LG Optimus LTE SU640 vs Sharp Z2

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: 25 g lighter

    Optimus LTE SU640:
    135 g
    Z2:
    160 g
  • Width

    Optimus LTE SU640: 8.1 mm narrower

    Optimus LTE SU640:
    67.9 mm
    Z2:
    76 mm
  • Screen diagonal

    Optimus LTE SU640: 1 in smaller diagonal

    Optimus LTE SU640:
    4.5 in
    Z2:
    5.5 in
  • Chipset

    Optimus LTE SU640:
    Qualcomm MSM8660 Snapdragon S3
    Z2:
    Mediatek MT6797 Helio X20 (20 nm)
  • Depth

    Z2: 2 mm thinner

    Optimus LTE SU640:
    10.4 mm
    Z2:
    8.4 mm
  • Height

    Optimus LTE SU640: 20.1 mm shorter

    Optimus LTE SU640:
    132.9 mm
    Z2:
    153 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. Optimus LTE SU640

    Height:
    132.9 mm
    Width:
    67.9 mm
    Depth:
    10.4 mm +2 mm versus Z2
  2. 2. Z2

    Height:
    153 mm +20.1 mm versus Optimus LTE SU640
    Width:
    76 mm +8.1 mm versus Optimus LTE SU640
    Depth:
    8.4 mm

Weight

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

  1. 1. Optimus LTE SU640

    135 g

  2. 2. Z2

    160 g

    +25 g versus Optimus LTE SU640

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 LTE SU640

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Z2

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

Z2 has approximately 49.4% 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 Optimus LTE SU640, Z2, compared at the same storage capacity.
StorageOptimus LTE SU640Z2
4 GB 1 GB RAM Unknown
Z2: Original memory entry

32 GB · 512GB 4GB

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 LTE SU640

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

2. Z2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. Optimus LTE SU640

    1830 mAh

  2. 2. Z2

    3000 mAh

    +1170 mAh versus Optimus LTE SU640

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 LTE SU6402. Z2

Everyday essentials
Everyday essentials — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Dimensions (HxWxD)
  • 132.9 Х 67.9 Х 10.4 mm
  • 153 Х 76 Х 8.4 mm
Weight
  • 135 g
  • 160 g
Technology
  • HD-IPS LCD
  • LTPS IPS LCD
Screen size
  • 4.5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 1 GB RAM
  • 32 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1830 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.3.5 (Gingerbread)
  • upgradable to 4.0 (Ice Cream Sandwich)
  • Android 6.0 (Marshmallow)
Chipset
  • Qualcomm MSM8660 Snapdragon S3
  • Mediatek MT6797 Helio X20 (20 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 55.8 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 61.9%
  • 71.7%
PPI /points per inch/
  • 326 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Rear camera, main
  • 8 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 16 MP
  • PDAF
Functions
  • LED flash
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 1.3 MP
  • 8 MP
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Processor CPU
  • Dual-core 1.5 GHz Scorpion
  • Deca-core (2x2.3GHz Cortex-A72
  • 4x2.0GHz Cortex-A53
  • 4x1.4GHz Cortex-A53)
Graphics processor GPU
  • Adreno 220
  • Mali-T880 MP4
Antutu 7 score * Unknown
  • 85326
General specs
General specs — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Release date
  • 2011
  • October
  • 2016
  • October
Colors
  • Black
  • White
  • Silver
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 330 EUR
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 7 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 1900 -4G - LTE 800
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • HSPA
  • LTE
  • HSPA
  • LTE
GPRS
  • No
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0 (MHL TV-out)
  • Type-C 1.0 reversible connector
Bluetooth
  • 3.0
  • A2DP
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Radio
  • No
  • FM radio
Others
  • True HD Graphic Engine
  • Dolby Mobile -Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Optimus LTE SU640, Z2.
SpecificationOptimus LTE SU640Z2
Dop
  • 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
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port