LG Optimus Black (White version) vs Xiaomi Redmi 4a
Compare recorded specifications, size and practical differences.
Xiaomi Redmi 4a
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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
Optimus Black (White version): 22.5 g lighter
- Optimus Black (White version):
- 109 g
- Redmi 4a:
- 131.5 g
-
Width
Optimus Black (White version): 6.4 mm narrower
- Optimus Black (White version):
- 64 mm
- Redmi 4a:
- 70.4 mm
-
Screen diagonal
Optimus Black (White version): 1 in smaller diagonal
- Optimus Black (White version):
- 4 in
- Redmi 4a:
- 5 in
-
Chipset
- Optimus Black (White version):
- TI OMAP 3630
- Redmi 4a:
- Qualcomm MSM8917 Snapdragon 425 (28 nm)
-
Depth
Redmi 4a: 0.7 mm thinner
- Optimus Black (White version):
- 9.2 mm
- Redmi 4a:
- 8.5 mm
-
Height
Optimus Black (White version): 17.9 mm shorter
- Optimus Black (White version):
- 122 mm
- Redmi 4a:
- 139.9 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. Optimus Black (White version)
- Height:
- 122 mm
- Width:
- 64 mm
- Depth:
- 9.2 mm +0.7 mm versus Redmi 4a
2. Redmi 4a
- Height:
- 139.9 mm +17.9 mm versus Optimus Black (White version)
- Width:
- 70.4 mm +6.4 mm versus Optimus Black (White version)
- Depth:
- 8.5 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. Optimus Black (White version)
- Screen diagonal:
- 4 in
- Aspect ratio (height:width):
- 5:3
- Approximate rectangular screen area:
- 45.5 cm²
2. Redmi 4a
- Screen diagonal:
- 5 in
- Aspect ratio (height:width):
- 16:9
- Approximate rectangular screen area:
- 68.9 cm²
Redmi 4a has approximately 51.3% more rectangular screen area than Optimus Black (White version).
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 | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| 16 GB | Unknown | 2 GB RAM |
| 32 GB | Unknown | 2 GB RAM |
Optimus Black (White version): Original memory entry
2 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. Optimus Black (White version)
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 32 GB (dedicated slot)
2. Redmi 4a
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 256 GB (uses SIM 2 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 | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Dimensions (HxWxD) |
|
|
| 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 | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Touchscreen |
|
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| Display colors |
|
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| 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 | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Rear camera, main |
|
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| 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.
| Specification | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Processor CPU |
|
|
| Graphics processor GPU |
|
|
| Antutu 7 score * | Unknown |
|
| GeekBench 4 Single Core * | Unknown |
|
| GeekBench 4 Multi-Core * | Unknown |
|
| GeekBench 4 RenderScript * | Unknown |
|
| GeekBench 5 Single Core * | Unknown |
|
| GeekBench 5 Multi-Core * | Unknown |
|
General specs
| Specification | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
|
| Body build | Unknown |
|
Communication and Connectivity
| Specification | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| 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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| Harmful irradiation |
|
Unknown |
Music and Audio
| Specification | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Radio |
|
|
| Others | Unknown |
|
Other features
| Specification | Optimus Black (White version) | Redmi 4a |
|---|---|---|
| Dop |
|
|


