i-mate JAM Black 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
JAM Black: 32 g lighter
- JAM Black:
- 160 g
- Signature Touch:
- 192 g
-
Width
JAM Black: 11 mm narrower
- JAM Black:
- 58 mm
- Signature Touch:
- 69 mm
-
Screen diagonal
JAM Black: 1.9 in smaller diagonal
- JAM Black:
- 2.8 in
- Signature Touch:
- 4.7 in
-
Depth
Signature Touch: 7.3 mm thinner
- JAM Black:
- 18 mm
- Signature Touch:
- 10.7 mm
-
Height
JAM Black: 37 mm shorter
- JAM Black:
- 108 mm
- Signature Touch:
- 145 mm
-
Release year
- JAM Black:
- 2005
- 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. JAM Black
- Height:
- 108 mm
- Width:
- 58 mm
- Depth:
- 18 mm +7.3 mm versus Signature Touch
2. Signature Touch
- Height:
- 145 mm +37 mm versus JAM Black
- Width:
- 69 mm +11 mm versus JAM Black
- 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. JAM Black
- Screen diagonal:
- 2.8 in
- Aspect ratio (height:width):
- 4:3
- Approximate rectangular screen area:
- 24.3 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 150.8% more rectangular screen area than JAM Black.
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 | JAM Black | Signature Touch |
|---|---|---|
| 64 GB | Unknown | 2 GB RAM |
JAM Black: Original memory entry
128 MB RAM · 64 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. JAM Black
- NFC:
- Unknown
- Headphone jack:
- No
- Memory card support:
- See details SDIO/MMC
2. Signature Touch
- NFC:
- Yes
- Headphone jack:
- Yes
- Memory card support:
- No
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.
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 | JAM Black | 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 | JAM Black | Signature Touch |
|---|---|---|
| Touchscreen |
|
|
| Display colors |
|
|
| Screen area |
|
|
| Screen format |
|
|
| Screen to body ratio |
|
|
| PPI /points per inch/ |
|
|
| Screen protection | Unknown |
|
Camera and Video
| Specification | JAM Black | Signature Touch |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
|
| Functions | Unknown |
|
| Video |
|
|
| Front camera, selfie |
|
|
| Specifications | Unknown |
|
Performance
Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.
General specs
| Specification | JAM Black | Signature Touch |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
|
| Battery life | Unknown |
|
Communication and Connectivity
| Specification | JAM Black | Signature Touch |
|---|---|---|
| SIM card |
|
|
| Network | Unknown |
|
| Speed | Unknown |
|
| GPRS |
|
|
| Edge |
|
|
| Wi-Fi |
|
|
| GPS |
|
|
| USB |
|
|
| Bluetooth |
|
|
| Harmful irradiation | Unknown |
|
Music and Audio
| Specification | JAM Black | Signature Touch |
|---|---|---|
| Radio |
|
|
| Others |
|
|
Other features
| Specification | JAM Black | Signature Touch |
|---|---|---|
| Dop |
|
|



