Let's compare each phone and tablet in the specs table.
| Xiaomi 15T | Rakuten BIG | |
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| Manufacturer | Xiaomi | Rakuten Mobile |
| Release Date | ||
| Screen Size | 6.83 inch | 6.9 inch |
| Resolution | 1,280 x 2,772 | 1,080 x 2,460 |
| Display Details | AMOLED | |
| Max Refresh Rate | 120 Hz | |
| Max Brightness | 3200 nits | |
| Glass | Corning® Gorilla® Glass® 7i | |
| Body Size | 78mm x 163.2mm x 7.5mm | 80mm x 174mm x 9mm |
| Weight | 194 g | 227 g |
| Processor | MediaTek Dimensity 8400 Ultra | Qualcomm Snapdragon 765G Octa-core 2.4GHz + 2.2GHz + 1.8GHz |
| OS | Android 15 | Android 10 |
| Main camera 1 | 50-megapixel(f/1.7) | 64-megapixel |
| Main camera 1 details | Light Fusion 800, OIS, 23mm | |
| Main camera 2 | 12-megapixel(f/2.2) | 8-megapixel |
| Main camera 2 details | ultra wide 120°, 15mm | ultra-wide-angle |
| Main camera 3 | 50-megapixel(f/1.9) | 2-megapixel |
| Main camera 3 details | optical zoom 2x, 46mm | macro |
| Main camera 4 | 2-megapixel | |
| Main camera 4 details | depth charge | |
| Main camera 5 | ||
| Main camera 5 details | ||
| Sub camera 1 | 32-megapixel(f/2.2) | 32-megapixel |
| Sub camera 1 details | 21mm | |
| Sub camera 2 | ||
| Sub camera 2 details | ||
| Battery | 5,500 mAh | 4,000 mAh |
| Charge | 67W HyperCharge | |
| Video playback time | ||
| RAM(GB) | 12G | 6G |
| RAM details | LPDDR5X | |
| ROM(GB) | 256G/512G | 128G |
| ROM details | UFS 4.1 | |
| Antutu | 1,612,000 ver10 | 300,000 ver8(estimated) |
| Water resistance | IPX8 | IPX8 |
| Dust resistance | IP6X | IP6X |
| SIM | 2 nano SIM or nano SIM + eSIM or 2 eSIM | |
| NFC | NFC-enabled |