O2 XDA Comet vs O2 XDA Terra

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 Comet: 23 g lighter

    XDA Comet:
    145 g
    XDA Terra:
    168 g
  • Width

    XDA Comet: 1 mm narrower

    XDA Comet:
    58 mm
    XDA Terra:
    59 mm
  • Depth

    XDA Terra: 2 mm thinner

    XDA Comet:
    19 mm
    XDA Terra:
    17 mm
  • Height

    XDA Comet: 3 mm shorter

    XDA Comet:
    106 mm
    XDA Terra:
    109 mm

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 mm versus XDA Terra
  2. 2. XDA Terra

    Height:
    109 mm +3 mm versus XDA Comet
    Width:
    59 mm +1 mm versus XDA Comet
    Depth:
    17 mm

Weight

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

  1. 1. XDA Comet

    145 g

  2. 2. XDA Terra

    168 g

    +23 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.

  1. 1. XDA Comet

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

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

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

XDA Terra: Original memory entry

64 MB RAM · 128 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. XDA Terra

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.

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. XDA Terra

Everyday essentials
Everyday essentials — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Dimensions (HxWxD)
  • 106 Х 58 Х 19 mm
  • 109 Х 59 Х 17 mm
Weight
  • 145 g
  • 168 g
Technology
  • TFT
  • TFT
Screen size
  • 2.7" inch
  • 2.7" 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
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • miniSD
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 0 mAh,
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Microsoft Windows Mobile 5.0 PocketPC
Chipset Unknown
  • TI OMAP 850
Headphone jack
  • No
  • No
Display
Display — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 22.6 cm2
  • 22.6 cm2
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 36.7%
  • 35.1%
PPI /points per inch/
  • 148 PPI
  • 148 PPI
Camera and Video
Camera and Video — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • QCIF
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance
Performance — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Processor CPU
  • Intel XScale PXA 270 620 MHz
  • 200 MHz ARM926EJ-S
General specs
General specs — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Release date
  • 2007
  • September
  • 2007
  • March
Colors
  • Silver
  • Black
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 6 h
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
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
  • Wi-Fi 802.11b/g
GPS
  • No
  • No
USB
  • miniUSB
  • 1.1
Bluetooth
  • 1.2
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Radio
  • Stereo FM radio
  • RDS
  • No
Others
  • Handwriting recognition
  • Handwriting recognition
Other features
Other features — specifications for XDA Comet, XDA Terra.
SpecificationXDA CometXDA Terra
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player
  • Pocket Office -Voice memo -MP3/AAC player HTC Herald platform