Let's compare each phone and tablet in the specs table.
| Redmi Note 15 5G | OPPO Reno9 A | |
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| Manufacturer | Xiaomi | OPPO |
| Release Date | ||
| Screen Size | 6.77 inch | 6.4 inch |
| Resolution | 1,080 x 2,392 | 1,080 x 2,400 |
| Display Details | AMOLED | AMOLED |
| Max Refresh Rate | 120 Hz | 90 Hz |
| Max Brightness | 3200 nits | 600 nits |
| Glass | ||
| Body Size | 75.42mm x 164mm x 7.35mm | 74mm x 160mm x 7.8mm |
| Weight | 178 g | 183 g |
| Processor | Qualcomm Snapdragon 6 Gen 3 | Qualcomm Snapdragon 695 5G |
| OS | Android 15 | Android 13 |
| Main camera 1 | 108-megapixel(f/1.7) | 48-megapixel(f/1.7) |
| Main camera 1 details | 1/1.67”, OIS | |
| Main camera 2 | 8-megapixel(f/2.2) | 8-megapixel(f/2.2) |
| Main camera 2 details | ultra-wide | ultra-wide angle 120° |
| Main camera 3 | 2-megapixel(f/2.4) | |
| Main camera 3 details | macro | |
| Main camera 4 | ||
| Main camera 4 details | ||
| Main camera 5 | ||
| Main camera 5 details | ||
| Sub camera 1 | 20-megapixel(f/2.2) | 16-megapixel(f/2.4) |
| Sub camera 1 details | 1/4" | |
| Sub camera 2 | ||
| Sub camera 2 details | ||
| Battery | 5,520 mAh | 4,500 mAh |
| Charge | 45W, 18W reverse | |
| Video playback time | 21 hours | |
| RAM(GB) | 8G | 8G |
| RAM details | LPDDR4X | |
| ROM(GB) | 256G/512G | 128G |
| ROM details | UFS2.2 | |
| Antutu | 846,000 ver11 | 390,000 ver9 |
| Water resistance | IPX6 | IPX8 |
| Dust resistance | IP6X | IP6X |
| SIM | nano SIM 1 +（nano SIM or microSD） | dual SIM(nanoSIM＋eSIM) |
| NFC | NFC-enabled | Felica |