE SU640
    Depth:
    9.2 mm
  2. 2. Optimus LTE SU640

    Height:
    132.9 mm
    Width:
    67.9 mm
    Depth:
    10.4 mm +1.2 mm versus Cool 6

Weight

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

  1. 1. Cool 6

    198 g

    +63 g versus Optimus LTE SU640

  2. 2. Optimus LTE SU640

    135 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 6

    Screen diagonal:
    6.53 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    104.7 cm²
  2. 2. Optimus LTE SU640

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²

Cool 6 has approximately 87.5% more rectangular screen area than Optimus LTE SU640.

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 6, Optimus LTE SU640, compared at the same storage capacity.
StorageCool 6Optimus LTE SU640
4 GB Not recorded 1 GB RAM
64 GB 4 GB RAM Not recorded
128 GB 6 GB RAM Not recorded

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 6

NFC:
No
Headphone jack:
No
Memory card support:
See details microSDXC (uses shared SIM slot)

2. Optimus LTE SU640

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 16 GB included

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 6

    4000 mAh

    +2170 mAh versus Optimus LTE SU640

  2. 2. Optimus LTE SU640

    1830 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 62. Optimus LTE SU640

Everyday essentials
Everyday essentials — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Dimensions (HxWxD)
  • 162.4 Х 76.5 Х 9.2 mm
  • 132.9 Х 67.9 Х 10.4 mm
Weight
  • 198 g
  • 135 g
Technology
  • IPS LCD
  • HD-IPS LCD
Screen size
  • 6.53" inc
  • 4.5" inch
Screen resolution
  • 1080 x 2340 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 4GB RAM
  • 128GB 6GB RAM
  • 4 GB
  • 1 GB RAM
Memory card support
  • microSDXC (uses shared SIM slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Li-Po
  • non-removable
  • 1830 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10
  • Android 2.3.5 (Gingerbread)
  • upgradable to 4.0 (Ice Cream Sandwich)
Chipset
  • - Mediatek MT6771T Helio P70 (12nm)
  • Qualcomm MSM8660 Snapdragon S3
NFC
  • No
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 104.7 cm2
  • 55.8 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.3%
  • 61.9%
PPI /points per inch/ Unknown
  • 326 PPI
Camera and Video
Camera and Video — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Rear camera, main
  • 48 MP
  • Triple
  • 8 MP
  • Single
Camera specs
  • -48 MP
  • (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -2 MP
  • f/2.4
  • (macro) -2 MP
  • (depth)
  • 8 MP
  • AF
Functions
  • LED flash
  • panorama
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 21 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • Motorized pop-up 21 MP
  • 1.3 MP
Performance
Performance — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Processor CPU
  • - Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
  • Dual-core 1.5 GHz Scorpion
Graphics processor GPU
  • - Mali-G72 MP3
  • Adreno 220
General specs
General specs — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Release date
  • 2020
  • October 15
  • 2011
  • October
Colors
  • Gray
  • Blue
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 120 EUR
Battery life Unknown
  • Stand by time- Up to 400 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 1900 -4G - LTE 800
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE
  • HSPA
  • LTE
GPRS
  • Yes
  • No
Edge
  • Yes
  • No
Wi-Fi
  • Yes
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • USB Type-C 2.0
  • microUSB 2.0 (MHL TV-out)
Bluetooth
  • Yes
  • 3.0
  • A2DP
Music and Audio
Music and Audio — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Radio
  • FM radio
  • No
Others Unknown
  • True HD Graphic Engine
  • Dolby Mobile -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Cool 6, Optimus LTE SU640.
SpecificationCool 6Optimus LTE SU640
Dop
  • - Sensors - Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - T-DMB TV tuner -MP4/H.264/WMV/DviX player -MP3/WMA/WAV/FLAC/eAAC+ player -True HD movie editor -Document viewer/editor -Organizer -Voice memo/dial/commands -Predictive text input - For South Korea