LG Optimus L3 E400 vs T-Mobile Sidekick LX

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 L3 E400: 52 g lighter

    Optimus L3 E400:
    110 g
    Sidekick LX:
    162 g
  • Width

    Sidekick LX: 1.6 mm narrower

    Optimus L3 E400:
    61.6 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    Sidekick LX: 0.2 in smaller diagonal

    Optimus L3 E400:
    3.2 in
    Sidekick LX:
    3 in
  • Depth

    Optimus L3 E400: 10.1 mm thinner

    Optimus L3 E400:
    11.9 mm
    Sidekick LX:
    22 mm
  • Height

    Optimus L3 E400: 26.9 mm shorter

    Optimus L3 E400:
    102.6 mm
    Sidekick LX:
    129.5 mm
  • Release year

    Optimus L3 E400:
    2012
    Sidekick LX:
    2007

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 L3 E400

    Height:
    102.6 mm
    Width:
    61.6 mm +1.6 mm versus Sidekick LX
    Depth:
    11.9 mm
  2. 2. Sidekick LX

    Height:
    129.5 mm +26.9 mm versus Optimus L3 E400
    Width:
    60 mm
    Depth:
    22 mm +10.1 mm versus Optimus L3 E400

Weight

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

  1. 1. Optimus L3 E400

    110 g

  2. 2. Sidekick LX

    162 g

    +52 g versus Optimus L3 E400

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 L3 E400

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    31.7 cm²
  2. 2. Sidekick LX

    Screen diagonal:
    3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    25.6 cm²

Optimus L3 E400 has approximately 23.8% more rectangular screen area than Sidekick LX.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Optimus L3 E400: Original memory entry

1 GB · 384 MB RAM

Sidekick LX: Original memory entry

64 MB RAM · 64 MB ROM

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 L3 E400

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

2. Sidekick LX

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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 L3 E400

    1500 mAh

  2. 2. Sidekick LX

    1540 mAh

    +40 mAh versus Optimus L3 E400

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 L3 E4002. Sidekick LX

Everyday essentials
Everyday essentials — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Dimensions (HxWxD)
  • 102.6 Х 61.6 Х 11.9 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 110 g
  • 162 g
Technology
  • TFT
  • TFT
Screen size
  • 3.2" inch
  • 3" inch
Screen resolution
  • 240 x 320 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 1 GB
  • 384 MB RAM
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.3.6 (Gingerbread)
  • Danger OS
Headphone jack
  • Yes
  • No
Display
Display — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 256K
  • 65K
Screen area
  • 31.7 cm2
  • 25.6 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 50.2%
  • 33.0%
PPI /points per inch/
  • 125 PPI
  • 155 PPI
Camera and Video
Camera and Video — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Rear camera, main
  • 3.15 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 3.15 MP
  • 1.3 MP
Video
  • 480p@24fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance

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

Performance — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Processor CPU
  • 800 MHz
Unknown
Graphics processor GPU
  • Adreno 200
Unknown
Antutu 7 score *
  • 2430
Unknown
General specs
General specs — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Release date
  • 2012
  • January
  • 2007
  • September
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 160 EUR
Battery life
  • Stand by time- Up to 600 h (2G) / Up to 600 h (3G) Talking time- Up to 12 h 30 min (2G) / Up to 10 h (3G)
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Communication and Connectivity
Communication and Connectivity — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 3.6/0.384 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • DLNA
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 3.0
  • A2DP
  • 2.0
Harmful irradiation
  • SAR EU - 1.10 W/kg (head) 0.52 W/kg (body)
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Radio
  • Stereo FM radio
  • No
Other features
Other features — specifications for Optimus L3 E400, Sidekick LX.
SpecificationOptimus L3 E400Sidekick LX
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Document viewer -Organizer -Voice memo -Predictive text input
  • MP3/WMA audio player -MP4 player -Voice memo