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  2. O2 XDA Comet vs T-Mobile Sidekick

O2 XDA Comet 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.

    • WeightSidekick: 17 g lighterSidekick: 128 g · XDA Comet: 145 g
    • DepthSidekick: 1 mm thinnerSidekick: 18 mm · XDA Comet: 19 mm
    • HeightXDA Comet: 13 mm shorterXDA Comet: 106 mm · Sidekick: 119 mm
    • Release year2007 / 2008XDA Comet: 2007 · 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.

    Front
    XDA Comet: 106 × 58 mm 1 Sidekick: 119 × 58 mm 2
    Side
    XDA Comet: 106 × 19 mm 1 Sidekick: 119 × 18 mm 2
    1. 1. XDA Comet
      Height
      106 mm
      Width
      58 mm
      Depth
      19 mm+1 mm versus Sidekick
      Weight
      145 g
    2. 2. Sidekick
      Height
      119 mm+13 mm versus XDA Comet
      Width
      58 mm
      Depth
      18 mm
      Weight
      128 g
    Weight

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

    1. 1. XDA Comet145 g

      +17 g versus Sidekick

    2. 2. Sidekick128 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.

    Screen size
    XDA Comet: 2.7 in, 4:3, About 22.6 cm² rectangular area 1 Sidekick: 2.6 in, 5:3, About 19.2 cm² rectangular area 2
    1. 1. XDA Comet 2.7 in · 4:3 About 22.6 cm² rectangular area
    2. 2. Sidekick 2.6 in · 5:3 About 19.2 cm² rectangular area

    XDA Comet has approximately 17.3% 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 Comet: Original memory entry

    64 MB RAM · 1 GB 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 Comet

    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.

    At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

    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 Comet2. Sidekick

    Everyday essentials
    Everyday essentials
    SpecificationXDA CometSidekick
    Dimensions (HxWxD)
    • 106 Х 58 Х 19 mm
    • 119 Х 58 Х 18 mm
    Weight
    • 145 g
    • 128 g
    Technology
    • TFT
    • TFT
    Screen size
    • 2.7" inch
    • 2.6" inch
    Screen resolution
    • 240 x 320 px
    • 240 x 400 px
    Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 64 MB RAM
    • 1 GB ROM
    • 128 MB RAM
    • 64 MB ROM
    Memory card support
    • miniSD
    • microSD (dedicated slot)
    BatteryCapacity is not battery life. No endurance test is implied.
    • 0 mAh,
    • 1030 mAh
    • Removable Li-Ion
    Operating system OS
    • Microsoft Windows Mobile 6.0 Professional
    • Danger 4.7
    Headphone jack
    • No
    • Yes
    Display
    Display
    SpecificationXDA CometSidekick
    Touchscreen
    • resistive touchscreen
    		 Unknown
    Display colors
    • 65K
    • 65K
    Screen area
    • 22.6 cm2
    • 19.2 cm2
    Screen format
    • 4:3 (height:width)
    • 5:3 (height:width)
    Screen to body ratio
    • 36.7%
    • 27.9%
    PPI /points per inch/
    • 148 PPI
    • 179 PPI
    Camera and Video
    Camera and Video
    SpecificationXDA CometSidekick
    Rear camera, main
    • 2 MP
    • Single
    • 1.3 MP
    • Single
    Camera specs
    • 2 MP
    • 1.3 MP
    Functions
    • LED flash
    		 Unknown
    Video
    • Yes
    • Yes
    Front camera, selfie
    • 0.3 MP
    • Single
    • 0 MP,
    Specifications
    • VGA videocall camera
    		 Unknown
    Performance
    Performance
    SpecificationXDA CometSidekick
    Processor CPU
    • Intel XScale PXA 270 620 MHz
    		 Unknown
    General specs
    General specs
    SpecificationXDA CometSidekick
    Release date
    • 2007
    • September
    • 2008
    • July
    Colors
    • Silver
    • Black
    Battery life
    • Stand by time- Up to 200 h Talking time- Up to 6 h
    • Stand by time- Up to 216 h Talking time- Up to 5 h
    Communication and Connectivity
    Communication and Connectivity
    SpecificationXDA CometSidekick
    SIM card
    • Mini-SIM
    • Mini-SIM
    Network
    • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
    		 Unknown
    Speed
    • HSPA
    		 Unknown
    GPRS
    • Class 10
    • Class 10
    Edge
    • Yes
    • Class 10
    Wi-Fi
    • Wi-Fi 802.11b/g
    • No
    GPS
    • No
    • No
    USB
    • miniUSB
    • miniUSB
    Bluetooth
    • 1.2
    • 2.0
    • A2DP
    Music and Audio
    Music and Audio
    SpecificationXDA CometSidekick
    Radio
    • Stereo FM radio
    • RDS
    • No
    Others
    • Handwriting recognition
    • Swivel display
    Other features
    Other features
    SpecificationXDA CometSidekick
    Dop
    • Infrared port - Pocket Office -Voice memo -MP3/AAC player
    • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input

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