Compare phones
| Global Score | |
| 81 | 76.7 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 12 | Android 11 |
| -- | 2021-05-27 |
| -- | 6.23 x 2.96 x 0.33 inches |
| -- | 6.70 ounces |
| Black and White | Moonlight White, Neptune Blue and Space Black, |
| Aluminum and Ceramic | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.3 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| AMOLED | IPS LCD |
| 524 pixels per inch | 409 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.7 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | MediaTek Helio G85 MT6769Z chipset |
| processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 730 GPU | Mali G52 MC2 GPU |
| 6.21 | 9.09 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 128 GB) external memory slot |
| 13.3 | 10.02 |
| Camera | |
| 50.00 MP + 20.00 MP | 48.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 12.32 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA |
| Nano SIM | Nano SIM |
| 10.6 | 6.6 |
| Battery Life | |
| 4800mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.64 | 5.92 |
| 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
The Xiaomi 12S Ultra is slightly better than Xiaomi Redmi Note 8 2021, having an 81 score against 76.7. The Xiaomi 12S Ultra is a extremely lighter and noticeably thinner phone than Xiaomi Redmi Note 8 2021. Both devices in this review use Android OS, but the Xiaomi 12S Ultra has the newer 12 version and Xiaomi Redmi Note 8 2021 has Android 11 version, so it provides the user some nice extra features.
Xiaomi Redmi Note 8 2021 counts with a lot better hardware performance than Xiaomi 12S Ultra, although it has 4 GB less RAM memory, they both have the same number of cores. The Xiaomi 12S Ultra counts with a better looking display than Xiaomi Redmi Note 8 2021, because it has a higher 1440 x 3200px resolution, a little bit bigger display and a better count of pixels per inch of display.
Xiaomi 12S Ultra counts with a lot bigger memory for applications, games, photos and videos than Xiaomi Redmi Note 8 2021, because although it has no slot for an external memory card, it also counts with 256 GB internal memory. The Xiaomi 12S Ultra counts with greater battery life than Xiaomi Redmi Note 8 2021, because it has 4800mAh of battery capacity instead of 4000mAh.
The Xiaomi 12S Ultra shoots better videos and photos than Xiaomi Redmi Note 8 2021, because although it has a tinier aperture which is not favorable for low light images and video, and they both have a same size camera sensor, the Xiaomi 12S Ultra also counts with a way better video definition and a higher resolution back-facing camera.
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