Compare phones
| Global Score | |
| 76.7 | 81 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11 | Android 12 |
| 2021-05-27 | -- |
| 6.23 x 2.96 x 0.33 inches | -- |
| 6.70 ounces | -- |
| Moonlight White, Neptune Blue and Space Black, | Black and White |
| Glass and Plastic | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.7 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | AMOLED |
| 409 pixels per inch | 524 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.7 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | processor |
| 4 GB RAM | 8 GB RAM |
| Mali G52 MC2 GPU | Adreno 730 GPU |
| 9.09 | 6.21 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | No SD card slot |
| 10.02 | 13.3 |
| Camera | |
| 48.00 MP + 13.00 MP | 50.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 11 | 12.32 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM |
| 6.6 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4800mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.64 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.2 |
| GPS | GPS |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi 12S Ultra is a bit better than the Xiaomi Redmi Note 8 2021, getting an 81 score against 76.7. Both phones in our current comparison have Android OS (operating system), but the Xiaomi 12S Ultra has a more recent 12 version and Xiaomi Redmi Note 8 2021 has Android 11. The Xiaomi 12S Ultra is a notably thinner and way lighter cellphone than the Xiaomi Redmi Note 8 2021.
Xiaomi Redmi Note 8 2021 features a much faster processing unit than Xiaomi 12S Ultra, although it has less RAM, they both have the same number of cores. The Xiaomi 12S Ultra features a sharper display than Xiaomi Redmi Note 8 2021, because it has a better 1440 x 3200px resolution, a little bigger screen and more pixels per screen inch.
Xiaomi 12S Ultra has a much bigger memory to install games and applications than Xiaomi Redmi Note 8 2021, because although it has no SD card slot, it also counts with 256 GB internal memory capacity. Xiaomi 12S Ultra features better battery lifetime than Xiaomi Redmi Note 8 2021, because it has a 20% bigger battery capacity.
Xiaomi 12S Ultra captures much clearer photos and videos than Xiaomi Redmi Note 8 2021, because although it has a smaller diafragm aperture, and they both have the same back-facing camera sensor size, the Xiaomi 12S Ultra also counts with a way higher video definition and a back camera with a higher 50 megapixels resolution.
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