O2 XDA Comet vs Vertu Signature Touch
Compare recorded specifications, size and practical differences.
Vertu Signature Touch
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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. XDA Comet
- Height:
- 106 mm
- Width:
- 58 mm
- Depth:
- 19 mm +8.3 mm versus Signature Touch
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.
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. XDA Comet
- Screen diagonal:
- 2.7 in
- Aspect ratio (height:width):
- 4:3
- Approximate rectangular screen area:
- 22.6 cm²
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.
| Storage | XDA Comet | Signature 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.
Everyday essentials
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| Dimensions (HxWxD) |
|
|
| Weight |
|
|
| Technology |
|
|
| Screen size |
|
|
| Screen resolution |
|
|
| Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. |
|
|
| Memory card support |
|
|
| Battery Capacity is not battery life. No endurance test is implied. |
|
|
| Operating system OS |
|
|
| Chipset | Unknown |
|
| NFC | Unknown |
|
| Headphone jack |
|
|
Display
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| Touchscreen |
|
|
| Display colors |
|
|
| Screen area |
|
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| Screen format |
|
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| Screen to body ratio |
|
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| PPI /points per inch/ |
|
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| Screen protection | Unknown |
|
Camera and Video
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
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| Functions |
|
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| Video |
|
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| Front camera, selfie |
|
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| Specifications |
|
|
Performance
Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.
General specs
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. | Unknown |
|
| Battery life |
|
|
Communication and Connectivity
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| SIM card |
|
|
| Network |
|
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| Speed |
|
|
| GPRS |
|
|
| Edge |
|
|
| Wi-Fi |
|
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| GPS |
|
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| USB |
|
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| Bluetooth |
|
|
| Harmful irradiation | Unknown |
|
Music and Audio
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| Radio |
|
|
| Others |
|
|
Other features
| Specification | XDA Comet | Signature Touch |
|---|---|---|
| Dop |
|
|



