O2 XDA phone 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

    XDA phone: 23 g lighter

    XDA phone:
    105 g
    Sidekick:
    128 g
  • Width

    XDA phone: 12 mm narrower

    XDA phone:
    46 mm
    Sidekick:
    58 mm
  • Screen diagonal

    XDA phone: 0.4 in smaller diagonal

    XDA phone:
    2.2 in
    Sidekick:
    2.6 in
  • Depth

    XDA phone: 0.5 mm thinner

    XDA phone:
    17.5 mm
    Sidekick:
    18 mm
  • Height

    XDA phone: 12 mm shorter

    XDA phone:
    107 mm
    Sidekick:
    119 mm
  • Release year

    XDA phone:
    2005
    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 phone

    Height:
    107 mm
    Width:
    46 mm
    Depth:
    17.5 mm
  2. 2. Sidekick

    Height:
    119 mm +12 mm versus XDA phone
    Width:
    58 mm +12 mm versus XDA phone
    Depth:
    18 mm +0.5 mm versus XDA phone

Weight

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

  1. 1. XDA phone

    105 g

  2. 2. Sidekick

    128 g

    +23 g versus XDA phone

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 phone

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

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

Sidekick has approximately 28.4% more rectangular screen area than XDA phone.

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 phone: Original memory entry

64 MB RAM · 64 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 phone

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

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 phone

    1150 mAh

    +120 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 phone2. Sidekick

Everyday essentials
Everyday essentials — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
Dimensions (HxWxD)
  • 107 Х 46 Х 17.5 mm
  • 119 Х 58 Х 18 mm
Weight
  • 105 g
  • 128 g
Technology
  • TFT
  • TFT
Screen size
  • 2.2" 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.
  • 64 MB RAM
  • 64 MB ROM
  • 128 MB RAM
  • 64 MB ROM
Memory card support
  • miniSD
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1150 mAh
  • Removable Li-Po
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 Smartphone
  • Danger 4.7
Chipset
  • TI OMAP 850
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
Display colors
  • 65K
  • 65K
Screen area
  • 15 cm2
  • 19.2 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 30.5%
  • 27.9%
PPI /points per inch/
  • 182 PPI
  • 179 PPI
Camera and Video
Camera and Video — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
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,
Specifications
  • No
Unknown
Performance
Performance — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
Processor CPU
  • 200 MHz ARM926EJ-S
Unknown
General specs
General specs — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
Release date
  • 2005
  • September
  • 2008
  • July
Colors
  • Silver
  • Black
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 5 h
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
SIM card
  • Mini-SIM
  • Mini-SIM
GPRS
  • Class 10
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • No
  • No
GPS
  • No
  • No
USB
  • Proprietary
  • miniUSB
Bluetooth
  • 1.2
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
Radio
  • No
  • No
Others Unknown
  • Swivel display
Other features
Other features — specifications for XDA phone, Sidekick.
SpecificationXDA phoneSidekick
Dop
  • Infrared port - Microsoft ActiveSync -MP3/AAC player -Predictive text input - Produced by HTC. Functionally identical to i-mate SP4m.
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input