O2 XDA II mini 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 II mini: 41 g lighter
- XDA II mini:
- 150 g
- Galaxy M31:
- 191 g
-
Width
XDA II mini: 17.1 mm narrower
- XDA II mini:
- 58 mm
- Galaxy M31:
- 75.1 mm
-
Screen diagonal
XDA II mini: 3.6 in smaller diagonal
- XDA II mini:
- 2.8 in
- Galaxy M31:
- 6.4 in
-
Rear camera layout
- XDA II mini:
- Single
- Galaxy M31:
- Triple
-
Depth
Galaxy M31: 9.1 mm thinner
- XDA II mini:
- 18 mm
- Galaxy M31:
- 8.9 mm
-
Height
XDA II mini: 51.2 mm shorter
- XDA II mini:
- 108 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 II mini
- Height:
- 108 mm
- Width:
- 58 mm
- Depth:
- 18 mm +9.1 mm versus Galaxy M31
2. Galaxy M31
- Height:
- 159.2 mm +51.2 mm versus XDA II mini
- Width:
- 75.1 mm +17.1 mm versus XDA II mini
- 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 II mini
- Screen diagonal:
- 2.8 in
- Aspect ratio (height:width):
- 4:3
- Approximate rectangular screen area:
- 24.3 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 314.1% more rectangular screen area than XDA II mini.
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 II mini | Galaxy M31 |
|---|---|---|
| 64 GB | Unknown | 6 GB RAM |
| 128 GB | Unknown | 6 GB RAM |
XDA II mini: Original memory entry
64 MB RAM · 64 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 II mini
- NFC:
- Unknown
- Headphone jack:
- No
- Memory card support:
- See details MMC/SDIO
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 II mini | 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 II mini | Galaxy M31 |
|---|---|---|
| Touchscreen |
|
|
| Display colors |
|
|
| Screen area |
|
|
| Screen format |
|
|
| Screen to body ratio |
|
|
| PPI /points per inch/ |
|
|
| Screen protection | Unknown |
|
Camera and Video
| Specification | XDA II mini | Galaxy M31 |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
|
| Functions | Unknown |
|
| Video |
|
|
| Front camera, selfie |
|
|
| Specifications | Unknown |
|
Performance
Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.
| Specification | XDA II mini | Galaxy M31 |
|---|---|---|
| Processor CPU |
|
|
| Graphics processor GPU | Unknown |
|
| Antutu 8 score * | Unknown |
|
General specs
| Specification | XDA II mini | Galaxy M31 |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. | Unknown |
|
| Battery life |
|
Unknown |
| Body build | Unknown |
|
Communication and Connectivity
| Specification | XDA II mini | Galaxy M31 |
|---|---|---|
| SIM card |
|
|
| Network | Unknown |
|
| Speed | Unknown |
|
| GPRS |
|
|
| Edge |
|
|
| Wi-Fi |
|
|
| GPS |
|
|
| USB |
|
|
| Bluetooth |
|
|
| Harmful irradiation | Unknown |
|
Music and Audio
| Specification | XDA II mini | Galaxy M31 |
|---|---|---|
| Radio |
|
|
| Others |
|
Unknown |
Other features
| Specification | XDA II mini | Galaxy M31 |
|---|---|---|
| Dop |
|
|



