  |  |  |  |  |
| Operating system | Android 7.0 | Android 1.5 | Proprietary OS | Android 2.3 | Android 10 |
|---|---|---|---|---|---|
| CPU clock speed | 1.3 GHz | 0.53 GHz | N/A | 0.8 GHz | 3.09 GHz |
| CPU cores | Quad-core | Single-core | Single-core | Single-core | 8-core |
| CPU model | N/A | Qualcomm Snapdragon MSM7200A | N/A | Qualcomm Snapdragon MSM7227A | N/A |
| RAM memory | N/A | 56 MB | N/A | 512 MB | 12 GB |
| GPU model | N/A | N/A | N/A | Qualcomm Adreno 200 | N/A |
| Battery capacity | 4400.0 mAh | 1500.0 mAh | 860.0 mAh | 1300.0 mAh | 4500.0 mAh |
|---|---|---|---|---|---|
| Replaceable battery | N/A | yes | yes | yes | N/A |
| Standby time | N/A | 500.0 h | 300.0 h | 600.0 h | N/A |
| Talk time | N/A | 7.7 h | 3.5 h | 12.0 h | 35.0 h |
| Fast charging | N/A | no | no | no | N/A |
| Battery type | N/A | N/A | N/A | Lithium ion | N/A |
| Wireless charging | N/A | N/A | N/A | no | yes |
| Wireless charging standard | N/A | N/A | N/A | N/A |
|
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