Sign in with GoogleLet's compare each phone and tablet in the specs table.
| OUKITEL C21 | Zenfone 4 Selfie | |
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| Manufacturer | OUKITEL | ASUS |
| Release Date | ||
| Screen Size | 6.4 inch | 5.5 inch |
| 1,080 x 2,310 | 720 x 1,280 | |
| Body Size | 75.5mm x 157.3mm x 8.75mm | 75.9mm x 155.6mm x 7.8mm |
| Weight | 170 g | 144 g |
| Processor | MediaTek Helio P60 | Qualcomm Snapdragon 430 octa-core |
| OS | Android 10 | Android 7.1.1 |
| Main camera | 16-megapixel(f/2) + 2-megapixel + 2-megapixel + 2-megapixel | 16-megapixel |
| Sub camera | 2-megapixel(f/2) | 20-megapixel + 8-megapixel |
| Battery | 4,000 mAh | 3,000 mAh |
| Video playback time | ||
| RAM(GB) | 4 G | 4 G |
| ROM(GB) | 64 G | 64 G |
| Antutu | 145,000 ver8 | 36,000 ver6 |
| Water resistance | - | - |
| Dust resistance | - | - |