Compare phones
| Global Score | |
| 76.7 | 81.4 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11 | Android 9.0 Pie |
| 2021-05-27 | 2019-04-15 |
| 6.23 x 2.96 x 0.33 inches | 5.81 x 2.78 x 0.29 inches |
| 6.70 ounces | 5.47 ounces |
| Moonlight White, Neptune Blue and Space Black, | 16 777 216 |
| Glass and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | AMOLED |
| 409 pixels per inch | 430 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.7 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Qualcomm Snapdragon 712 SDM712 chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali G52 MC2 GPU | Adreno 616 GPU |
| 9.09 | 9.36 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | No SD card slot |
| 10.02 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11 | 11.66 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3070mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.04 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | 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 Mi 9 SE is a little bit better than the Xiaomi Redmi Note 8 2021, getting a score of 81.4 against 76.7. These phones include Android OS (Operating System), but the Xiaomi Mi 9 SE has the newer 9.0 Pie version while Xiaomi Redmi Note 8 2021 has Android 11, so it offers a lot of extra features and performance enhancements. The Xiaomi Mi 9 SE body is somewhat thinner and somewhat lighter than the Xiaomi Redmi Note 8 2021, although it was released many years before.
The Xiaomi Mi 9 SE features a bit sharper display than Xiaomi Redmi Note 8 2021, because although it has a bit smaller display, and they both have exactly the same 1080 x 2340px resolution, the Xiaomi Mi 9 SE also counts with a just a bit more pixels per inch in the display. Xiaomi Mi 9 SE features a little bit better memory capacity for games and applications than Xiaomi Redmi Note 8 2021, because although it has no slot for an external memory card, it also counts with 128 GB internal memory.
The Xiaomi Mi 9 SE counts with a little faster processor than Xiaomi Redmi Note 8 2021, and although they both have the same number of cores, the Xiaomi Mi 9 SE also has a larger amount of RAM. The Xiaomi Redmi Note 8 2021 counts with greater battery life than Xiaomi Mi 9 SE, because it has 4000mAh of battery capacity.
The Xiaomi Mi 9 SE takes clearer photos and videos than Xiaomi Redmi Note 8 2021, and although they both have a 0.5 inches sensor, the same camera aperture and a back camera with a 48 mega pixels, the Xiaomi Mi 9 SE also has a way higher 3840x2160 video resolution.
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