O2 XDA Atom vs O2 XDA Serra

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 Atom: 25 g lighter

    XDA Atom:
    140 g
    XDA Serra:
    165 g
  • Width

    XDA Serra: 7 mm narrower

    XDA Atom:
    58 mm
    XDA Serra:
    51 mm
  • Release year

    XDA Atom:
    2005
    XDA Serra:
    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

    Height:
    102 mm
    Width:
    58 mm +7 mm versus XDA Serra
    Depth:
    18.5 mm
  2. 2. XDA Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm

Weight

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

  1. 1. XDA Atom

    140 g

  2. 2. XDA Serra

    165 g

    +25 g versus XDA Atom

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

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

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²

XDA Serra has approximately 7.5% more rectangular screen area than XDA Atom.

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: Original memory entry

64 MB RAM · 128 MB ROM

XDA Serra: Original memory entry

288 MB RAM · 512 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

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

2. XDA Serra

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. XDA Atom

    1530 mAh

    +190 mAh versus XDA Serra

  2. 2. XDA Serra

    1340 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 Atom2. XDA Serra

Everyday essentials
Everyday essentials — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Dimensions (HxWxD)
  • 102 Х 58 Х 18.5 mm
  • 102 Х 51 Х 18.1 mm
Weight
  • 140 g
  • 165 g
Technology
  • TFT
  • TFT
Screen size
  • 2.7" inch
  • 2.8" inch
Screen resolution
  • 240 x 320 px
  • 480 x 640 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 128 MB ROM
  • 288 MB RAM
  • 512 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
  • 1340 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Microsoft Windows Mobile 6.1 Professional
Chipset Unknown
  • Qualcomm MSM7201A
Headphone jack
  • No
  • No
Display
Display — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors Unknown
  • 65K
Screen area
  • 22.6 cm2
  • 24.3 cm2
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 38.2%
  • 46.7%
PPI /points per inch/
  • 148 PPI
  • 286 PPI
Camera and Video
Camera and Video — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Rear camera, main
  • 2 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 2 MP
  • 3.15 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA videocall camera
Performance
Performance — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Processor CPU
  • Intel PXA272 416 MHz
  • 528 MHz ARM 11
Graphics processor GPU Unknown
  • Adreno 130
General specs
General specs — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Release date
  • 2005
  • November
  • 2008
  • July
Colors
  • Silver
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
Unknown
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 5 h 30 min
  • Stand by time- Up to 406 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
SIM card
  • Mini-SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 7.2/0.384 Mbps
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11b
  • Wi-Fi 802.11 b/g
GPS
  • No
  • Yes
  • with A-GPS
USB
  • miniUSB
  • miniUSB
Bluetooth
  • 1.2
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others
  • Handwriting recognition
  • Handwriting recognition
Other features
Other features — specifications for XDA Atom, XDA Serra.
SpecificationXDA AtomXDA Serra
Dop
  • Infrared port - Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player - Produced by Quanta Computer. Functionally identical to HP iPAQ rw6815
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input