O2 XDA Atom Life vs T-Mobile Sidekick

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 17 g lighter

    XDA Atom Life:
    145 g
    Sidekick:
    128 g
  • Height

    XDA Atom Life: 13 mm shorter

    XDA Atom Life:
    106 mm
    Sidekick:
    119 mm
  • Release year

    XDA Atom Life:
    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.

  1. 1. XDA Atom Life

    Height:
    106 mm
    Width:
    58 mm
    Depth:
    18 mm
  2. 2. Sidekick

    Height:
    119 mm +13 mm versus XDA Atom Life
    Width:
    58 mm
    Depth:
    18 mm

Weight

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

  1. 1. XDA Atom Life

    145 g

    +17 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 Atom Life

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

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

XDA Atom Life 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 Atom Life: 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 Atom Life

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 Atom Life

    1530 mAh

    +500 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 Atom Life2. Sidekick

Everyday essentials
Everyday essentials — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
Dimensions (HxWxD)
  • 106 Х 58 Х 18 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 memory Recorded 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)
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Danger 4.7
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
Touchscreen
  • resistive touchscreen
Unknown
Display colors Unknown
  • 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 — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
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 — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
Processor CPU
  • Intel XScale PXA 270 620 MHz
Unknown
General specs
General specs — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
Release date
  • 2007
  • January
  • 2008
  • July
Colors
  • Silver
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
Unknown
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
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 — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
Radio
  • Stereo FM radio
  • RDS
  • No
Others
  • Handwriting recognition
  • Swivel display
Other features
Other features — specifications for XDA Atom Life, Sidekick.
SpecificationXDA Atom LifeSidekick
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input