O2 XDA IIi 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: 62 g lighter

    XDA IIi:
    190 g
    Sidekick:
    128 g
  • Width

    Sidekick: 12 mm narrower

    XDA IIi:
    70 mm
    Sidekick:
    58 mm
  • Screen diagonal

    Sidekick: 0.9 in smaller diagonal

    XDA IIi:
    3.5 in
    Sidekick:
    2.6 in
  • Depth

    Sidekick: 1 mm thinner

    XDA IIi:
    19 mm
    Sidekick:
    18 mm
  • Height

    Sidekick: 11 mm shorter

    XDA IIi:
    130 mm
    Sidekick:
    119 mm
  • Release year

    XDA IIi:
    2004
    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. XDA IIi

    Height:
    130 mm +11 mm versus Sidekick
    Width:
    70 mm +12 mm versus Sidekick
    Depth:
    19 mm +1 mm versus Sidekick
  2. 2. Sidekick

    Height:
    119 mm
    Width:
    58 mm
    Depth:
    18 mm

Weight

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

  1. 1. XDA IIi

    190 g

    +62 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. XDA IIi

    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

XDA IIi 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.

XDA IIi: Original memory entry

128 MB RAM · 96 MB ROM

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. XDA IIi

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

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. XDA IIi

    1200 mAh

    +170 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. XDA IIi2. Sidekick

Everyday essentials
Everyday essentials — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Dimensions (HxWxD)
  • 130 Х 70 Х 19 mm
  • 119 Х 58 Х 18 mm
Weight
  • 190 g
  • 128 g
Technology
  • TFT
  • TFT
Screen size
  • 3.5" inch
  • 2.6" 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.
  • 128 MB RAM
  • 96 MB ROM
  • 128 MB RAM
  • 64 MB ROM
Memory card support
  • MMC/SDIO
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Po
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 2003 SE PocketPC
  • Danger 4.7
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Touchscreen
  • resistive touchscreen
Unknown
Display colors
  • 65K
  • 65K
Screen area
  • 37.9 cm2
  • 19.2 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 41.7%
  • 27.9%
PPI /points per inch/
  • 114 PPI
  • 179 PPI
Camera and Video
Camera and Video — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Rear camera, main
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 1.3 MP
  • 1.3 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Processor CPU
  • Intel Xscale PXA272 520 MHz
Unknown
General specs
General specs — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Release date
  • 2004
  • Q4
  • 2008
  • July
Colors Unknown
  • Black
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 3 h 30 min
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
SIM card
  • Mini-SIM
  • Mini-SIM
GPRS
  • Class 10
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • Wi-Fi 802.11b
  • No
GPS
  • No
  • No
USB
  • Proprietary
  • miniUSB
Bluetooth
  • Yes
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Radio
  • No
  • No
Others
  • Handwriting recognition
  • Swivel display
Other features
Other features — specifications for XDA IIi, Sidekick.
SpecificationXDA IIiSidekick
Dop
  • Infrared port - Pocket Office -MP3/MP4 player -PDF
  • PPT viewer -Voice memo - Produced by HTC. Functionally identical to Qtek 2020i.
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input