Compare phones
| Global Score | |
| 75.2 | 76.6 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 4.4.3 | Android 10 |
| 2014-07-22 | 2020-05-20 |
| 5.48 x 2.70 x 0.35 inches | 6.39 x 3.04 x 0.35 inches |
| 5.26 ounces | 7.02 ounces |
| Black and White | Forest green, Midnight gray and Polar white |
| -- | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 329.00 | $ 283.00 |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| IPS LCD | IPS LCD |
| 441 pixels per inch | 396 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | MediaTek Helio G85 chipset |
| Qualcomm Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali G52 MC2 GPU |
| 9.36 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 128 GB) external memory slot |
| 7.7 | 10.02 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.79 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3080mAh Li-Polymer Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Redmi Note 9 is slightly better than the Xiaomi Mi 4, having a 76.6 score against 75.2. Both of these phones work with Android OS (operating system), but the Xiaomi Redmi Note 9 has the older 10 version and Xiaomi Mi 4 has Android 4.4.3. Xiaomi Redmi Note 9 is a extremely heavier device than the Xiaomi Mi 4, but both are equally thin.
The Xiaomi Mi 4 has a bit superior CPU than Xiaomi Redmi Note 9, because although it has a lower number of cores , and they both have the same RAM amount, the Xiaomi Mi 4 also counts with an additional graphics processor. Xiaomi Mi 4 has a brighter display than Xiaomi Redmi Note 9, because although it has a little bit lower resolution of 1920 x 1080px and a way smaller screen, it also counts with a little bit greater pixels quantity in each inch of display.
Xiaomi Redmi Note 9 has much more memory capacity to store more apps and games than Xiaomi Mi 4, and although they both have the same internal storage capacity, the Xiaomi Redmi Note 9 also has an external memory slot that admits up to 128 GB. The Xiaomi Redmi Note 9 shoots much better photographs and videos than Xiaomi Mi 4, and although they both have the same aperture, the same (Full HD) video definition and the same video frame rate, the Xiaomi Redmi Note 9 also has a way bigger sensor providing a way better image quality and a lot better 48 mega pixels resolution camera.
The Xiaomi Redmi Note 9 counts with a very superior battery lifetime than Xiaomi Mi 4, because it has a 63 percent greater battery size.
The Xiaomi Redmi Note 9 is not only the best devices of the ones we are comparing, but it's also the cheapest.
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