LG Optimus 2X vs Panasonic P81

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.

  • Screen diagonal

    Optimus 2X: 1.5 in smaller diagonal

    Optimus 2X:
    4 in
    P81:
    5.5 in
  • Release year

    Optimus 2X:
    2010
    P81:
    2014

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
    Weight:
    139 g
  2. 2. P81

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

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. P81

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

P81 has approximately 83.1% 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, P81, compared at the same storage capacity.
StorageOptimus 2XP81
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. P81

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. Optimus 2X

    1500 mAh

  2. 2. P81

    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. P81

Everyday essentials
Everyday essentials — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
Dimensions (HxWxD)
  • 123.9 Х 63.2 Х 10.9 mm
  • Х Х mm
Weight
  • 139 g
  • 0 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4" inch
  • 5.5" 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 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 2500 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • 2.3
  • upgradable to 4.0 (Ice Cream Sandwich)
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Nvidia Tegra 2 AP20H
  • Mediatek MT6592 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 83.4 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 58.2%
Unknown
PPI /points per inch/
  • 233 PPI
  • 267 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 1080p@24fps
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 1.3 MP
  • 2 MP
Performance
Performance — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core 1.7 GHz Cortex-A7
Graphics processor GPU
  • ULP GeForce
  • Mali-450MP4
General specs
General specs — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
Release date
  • 2010
  • December
  • 2014
  • June
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 220 EUR
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 7 h 50 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
SIM card
  • Mini-SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 21.1/5.76 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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 3.0
  • 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, P81.
SpecificationOptimus 2XP81
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • RDS
Other features
Other features — specifications for Optimus 2X, P81.
SpecificationOptimus 2XP81
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