Let's compare each phone and tablet in the specs table.
| POCO X8 Pro | UMIDIGI S3 Pro | |
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| Manufacturer | Xiaomi | UMIDIGI |
| Release Date | ||
| Screen Size | 6.59 inch | 6.3 inch |
| Resolution | 1,268 x 2,756 | 1,080 x 2,340 |
| Display Details | OLED | |
| Max Refresh Rate | 120 Hz | |
| Max Brightness | 3500 nits | |
| Glass | Corning Gorilla Glass 7i | |
| Body Size | 75.19mm x 157.53mm x 8.38mm | 74.65mm x 157mm x 8.5mm |
| Weight | 201.47 g | 216.6 g |
| Processor | MediaTek Dimensity 8500-Ultra | MediaTek Helio P70 4xCortex-A73, 2.1GHz & 4xCortex-A53, 2.0GHz |
| OS | Android 15 | Android 9.0 |
| Main camera 1 | 50-megapixel(f/1.5) | 48-megapixel(f/1.7) |
| Main camera 1 details | IMX882, 1/1.95", OIS | Sony IMX586 |
| Main camera 2 | 8-megapixel(f/2.2) | 12-megapixel(f/2.2) |
| Main camera 2 details | ultra-wide | 2x optical zoom |
| Main camera 3 | ||
| Main camera 3 details | ||
| Main camera 4 | ||
| Main camera 4 details | ||
| Main camera 5 | ||
| Main camera 5 details | ||
| Sub camera 1 | 20-megapixel | 20-megapixel(f/2) |
| Sub camera 1 details | Sony IMX376 | |
| Sub camera 2 | ||
| Sub camera 2 details | ||
| Battery | 6,500 mAh | 5,150 mAh |
| Charge | 100W HyperCharge | |
| Video playback time | ||
| RAM(GB) | 8G/12G | 6G |
| RAM details | LPDDR5X | |
| ROM(GB) | 256G/512G | 128G |
| ROM details | UFS 4.1 | |
| Antutu | 2,012,000 ver11 | 143,000 ver7 |
| Water resistance | IPX8 | - |
| Dust resistance | IP6X | - |
| SIM | 2 nano SIM | |
| NFC | NFC-enabled |