Compare phones
| Global Score | |
| 73.1 | 76.7 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 13 | Android 11 |
| -- | 2021-05-27 |
| -- | 6.23 x 2.96 x 0.33 inches |
| -- | 6.70 ounces |
| -- | Moonlight White, Neptune Blue and Space Black, |
| -- | Glass and Plastic |
| -- | 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 |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 2 SM8550 (4 nm) chipset | MediaTek Helio G85 MT6769Z chipset |
| processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 740 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 + 32.00 MP | 48.00 MP + 13.00 MP |
| -- | f/1.80 aperture |
| -- | 0.5 inches (1/2") sensor |
| -- | 1920 x 1080 (30 fps) (Full HD) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 8.47 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA |
| Nano SIM | Nano SIM |
| 7 | 6.6 |
| Battery Life | |
| 4900mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.72 | 5.92 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| -- | 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 Redmi Note 8 2021 has a score of 76.7, which is a bit better than the Xiaomi 13 Ultra's global score of 73.1. These phones work with Android OS, but the Xiaomi Redmi Note 8 2021 has the previous 11 version and Xiaomi 13 Ultra has Android 13. Xiaomi 13 Ultra and Xiaomi Redmi Note 8 2021 feature quite similar screens, although the Xiaomi Redmi Note 8 2021 has a just a little lower pixel density, a quite smaller display and a way worse 1080 x 2340 resolution.
The Xiaomi Redmi Note 8 2021 features a much faster processor than Xiaomi 13 Ultra, although it has lesser RAM, they both have the same number of cores. Xiaomi Redmi Note 8 2021 features a much better camera than Xiaomi 13 Ultra, although it has a lower resolution camera. Xiaomi 13 Ultra features a lot bigger memory capacity to store more apps and games than Xiaomi Redmi Note 8 2021, because although it has no SD memory card expansion slot, it also counts with 256 GB internal storage.
Xiaomi 13 Ultra counts with superior battery life than Xiaomi Redmi Note 8 2021, because it has a 4900mAh battery size.
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