Allview V4 Viper Pro vs Samsung Galaxy A21
Compare recorded specifications, size and practical differences.
Samsung Galaxy A21
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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.
-
Display technology
OLED versus LCD
- V4 Viper Pro:
- LCD
- Galaxy A21:
- OLED
-
Screen diagonal
Galaxy A21: 0.3 in smaller diagonal
- V4 Viper Pro:
- 6.8 in
- Galaxy A21:
- 6.5 in
-
Memory variants
At 32 GB storage
- V4 Viper Pro:
- 2 GB RAM
- Galaxy A21:
- 3 GB RAM
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. V4 Viper Pro
- Height:
- 171 mm
- Width:
- 82 mm
- Depth:
- 8.8 mm
- Weight:
- 191.6 g
2. Galaxy A21
- Height:
- Unknown
- Width:
- Unknown
- Depth:
- Unknown
- Weight:
- Unknown
Unavailable dimensions are omitted from the drawing.
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. V4 Viper Pro
- Screen diagonal:
- 6.8 in
- Aspect ratio (height:width):
- 19:9
- Approximate rectangular screen area:
- 115.4 cm²
2. Galaxy A21
- Screen diagonal:
- 6.5 in
- Aspect ratio (height:width):
- 20:9
- Approximate rectangular screen area:
- 102 cm²
V4 Viper Pro has approximately 13.1% more rectangular screen area than Galaxy A21.
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 | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| 32 GB Recorded for all phones | 2 GB RAM | 3 GB 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. V4 Viper Pro
- NFC:
- See details Super AMOLED
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 128 GB (uses shared SIM slot)
2. Galaxy A21
- NFC:
- See details Yes (market/region dependent)
- Headphone jack:
- Yes
- Memory card support:
- See details microSDXC (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.
1. V4 Viper Pro2. Galaxy A21
Everyday essentials
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| 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 |
|
|
| Headphone jack |
|
|
Display
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| Touchscreen |
|
|
| Display colors |
|
|
| Screen area |
|
|
| Screen format |
|
|
| Screen to body ratio |
|
Unknown |
| PPI /points per inch/ |
|
|
Camera and Video
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
|
| Functions |
|
|
| Video |
|
|
| Front camera, selfie |
|
|
| Specifications |
|
|
Performance
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| Processor CPU |
|
Unknown |
| Graphics processor GPU |
|
Unknown |
General specs
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
|
| Body build | Unknown |
|
Communication and Connectivity
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| SIM card |
|
|
| Network |
|
|
| Speed |
|
|
| GPRS |
|
|
| Edge |
|
|
| Wi-Fi |
|
|
| GPS |
|
|
| USB |
|
|
| Bluetooth |
|
|
| Harmful irradiation |
|
Unknown |
Music and Audio
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| Radio |
|
|
Other features
| Specification | V4 Viper Pro | Galaxy A21 |
|---|---|---|
| Dop |
|
|
