Oppo A31 vs Plum Coach Plus II
Compare recorded specifications, size and practical differences.
Plum Coach Plus II
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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
Coach Plus II: 24 g lighter
- A31:
- 180 g
- Coach Plus II:
- 156 g
-
Width
Coach Plus II: 1.5 mm narrower
- A31:
- 75.5 mm
- Coach Plus II:
- 74 mm
-
Screen diagonal
Coach Plus II: 0.5 in smaller diagonal
- A31:
- 6.5 in
- Coach Plus II:
- 6 in
-
Rear camera layout
- A31:
- Triple
- Coach Plus II:
- Single
-
Depth
A31: 1.6 mm thinner
- A31:
- 8.3 mm
- Coach Plus II:
- 9.9 mm
-
Height
Coach Plus II: 6.1 mm shorter
- A31:
- 163.9 mm
- Coach Plus II:
- 157.8 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. A31
- Height:
- 163.9 mm +6.1 mm versus Coach Plus II
- Width:
- 75.5 mm +1.5 mm versus Coach Plus II
- Depth:
- 8.3 mm
2. Coach Plus II
- Height:
- 157.8 mm
- Width:
- 74 mm
- Depth:
- 9.9 mm +1.6 mm versus A31
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. A31
- Screen diagonal:
- 6.5 in
- Aspect ratio (height:width):
- 20:9
- Approximate rectangular screen area:
- 102 cm²
2. Coach Plus II
- Screen diagonal:
- 6 in
- Aspect ratio (height:width):
- 16:9
- Approximate rectangular screen area:
- 99.2 cm²
A31 has approximately 2.8% more rectangular screen area than Coach Plus II.
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 | A31 | Coach Plus II |
|---|---|---|
| 128 GB | 4 GB RAM | Unknown |
Coach Plus II: 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. A31
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSDXC (dedicated slot)
2. Coach Plus II
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 64 GB
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. A312. Coach Plus II
Everyday essentials
| Specification | A31 | Coach Plus II |
|---|---|---|
| Dimensions (HxWxD) |
|
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| Weight |
|
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| Technology |
|
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| 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 |
|
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| Chipset |
|
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| Headphone jack |
|
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Display
| Specification | A31 | Coach Plus II |
|---|---|---|
| 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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Camera and Video
| Specification | A31 | Coach Plus II |
|---|---|---|
| Rear camera, main |
|
|
| 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 | A31 | Coach Plus II |
|---|---|---|
| Processor CPU |
|
|
| Graphics processor GPU |
|
|
| Antutu 8 score * |
|
Unknown |
General specs
| Specification | A31 | Coach Plus II |
|---|---|---|
| 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 | A31 | Coach Plus II |
|---|---|---|
| SIM card |
|
|
| Network |
|
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| Speed |
|
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| GPRS |
|
|
| Edge |
|
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| Wi-Fi |
|
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| GPS |
|
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| USB |
|
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| Bluetooth |
|
|
Music and Audio
| Specification | A31 | Coach Plus II |
|---|---|---|
| Radio |
|
|
| Others |
|
Unknown |
Other features
| Specification | A31 | Coach Plus II |
|---|---|---|
| Dop |
|
|
