Compare phones
| Global Score | |
| 76 | 76.7 |
| Basic Information | |
| OnePlus | Xiaomi |
| Android 11 | Android 11 |
| 2021-04-02 | 2021-05-27 |
| 6.30 x 2.92 x 0.34 inches | 6.23 x 2.96 x 0.33 inches |
| 6.77 ounces | 6.70 ounces |
| Arctic Sky, Astral Black and Winter Mist | Moonlight White, Neptune Blue and Space Black, |
| Aluminum and Glass (Corning Gorilla Glass) | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | IPS LCD |
| 405 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | MediaTek Helio G85 MT6769Z chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Mali G52 MC2 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 128 GB) external memory slot |
| 10.1 | 10.02 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 23.00mm focal length | -- |
| 0.71 inches (1/1.4") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 12.65 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.6 |
| Battery Life | |
| 4500mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 5.92 |
| Other Features | |
| Bluetooth 5.2 | 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
Xiaomi Redmi Note 8 2021 is slightly better than the OnePlus 9, with a 76.7 score against 76. Even when Xiaomi Redmi Note 8 2021 and the OnePlus 9 were only released with a couple months difference, Xiaomi Redmi Note 8 2021 is just a little lighter and just a little thinner. Both of these devices work with the same Android 11 OS (Operating System).
The OnePlus 9 has a slightly better looking display than Xiaomi Redmi Note 8 2021, because although it has a just a bit lower pixels density, it also counts with a quite larger display and a slightly better 1080 x 2400px resolution. OnePlus 9 has a little bit better processing power than Xiaomi Redmi Note 8 2021, and although they both have 8 cores, the OnePlus 9 also has more RAM.
The OnePlus 9 counts with a superior camera than Xiaomi Redmi Note 8 2021, and although they both have a F1.8 diafragm aperture and a same resolution back camera, the OnePlus 9 also has a lot higher video definition and a way larger back-facing camera sensor taking way higher quality videos and photographs.
OnePlus 9 counts with a slightly bigger memory for games and applications than Xiaomi Redmi Note 8 2021, because although it has no slot for an SD memory card, it also counts with 128 GB internal storage capacity. OnePlus 9 counts with a little better battery duration than Xiaomi Redmi Note 8 2021, because it has 4500mAh of battery capacity.
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