Compare phones
| Global Score | |
| 75.3 | 76 |
| Basic Information | |
| Xiaomi | OnePlus |
| Android 8.1 Oreo, 7.1 Nougat | Android 11 |
| 2017-09-12 | 2021-04-02 |
| 6.01 x 2.91 x 0.30 inches | 6.30 x 2.92 x 0.34 inches |
| 5.75 ounces | 6.77 ounces |
| Black and Blue | Arctic Sky, Astral Black and Winter Mist |
| Aluminum and Glass | Aluminum and Glass (Corning Gorilla Glass) |
| -- | Scratch-Resistant Glass |
| $ 444.00 | $ 700.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | AMOLED |
| 401 pixels per inch | 405 pixels per inch |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.5 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 660 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 512 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.00 MP + 16.00 MP | 48.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 27.00mm focal length | 23.00mm focal length |
| -- | 0.71 inches (1/1.4") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.57 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| -- | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 3 | 10.7 |
| Battery Life | |
| 3500mAh Li - Ion Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.44 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
OnePlus 9 is slightly better than the Xiaomi Mi Note 3, getting a overall score of 76 against 75.3. Both of these phones work with Android OS, but the OnePlus 9 has the older 11 version and Xiaomi Mi Note 3 has Android 8.1 Oreo. The OnePlus 9 construction is a lot newer than the Xiaomi Mi Note 3's, but it's somewhat heavier and somewhat thicker.
OnePlus 9 features a bit better processing unit than Xiaomi Mi Note 3, and although they both have 8 processing cores, the OnePlus 9 also has more RAM memory. Xiaomi Mi Note 3 features a little bit better screen than OnePlus 9, although it has a little bit worse resolution of 1080 x 1920px, a bit smaller display and a just a bit lower quantity of pixels per display inch.
OnePlus 9 features a very superior camera than Xiaomi Mi Note 3, and although they both have a same size camera aperture, the OnePlus 9 also has a way better 7680x4320 video resolution and a back camera with a much higher 48 megapixels resolution. OnePlus 9 has as much memory to install applications and games or saving photos and videos as the Xiaomi Mi Note 3 one, both of them have exactly the same 128 GB internal storage.
The OnePlus 9 has greater battery performance than Xiaomi Mi Note 3, because it has a 4500mAh battery capacity instead of 3500mAh.
Although OnePlus 9 is a better device, it is a lot more expensive than Xiaomi Mi Note 3, and it doesn't have such a good quality/price relation as Xiaomi Mi Note 3. So if you want that extra specs and features, you can buy the OnePlus 9, but if you don't you can save some money and get the Xiaomi Mi Note 3, giving up a couple specifications.
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