O2 XDA Comet vs Siemens SX45

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

    XDA Comet: 185 g lighter

    XDA Comet:
    145 g
    SX45:
    330 g
  • Width

    XDA Comet: 29 mm narrower

    XDA Comet:
    58 mm
    SX45:
    87 mm
  • Depth

    XDA Comet: 7 mm thinner

    XDA Comet:
    19 mm
    SX45:
    26 mm
  • Height

    XDA Comet: 28 mm shorter

    XDA Comet:
    106 mm
    SX45:
    134 mm
  • Release year

    XDA Comet:
    2007
    SX45:
    2001

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 Comet

    Height:
    106 mm
    Width:
    58 mm
    Depth:
    19 mm
  2. 2. SX45

    Height:
    134 mm +28 mm versus XDA Comet
    Width:
    87 mm +29 mm versus XDA Comet
    Depth:
    26 mm +7 mm versus XDA Comet

Weight

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

  1. 1. XDA Comet

    145 g

  2. 2. SX45

    330 g

    +185 g versus XDA Comet

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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. XDA Comet

    Screen diagonal:
    2.7 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    22.6 cm²
  2. 2. SX45

    SX45: Screen geometry unavailable or conflicting.

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

SX45: Original memory entry

32 MB

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. SX45

NFC:
Unknown
Headphone jack:
No
Memory card support:
No

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. SX45

Everyday essentials
Everyday essentials — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Dimensions (HxWxD)
  • 106 Х 58 Х 19 mm
  • 134 Х 87 Х 26 mm
Weight
  • 145 g
  • 330 g
Technology
  • TFT
  • TFT
Screen size
  • 2.7" inch
  • 0" inch
Screen resolution
  • 240 x 320 px
  • 240 x 320 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
  • 32 MB
Memory card support
  • miniSD
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 1550 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Microsoft Windows CE 3.0 for PocketPC
Headphone jack
  • No
  • No
Display
Display — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 22.6 cm2
Unknown
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 36.7%
Unknown
PPI /points per inch/
  • 148 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Rear camera, main
  • 2 MP
  • Single
  • 0 MP,
Camera specs
  • 2 MP
Unknown
Functions
  • LED flash
Unknown
Video
  • Yes
Unknown
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance
Performance — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Processor CPU
  • Intel XScale PXA 270 620 MHz
  • 64-bit NEC VR4122 150 MHz
General specs
General specs — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Release date
  • 2007
  • September
  • 2001
Colors
  • Silver
Unknown
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 6 h
  • Stand by time- Up to 150 h Talking time- Up to 2 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Unknown
Speed
  • HSPA
Unknown
GPRS
  • Class 10
  • No
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11b/g
  • No
GPS
  • No
  • No
USB
  • miniUSB
Unknown
Bluetooth
  • 1.2
  • No
Music and Audio
Music and Audio — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Radio
  • Stereo FM radio
  • RDS
  • No
Others
  • Handwriting recognition
  • 57.6 mm x 76.8 mm -0.24 mm pixel pitch
Other features
Other features — specifications for XDA Comet, SX45.
SpecificationXDA CometSX45
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player
  • Infrared port - Full PocketPC functionality -Media player (MP3) - PDA + mobile phone