O2 XDA Comet vs Vertu Signature Touch

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: 47 g lighter

    XDA Comet:
    145 g
    Signature Touch:
    192 g
  • Width

    XDA Comet: 11 mm narrower

    XDA Comet:
    58 mm
    Signature Touch:
    69 mm
  • Screen diagonal

    XDA Comet: 2 in smaller diagonal

    XDA Comet:
    2.7 in
    Signature Touch:
    4.7 in
  • Depth

    Signature Touch: 8.3 mm thinner

    XDA Comet:
    19 mm
    Signature Touch:
    10.7 mm
  • Height

    XDA Comet: 39 mm shorter

    XDA Comet:
    106 mm
    Signature Touch:
    145 mm
  • Release year

    XDA Comet:
    2007
    Signature Touch:
    2014

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 +8.3 mm versus Signature Touch
  2. 2. Signature Touch

    Height:
    145 mm +39 mm versus XDA Comet
    Width:
    69 mm +11 mm versus XDA Comet
    Depth:
    10.7 mm

Weight

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

  1. 1. XDA Comet

    145 g

  2. 2. Signature Touch

    192 g

    +47 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. Signature Touch

    Screen diagonal:
    4.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    60.9 cm²

Signature Touch has approximately 169.7% more rectangular screen area than XDA Comet.

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.

Recorded RAM for XDA Comet, Signature Touch, compared at the same storage capacity.
StorageXDA CometSignature Touch
64 GB Unknown 2 GB RAM
XDA Comet: Original memory entry

64 MB RAM · 1 GB 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. Signature Touch

NFC:
Yes
Headphone jack:
Yes
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. Signature Touch

Everyday essentials
Everyday essentials — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Dimensions (HxWxD)
  • 106 Х 58 Х 19 mm
  • 145 Х 69 Х 10.7 mm
Weight
  • 145 g
  • 192 g
Technology
  • TFT
  • Sapphire crystal glass
Screen size
  • 2.7" inch
  • 4.7" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 1920 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 GB
  • 2 GB RAM
Memory card support
  • miniSD
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 2275 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Android 4.4.2 (KitKat)
Chipset Unknown
  • Qualcomm Snapdragon 801 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 22.6 cm2
  • 60.9 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 36.7%
  • 60.9%
PPI /points per inch/
  • 148 PPI
  • 469 PPI
Screen protection Unknown
  • Scratch-proof glass
Camera and Video
Camera and Video — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • Hasselblad certified
  • AF
Functions
  • LED flash
  • Dual-LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2.1 MP
  • Single
Specifications
  • VGA videocall camera
  • 2.1 MP
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Processor CPU
  • Intel XScale PXA 270 620 MHz
  • Quad-core 2.3 GHz Krait 400
Graphics processor GPU Unknown
  • Adreno 330
GeekBench 4 Single Core * Unknown
  • 354
GeekBench 4 Multi-Core * Unknown
  • 1174
General specs
General specs — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Release date
  • 2007
  • September
  • 2014
  • June
Colors
  • Silver
  • Jet/ Claret leather
  • pure Jet leather
  • Pure Jet Red Gold
  • Seaspray/ Damson/ Pure navy lizard
  • Jet Alligator
  • Clous De Paris
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 8290 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 6 h
  • Stand by time- Up to 380 h Talking time- Up to 15 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
SIM card
  • Mini-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1700 / 1900 / 2100 -4G - LTE band 1(2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 17(700)
  • 20(800)
  • 25(1900)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB
  • microUSB 2.0
  • USB Host
Bluetooth
  • 1.2
  • 4.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.69 W/kg (head) 1.29 W/kg (body) SAR EU - 0.49 W/kg (head)
Music and Audio
Music and Audio — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Radio
  • Stereo FM radio
  • RDS
  • No
Others
  • Handwriting recognition
  • Dolby Digital Plus audio enhancement -Bang & Olufsen -Active noise cancellation with dedicated mic
Other features
Other features — specifications for XDA Comet, Signature Touch.
SpecificationXDA CometSignature Touch
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Titanium body (forged grade 5) and luxurious calf leather covered rear panel - Also known as Vertu Signature Touch RM-980V
  • RM-980C