vivo NEX Dual Display vs Vodafone Smart first 7
Compare recorded specifications, size and practical differences.
Vodafone Smart first 7
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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
Smart first 7: 89 g lighter
- NEX Dual Display:
- 199 g
- Smart first 7:
- 110 g
-
Width
Smart first 7: 12.5 mm narrower
- NEX Dual Display:
- 75.3 mm
- Smart first 7:
- 62.8 mm
-
Screen diagonal
Smart first 7: 2.89 in smaller diagonal
- NEX Dual Display:
- 6.39 in
- Smart first 7:
- 3.5 in
-
Chipset
- NEX Dual Display:
- Qualcomm SDM845 Snapdragon 845 (10 nm)
- Smart first 7:
- Spreadtrum SC7731G
-
Rear camera layout
- NEX Dual Display:
- Triple
- Smart first 7:
- Single
-
Depth
NEX Dual Display: 3.9 mm thinner
- NEX Dual Display:
- 8.1 mm
- Smart first 7:
- 12 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. NEX Dual Display
- Height:
- 157.2 mm +42.8 mm versus Smart first 7
- Width:
- 75.3 mm +12.5 mm versus Smart first 7
- Depth:
- 8.1 mm
2. Smart first 7
- Height:
- 114.4 mm
- Width:
- 62.8 mm
- Depth:
- 12 mm +3.9 mm versus NEX Dual Display
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. NEX Dual Display
- Screen diagonal:
- 6.39 in
- Aspect ratio (height:width):
- 19.5:9
- Approximate rectangular screen area:
- 100.2 cm²
2. Smart first 7
- Screen diagonal:
- 3.5 in
- Aspect ratio (height:width):
- 3:2
- Approximate rectangular screen area:
- 36.5 cm²
NEX Dual Display has approximately 174.8% more rectangular screen area than Smart first 7.
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 | NEX Dual Display | Smart first 7 |
|---|---|---|
| 128 GB | 10 GB RAM | Unknown |
Smart first 7: Original memory entry
4 GB · 512 MB RAM
Practical features
Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.
1. NEX Dual Display
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- No
2. Smart first 7
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 64 GB (dedicated slot)
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 | NEX Dual Display | Smart first 7 |
|---|---|---|
| Dimensions (HxWxD) |
|
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| Weight |
|
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| Technology |
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| Screen size |
|
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| Screen resolution |
|
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| Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. |
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| Memory card support |
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| Battery Capacity is not battery life. No endurance test is implied. |
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| Operating system OS |
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| Chipset |
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| Headphone jack |
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Display
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| Touchscreen |
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| Display colors |
|
Unknown |
| 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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Camera and Video
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| Rear camera, main |
|
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| Camera specs |
|
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| Functions |
|
Unknown |
| Video |
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| Front camera, selfie |
|
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| Specifications |
|
Unknown |
Performance
Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| Processor CPU |
|
|
| Graphics processor GPU |
|
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| Antutu 8 score * |
|
Unknown |
General specs
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
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| Battery life | Unknown |
|
Communication and Connectivity
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| SIM card |
|
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| Network |
|
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| Speed |
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| GPRS |
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| Edge |
|
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| Wi-Fi |
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| GPS |
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| USB |
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| Bluetooth |
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Music and Audio
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| Radio |
|
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| Others |
|
Unknown |
Other features
| Specification | NEX Dual Display | Smart first 7 |
|---|---|---|
| Dop |
|
|


