Sendo X 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

    X: 42 g lighter

    X:
    120 g
    Sidekick LX:
    162 g
  • Width

    X: 11 mm narrower

    X:
    49 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    X: 0.8 in smaller diagonal

    X:
    2.2 in
    Sidekick LX:
    3 in
  • Depth

    Sidekick LX: 1 mm thinner

    X:
    23 mm
    Sidekick LX:
    22 mm
  • Height

    X: 19.5 mm shorter

    X:
    110 mm
    Sidekick LX:
    129.5 mm
  • Release year

    X:
    2003
    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. X

    Height:
    110 mm
    Width:
    49 mm
    Depth:
    23 mm +1 mm versus Sidekick LX
  2. 2. Sidekick LX

    Height:
    129.5 mm +19.5 mm versus X
    Width:
    60 mm +11 mm versus X
    Depth:
    22 mm

Weight

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

  1. 1. X

    120 g

  2. 2. Sidekick LX

    162 g

    +42 g versus X

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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. X

    X: Screen geometry unavailable or conflicting.

  2. 2. Sidekick LX

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

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.

X: Original memory entry

32 MB

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. X

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details MMC/SD

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. X

    1050 mAh

  2. 2. Sidekick LX

    1540 mAh

    +490 mAh versus X

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. X2. Sidekick LX

Everyday essentials
Everyday essentials — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Dimensions (HxWxD)
  • 110 Х 49 Х 23 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 120 g
  • 162 g
Technology
  • TFT
  • TFT
Screen size
  • 2.2" inch
  • 3" inch
Screen resolution
  • 176 x 220 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 MB
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • MMC/SD
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Po
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian 6.1
  • Series 60 v1.0 UI
  • Danger OS
Chipset
  • TI OMAP 5910
Unknown
Headphone jack
  • No
  • No
Display
Display — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Display colors
  • 65K
  • 65K
Screen area
  • 15.2 cm2
  • 25.6 cm2
Screen format Unknown
  • 5:3 (height:width)
Screen to body ratio
  • 28.3%
  • 33.0%
PPI /points per inch/
  • 0 PPI
  • 155 PPI
Camera and Video
Camera and Video — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Rear camera, main
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Camera specs Unknown
  • 1.3 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Processor CPU
  • 120 MHz ARM925T
Unknown
General specs
General specs — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Release date
  • 2003
  • Q4
  • 2007
  • September
Colors Unknown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 160 EUR
Battery life
  • Stand by time- Up to 170 h Talking time- Up to 7 h
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Communication and Connectivity
Communication and Connectivity — specifications for X, Sidekick LX.
SpecificationXSidekick LX
SIM card
  • Mini-SIM
  • Mini-SIM
GPRS
  • Class 8
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • No
  • No
GPS
  • No
  • No
USB
  • Proprietary
  • Proprietary
Bluetooth
  • 1.1
  • 2.0
Harmful irradiation Unknown
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Radio
  • No
  • No
Other features
Other features — specifications for X, Sidekick LX.
SpecificationXSidekick LX
Dop
  • Infrared port - MP4/MP3 player -Sync ML
  • MP3/WMA audio player -MP4 player -Voice memo