Compare phones
| Global Score | |
| 74.2 | 76.7 |
| Basic Information | |
| Asus | Xiaomi |
| Android 8.0 Oreo, 7.0 Nougat | Android 11 |
| 2017-10-30 | 2021-05-27 |
| 6.12 x 2.96 x 0.30 inches | 6.23 x 2.96 x 0.33 inches |
| 5.82 ounces | 6.70 ounces |
| Black, Green and White | Moonlight White, Neptune Blue and Space Black, |
| Metal | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 399.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.3 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super IPS+ LCD | IPS LCD |
| 401 pixels per inch | 409 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 630 chipset | MediaTek Helio G85 MT6769Z chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 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 HSPA |
| Nano SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | 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 |
| FM Radio | -- |
Comparison review
Xiaomi Redmi Note 8 2021 is a little bit better than Asus ZenFone 4, getting a 76.7 score against 74.2. Both phones in this review have Android operating system, but Xiaomi Redmi Note 8 2021 has the older 11 version and Asus ZenFone 4 has Android 8.0 Oreo. Xiaomi Redmi Note 8 2021's design is incredibly newer than Asus ZenFone 4's, but it's a little thicker and heavier.
The Asus ZenFone 4 has a bit more powerful CPU than Xiaomi Redmi Note 8 2021. They have a 4 GB RAM and the same number of cores. The Asus ZenFone 4 features a little more vivid display than Xiaomi Redmi Note 8 2021, although it has a quite smaller screen, a bit worse resolution of 1080 x 1920px and a just a bit lower display density.
The Asus ZenFone 4 features a lot bigger memory capacity for games and applications than Xiaomi Redmi Note 8 2021, and although they both have the same 64 GB internal memory, the Asus ZenFone 4 also has a slot for an external memory card that holds a maximum of 1,95 TB. The Xiaomi Redmi Note 8 2021 features a superior camera than Asus ZenFone 4, and although they both have the same video resolution, the same video frame rate and a F1.8 diafragm aperture, the Xiaomi Redmi Note 8 2021 also has a much larger camera sensor taking way better quality photographs and videos and a camera in the back with much more mega pixels.
The Xiaomi Redmi Note 8 2021 features improved battery duration than Asus ZenFone 4, because it has 4000mAh of battery capacity.
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