  |  |  |  |  |
| Operating system | Android 9.0 Pie | Android 2.2 | Android 7.1 | Proprietary OS | Proprietary OS |
|---|---|---|---|---|---|
| CPU model | Qualcomm | Qualcomm Snapdragon MSM7227 | MediaTek MT6737 | N/A | N/A |
| RAM memory | 2 GB | 128 MB | 2 GB | N/A | N/A |
| CPU clock speed | N/A | 0.6 GHz | 1.3 GHz | N/A | N/A |
| GPU model | N/A | Qualcomm Adreno 200 | ARM Mali-T720 | N/A | N/A |
| CPU cores | N/A | N/A | Quad-core | Single-core | Single-core |
| Height | 5.83 in | 4.49 in | 5.7 in | 4.13 in | 3.35 in |
|---|---|---|---|---|---|
| Width | 2.64 in | 2.32 in | 2.85 in | 1.73 in | 1.71 in |
| Depth | 0.94 in | 0.51 in | 0.37 in | 0.71 in | 0.78 in |
| Weight | 11.64 oz | 3.21 oz | 5.33 oz | 3.1 oz | 2.72 oz |
| Sim card size | Nano SIM | Mini-SIM | Nano-SIM | Mini-SIM | Mini-SIM |
|---|---|---|---|---|---|
| Bluetooth | N/A | yes | N/A | no | no |
| Bluetooth version | N/A | 2.1 EDR | 4.2 | N/A | N/A |
| Charging connection | N/A | USB | USB | USB | N/A |
| Headphone connection | N/A | 3.5 mm | 3.5 mm | N/A | N/A |
| Type of USB connector | N/A | Micro-USB | N/A | N/A | N/A |
| Dual sim support | N/A | N/A |
| no | no |
| Bluetooth profile | N/A | N/A | A2DP | N/A | N/A |
| USB version | N/A | N/A | 2.0 | 2.0 | N/A |
| Video output | N/A | N/A | No | No | No |
| NFC | N/A | N/A | N/A | no | no |
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