Infinix Zero 4 Plus 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: 68 g lighter

    Zero 4 Plus:
    203 g
    Optimus LTE SU640:
    135 g
  • Width

    Optimus LTE SU640: 15.1 mm narrower

    Zero 4 Plus:
    83 mm
    Optimus LTE SU640:
    67.9 mm
  • Screen diagonal

    Optimus LTE SU640: 1.48 in smaller diagonal

    Zero 4 Plus:
    5.98 in
    Optimus LTE SU640:
    4.5 in
  • Chipset

    Zero 4 Plus:
    Mediatek MT6797M Helio X20 (20 nm)
    Optimus LTE SU640:
    Qualcomm MSM8660 Snapdragon S3
  • Depth

    Zero 4 Plus: 2.1 mm thinner

    Zero 4 Plus:
    8.3 mm
    Optimus LTE SU640:
    10.4 mm
  • Height

    Optimus LTE SU640: 27.6 mm shorter

    Zero 4 Plus:
    160.5 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. Zero 4 Plus

    Height:
    160.5 mm +27.6 mm versus Optimus LTE SU640
    Width:
    83 mm +15.1 mm versus Optimus LTE SU640
    Depth:
    8.3 mm
  2. 2. Optimus LTE SU640

    Height:
    132.9 mm
    Width:
    67.9 mm
    Depth:
    10.4 mm +2.1 mm versus Zero 4 Plus

Weight

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

  1. 1. Zero 4 Plus

    203 g

    +68 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. Zero 4 Plus

    Screen diagonal:
    5.98 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    98.6 cm²
  2. 2. Optimus LTE SU640

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

Zero 4 Plus has approximately 76.6% 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 Zero 4 Plus, Optimus LTE SU640, compared at the same storage capacity.
StorageZero 4 PlusOptimus LTE SU640
4 GB Unknown 1 GB RAM
Zero 4 Plus: Original memory entry

64 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. Zero 4 Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB

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. Zero 4 Plus

    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. Zero 4 Plus2. Optimus LTE SU640

Everyday essentials
Everyday essentials — specifications for Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
Dimensions (HxWxD)
  • 160.5 Х 83 Х 8.3 mm
  • 132.9 Х 67.9 Х 10.4 mm
Weight
  • 203 g
  • 135 g
Technology
  • IPS LCD
  • HD-IPS LCD
Screen size
  • 5.98" inch
  • 4.5" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 4 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 128 GB
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Ion
  • 1830 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 2.3.5 (Gingerbread)
  • upgradable to 4.0 (Ice Cream Sandwich)
Chipset
  • Mediatek MT6797M Helio X20 (20 nm)
  • Qualcomm MSM8660 Snapdragon S3
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.6 cm2
  • 55.8 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 74.0%
  • 61.9%
PPI /points per inch/
  • 368 PPI
  • 326 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
Rear camera, main
  • 21 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 21 MP
  • f/2.0
  • OIS
  • Laser AF/ PDAF
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 13 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 13 MP
  • f/2.2
  • 1.3 MP
Performance

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

Performance — specifications for Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
Processor CPU
  • Deca-core 2.0 GHz
  • Dual-core 1.5 GHz Scorpion
Graphics processor GPU
  • Mali-T880 MP4
  • Adreno 220
Antutu 7 score *
  • 73620
Unknown
GeekBench 4 Single Core *
  • 1542
Unknown
GeekBench 4 Multi-Core *
  • 4682
Unknown
General specs
General specs — specifications for Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
Release date
  • 2017
  • March
  • 2011
  • October
Colors
  • Lilac grey
  • Champagne
  • Galaxy Blue
  • Silver purple
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 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 Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
SIM card
  • Dual SIM (Micro-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 HSDPA 850 / 1700 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) LTE band 2(1900)
  • 4(1700/2100)
  • 28(700)
  • 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 Cat4 150/50 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • No
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • WiFi Direct
  • hotspot
  • 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
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0 (MHL TV-out)
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 3.0
  • A2DP
Music and Audio
Music and Audio — specifications for Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus 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 Zero 4 Plus, Optimus LTE SU640.
SpecificationZero 4 PlusOptimus LTE SU640
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • 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