LG Optimus Z vs T-Mobile Sidekick

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

    Sidekick: 7 g lighter

    Optimus Z:
    135 g
    Sidekick:
    128 g
  • Width

    Optimus Z: 1.1 mm narrower

    Optimus Z:
    56.9 mm
    Sidekick:
    58 mm
  • Screen diagonal

    Sidekick: 0.9 in smaller diagonal

    Optimus Z:
    3.5 in
    Sidekick:
    2.6 in
  • Depth

    Optimus Z: 7 mm thinner

    Optimus Z:
    11 mm
    Sidekick:
    18 mm
  • Release year

    Optimus Z:
    2010
    Sidekick:
    2008

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 Z

    Height:
    117.9 mm
    Width:
    56.9 mm
    Depth:
    11 mm
  2. 2. Sidekick

    Height:
    119 mm
    Width:
    58 mm +1.1 mm versus Optimus Z
    Depth:
    18 mm +7 mm versus Optimus Z

Weight

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

  1. 1. Optimus Z

    135 g

    +7 g versus Sidekick

  2. 2. Sidekick

    128 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. Optimus Z

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

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

Optimus Z has approximately 97.2% more rectangular screen area than Sidekick.

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.

Sidekick: Original memory entry

128 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 Z

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 4 GB included

2. Sidekick

NFC:
Unknown
Headphone jack:
Yes
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 Z

    1350 mAh

    +320 mAh versus Sidekick

  2. 2. Sidekick

    1030 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. Optimus Z2. Sidekick

Everyday essentials
Everyday essentials — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Dimensions (HxWxD)
  • 117.9 Х 56.9 Х 11 mm
  • 119 Х 58 Х 18 mm
Weight
  • 135 g
  • 128 g
Technology
  • TFT
  • TFT
Screen size
  • 3.5" inch
  • 2.6" inch
Screen resolution
  • 480 x 640 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 4 GB included
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Removable Li-Ion
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.1 (Eclair)
  • upgradable to 2.2 (Froyo)
  • Danger 4.7
Chipset
  • Qualcomm QSD8250 Snapdragon S1
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 256K
  • 65K
Screen area
  • 37.9 cm2
  • 19.2 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 56.5%
  • 27.9%
PPI /points per inch/
  • 229 PPI
  • 179 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Rear camera, main
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 1.3 MP
Video
  • 720p
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Processor CPU
  • 1.0 GHz Scorpion
Unknown
Graphics processor GPU
  • Adreno 200
Unknown
General specs
General specs — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Release date
  • 2010
  • April
  • 2008
  • July
Colors
  • Black
  • White
  • Pink
  • Black
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h 10 min
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 7.2/0.384 Mbps
Unknown
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • DLNA
  • hotspot (Android 2.2)
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • miniUSB
Bluetooth
  • 2.1
  • A2DP
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Radio
  • No
  • No
Others
  • Dolby Mobile
  • Swivel display
Other features
Other features — specifications for Optimus Z, Sidekick.
SpecificationOptimus ZSidekick
Dop
  • Sensors Accelerometer
  • proximity
  • compass - On-screen-phone function -Drag & Shake file sharing -TV Tuner (T-DMB) -HDMI port -MP3/WMA/AAC player -DivX/MP4/H.263 player -Organizer -Document viewer -Voice memo -Predictive text input - For South Korea Also known as LG KU9500
  • LG SU950
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input