O2 XDA Atom Exec vs Samsung Galaxy M31
Compare recorded specifications, size and practical differences.
Samsung Galaxy M31
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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
XDA Atom Exec: 51 g lighter
- XDA Atom Exec:
- 140 g
- Galaxy M31:
- 191 g
-
Width
XDA Atom Exec: 17.1 mm narrower
- XDA Atom Exec:
- 58 mm
- Galaxy M31:
- 75.1 mm
-
Screen diagonal
XDA Atom Exec: 3.7 in smaller diagonal
- XDA Atom Exec:
- 2.7 in
- Galaxy M31:
- 6.4 in
-
Rear camera layout
- XDA Atom Exec:
- Single
- Galaxy M31:
- Triple
-
Depth
Galaxy M31: 9.6 mm thinner
- XDA Atom Exec:
- 18.5 mm
- Galaxy M31:
- 8.9 mm
-
Height
XDA Atom Exec: 57.2 mm shorter
- XDA Atom Exec:
- 102 mm
- Galaxy M31:
- 159.2 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. XDA Atom Exec
- Height:
- 102 mm
- Width:
- 58 mm
- Depth:
- 18.5 mm +9.6 mm versus Galaxy M31
2. Galaxy M31
- Height:
- 159.2 mm +57.2 mm versus XDA Atom Exec
- Width:
- 75.1 mm +17.1 mm versus XDA Atom Exec
- Depth:
- 8.9 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. XDA Atom Exec
- Screen diagonal:
- 2.7 in
- Aspect ratio (height:width):
- 4:3
- Approximate rectangular screen area:
- 22.6 cm²
2. Galaxy M31
- Screen diagonal:
- 6.4 in
- Aspect ratio (height:width):
- 19.5:9
- Approximate rectangular screen area:
- 100.5 cm²
Galaxy M31 has approximately 345.4% more rectangular screen area than XDA Atom Exec.
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 | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| 64 GB | Unknown | 6 GB RAM |
| 128 GB | Unknown | 6 GB RAM |
XDA Atom Exec: Original memory entry
64 MB RAM · 192 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. XDA Atom Exec
- NFC:
- Unknown
- Headphone jack:
- No
- Memory card support:
- See details miniSD
2. Galaxy M31
- 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.
Everyday essentials
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| 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 | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| Touchscreen |
|
|
| Display colors | Unknown |
|
| Screen area |
|
|
| Screen format |
|
|
| Screen to body ratio |
|
|
| PPI /points per inch/ |
|
|
| Screen protection | Unknown |
|
Camera and Video
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
|
| Functions |
|
|
| Video |
|
|
| Front camera, selfie |
|
|
| Specifications | Unknown |
|
Performance
Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| Processor CPU |
|
|
| Graphics processor GPU | Unknown |
|
| Antutu 8 score * | Unknown |
|
General specs
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
|
| Body build | Unknown |
|
Communication and Connectivity
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| SIM card |
|
|
| Network | Unknown |
|
| Speed | Unknown |
|
| GPRS |
|
|
| Edge |
|
|
| Wi-Fi |
|
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| GPS |
|
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| USB |
|
|
| Bluetooth |
|
|
| Harmful irradiation | Unknown |
|
Music and Audio
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| Radio |
|
|
| Others |
|
Unknown |
Other features
| Specification | XDA Atom Exec | Galaxy M31 |
|---|---|---|
| Dop |
|
|



