Compare phones
| Global Score | |
| 74.2 | 76.6 |
| Basic Information | |
| Asus | Xiaomi |
| Android 8.0 Oreo, 7.0 Nougat | Android 10 |
| 2017-10-30 | 2020-05-20 |
| 6.12 x 2.96 x 0.30 inches | 6.39 x 3.04 x 0.35 inches |
| 5.82 ounces | 7.02 ounces |
| Black, Green and White | Forest green, Midnight gray and Polar white |
| Metal | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 399.00 | $ 283.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super IPS+ LCD | IPS LCD |
| 401 pixels per inch | 396 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8 |
| Performance | |
| Qualcomm Snapdragon 630 chipset | MediaTek Helio G85 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 508 GPU | Mali G52 MC2 GPU |
| 9.18 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 14.66 | 10.02 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 25.00mm focal length | -- |
| 0.39 inches (1/2.55") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.57 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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 |
| FM Radio | -- |
Comparison review
The Xiaomi Redmi Note 9 has a score of 76.6, which is a bit better than Asus ZenFone 4's 74.2 global score. The Xiaomi Redmi Note 9 design is noticeably newer than the Asus ZenFone 4's, but it's somewhat thicker and somewhat heavier. Both phones we compare here come with Android OS (Operating System), but Xiaomi Redmi Note 9 has the previous 10 version and Asus ZenFone 4 has Android 8.0 Oreo.
Asus ZenFone 4 features just a bit better hardware performance than Xiaomi Redmi Note 9, and although they both have 8 CPU cores, the Asus ZenFone 4 also has a higher amount of RAM. Asus ZenFone 4 counts with a little bit better screen than Xiaomi Redmi Note 9, because although it has a little bit smaller screen and a little bit lower 1080 x 1920 resolution, it also counts with a bit higher screen pixel density.
Asus ZenFone 4 features a much greater memory to store more games and applications than Xiaomi Redmi Note 9, and although they both have the same internal storage, the Asus ZenFone 4 also has a SD extension slot that holds a maximum of 1,95 TB. The Xiaomi Redmi Note 9 has a very superior battery duration than Asus ZenFone 4, because it has a 5020mAh battery capacity.
The Xiaomi Redmi Note 9 counts with a superior camera than Asus ZenFone 4, and although they both have a same size camera aperture, the same 1920x1080 video resolution and the same 30 frames per second video frame rate, the Xiaomi Redmi Note 9 also has a way bigger sensor taking lot higher quality videos and photographs and a camera in the back with a lot better 48 mega-pixels resolution.
The Xiaomi Redmi Note 9 not only is the best phones of the ones we are comparing, but it's also very cheap compared to the other phones, making it an obvious call.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.