LG Optimus 2X vs Microsoft Lumia 640 LTE

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 2X: 6 g lighter

    Optimus 2X:
    139 g
    Lumia 640 LTE:
    145 g
  • Width

    Optimus 2X: 9 mm narrower

    Optimus 2X:
    63.2 mm
    Lumia 640 LTE:
    72.2 mm
  • Screen diagonal

    Optimus 2X: 1 in smaller diagonal

    Optimus 2X:
    4 in
    Lumia 640 LTE:
    5 in
  • Depth

    Lumia 640 LTE: 2.1 mm thinner

    Optimus 2X:
    10.9 mm
    Lumia 640 LTE:
    8.8 mm
  • Height

    Optimus 2X: 17.4 mm shorter

    Optimus 2X:
    123.9 mm
    Lumia 640 LTE:
    141.3 mm
  • Release year

    Optimus 2X:
    2010
    Lumia 640 LTE:
    2015

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 2X

    Height:
    123.9 mm
    Width:
    63.2 mm
    Depth:
    10.9 mm +2.1 mm versus Lumia 640 LTE
  2. 2. Lumia 640 LTE

    Height:
    141.3 mm +17.4 mm versus Optimus 2X
    Width:
    72.2 mm +9 mm versus Optimus 2X
    Depth:
    8.8 mm

Weight

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

  1. 1. Optimus 2X

    139 g

  2. 2. Lumia 640 LTE

    145 g

    +6 g versus Optimus 2X

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 2X

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Lumia 640 LTE

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

Lumia 640 LTE has approximately 51.3% more rectangular screen area than Optimus 2X.

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 2X, Lumia 640 LTE, compared at the same storage capacity.
StorageOptimus 2XLumia 640 LTE
8 GB Unknown 1 GB RAM
Optimus 2X: Original memory entry

8 GB · 512 MB RAM

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 2X

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

2. Lumia 640 LTE

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Optimus 2X

    1500 mAh

  2. 2. Lumia 640 LTE

    2500 mAh

    +1000 mAh versus Optimus 2X

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 2X2. Lumia 640 LTE

Everyday essentials
Everyday essentials — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Dimensions (HxWxD)
  • 123.9 Х 63.2 Х 10.9 mm
  • 141.3 Х 72.2 Х 8.8 mm
Weight
  • 139 g
  • 145 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4" inch
  • 5" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 2500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • 2.3
  • upgradable to 4.0 (Ice Cream Sandwich)
  • Microsoft Windows Phone 8.1
  • upgradable to Microsoft Windows 10
Chipset
  • Nvidia Tegra 2 AP20H
  • Qualcomm MSM8926 Snapdragon 400 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 58.2%
  • 67.6%
PPI /points per inch/
  • 233 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • f/2.2
  • 28mm (wide)
  • 1/4''
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 1080p@24fps
  • 720p@30fps
  • 720p
Front camera, selfie
  • 1.3 MP
  • Single
  • 1 MP
  • Single
Specifications
  • 1.3 MP
  • 1 MP
Performance
Performance — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • ULP GeForce
  • Adreno 305
General specs
General specs — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Release date
  • 2010
  • December
  • 2015
  • March
Colors
  • Black
  • Glossy cyan
  • Orange
  • White
  • Matte Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 7 h 50 min
  • Stand by time- Up to 864 h (2G) / Up to 864 h (3G) Talking time- Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
SIM card
  • Mini-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 - T-Mobile -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) LTE band 1(2100)
  • 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 12(700)
  • 17(700) - T-Mobile
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.27 W/kg (head) 0.62 W/kg (body) SAR EU - 0.55 W/kg (head) 0.90 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others Unknown
  • ClearBlack display
Other features
Other features — specifications for Optimus 2X, Lumia 640 LTE.
SpecificationOptimus 2XLumia 640 LTE
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - HDMI port -DivX/Xvid/MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Document editor -Organizer -Voice memo/dial/commands -Predictive text input - Also known as LG P990 Star
  • LG P990 Optimus Speed
  • Sensors Accelerometer
  • proximity
  • compass