Samsung Galaxy A21 vs verykool s4510 Luna
Compare recorded specifications, size and practical differences.
verykool s4510 Luna
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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
- Galaxy A21:
- OLED
- s4510 Luna:
- LCD
-
Screen diagonal
s4510 Luna: 2 in smaller diagonal
- Galaxy A21:
- 6.5 in
- s4510 Luna:
- 4.5 in
-
Rear camera layout
- Galaxy A21:
- Quad
- s4510 Luna:
- Single
-
Release year
- Galaxy A21:
- 2020
- s4510 Luna:
- 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. Galaxy A21
- Height:
- Unknown
- Width:
- Unknown
- Depth:
- Unknown
- Weight:
- Unknown
Unavailable dimensions are omitted from the drawing.
2. s4510 Luna
- Height:
- 136 mm
- Width:
- 67.5 mm
- Depth:
- 10.2 mm
- Weight:
- 142 g
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. Galaxy A21
- Screen diagonal:
- 6.5 in
- Aspect ratio (height:width):
- 20:9
- Approximate rectangular screen area:
- 102 cm²
2. s4510 Luna
- Screen diagonal:
- 4.5 in
- Aspect ratio (height:width):
- 5:3
- Approximate rectangular screen area:
- 57.6 cm²
Galaxy A21 has approximately 77% more rectangular screen area than s4510 Luna.
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 | Galaxy A21 | s4510 Luna |
|---|---|---|
| 32 GB | 3 GB RAM | Unknown |
s4510 Luna: 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. Galaxy A21
- NFC:
- See details Yes (market/region dependent)
- Headphone jack:
- Yes
- Memory card support:
- See details microSDXC (dedicated slot)
2. s4510 Luna
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 32 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 | Galaxy A21 | s4510 Luna |
|---|---|---|
| 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 | Galaxy A21 | s4510 Luna |
|---|---|---|
| Touchscreen |
|
|
| Display colors |
|
|
| Screen area |
|
|
| Screen format |
|
|
| Screen to body ratio | Unknown |
|
| PPI /points per inch/ |
|
|
Camera and Video
| Specification | Galaxy A21 | s4510 Luna |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
|
| Functions |
|
Unknown |
| Video |
|
|
| Front camera, selfie |
|
|
| Specifications |
|
|
Performance
| Specification | Galaxy A21 | s4510 Luna |
|---|---|---|
| Processor CPU | Unknown |
|
| Graphics processor GPU | Unknown |
|
General specs
| Specification | Galaxy A21 | s4510 Luna |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
|
| Battery life | Unknown |
|
| Body build |
|
Unknown |
Communication and Connectivity
| Specification | Galaxy A21 | s4510 Luna |
|---|---|---|
| SIM card |
|
|
| Network |
|
|
| 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 | Galaxy A21 | s4510 Luna |
|---|---|---|
| Radio |
|
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Other features
| Specification | Galaxy A21 | s4510 Luna |
|---|---|---|
| Dop |
|
|



