Let's compare each phone and tablet in the specs table.
| Redmi 15 5G | Redmi 12 5G | |
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| Manufacturer | Xiaomi | Xiaomi |
| Release Date | ||
| Screen Size | 6.9 inch | 6.8 inch |
| Resolution | 1,080 x 2,340 | 1,080 x 2,460 |
| Display Details | LCD | |
| Max Refresh Rate | 144 Hz | 90 Hz |
| Max Brightness | 850 nits | 550 nits |
| Glass | ||
| Body Size | 80.45mm x 169.48mm x 8.4mm | 76mm x 169mm x 8.2mm |
| Weight | 217 g | 200 g |
| Processor | Qualcomm Snapdragon 6s Gen 3 octa core | Qualcomm Snapdragon 4 Gen 2 2.2GHz x 2 + 2GHz x 6 |
| OS | Android 15 | Android 13 |
| Main camera 1 | 50-megapixel(f/1.8) | 50-megapixel(f/1.8) |
| Main camera 1 details | ||
| Main camera 2 | 2-megapixel(f/2.4) | |
| Main camera 2 details | depth | |
| Main camera 3 | ||
| Main camera 3 details | ||
| Main camera 4 | ||
| Main camera 4 details | ||
| Main camera 5 | ||
| Main camera 5 details | ||
| Sub camera 1 | 8-megapixel(f/2) | 5-megapixel(f/2.2) |
| Sub camera 1 details | ||
| Sub camera 2 | ||
| Sub camera 2 details | ||
| Battery | 7,000 mAh | 5,000 mAh |
| Charge | 33W / 17W reverse | |
| Video playback time | 25 hours | |
| RAM(GB) | 4G/8G | 4G |
| RAM details | LPDDR4X | |
| ROM(GB) | 128G/256G | 128G |
| ROM details | UFS2.2 | |
| Antutu | 459,000 ver10 | 451,000 ver10 |
| Water resistance | IPX4 | IPX3 |
| Dust resistance | IP6X | IP5X |
| SIM | nanoSIM + eSIM | Dual SIM（nano SIM + eSIM） |
| NFC | Felica | Felica |