Compare phones
| Global Score | |
| 73 | 76.7 |
| Basic Information | |
| Sony | Xiaomi |
| Android 4.4.2 | Android 11 |
| -- | 2021-05-27 |
| 5.39 x 2.83 x 0.43 inches | 6.23 x 2.96 x 0.33 inches |
| 5.75 ounces | 6.70 ounces |
| Black, Blue and White | Moonlight White, Neptune Blue and Space Black, |
| -- | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | -- |
| Display / Screen | |
| 5 inches | 6.3 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| IPS LCD | IPS LCD |
| 441 pixels per inch | 409 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AB chipset | MediaTek Helio G85 MT6769Z chipset |
| Krait 400 (Quad-Core 2300 MHz) processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 16 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 6.72 | 10.02 |
| Camera | |
| 20.70 MP + 0.30 MP | 48.00 MP + 13.00 MP |
| -- | f/1.80 aperture |
| 0.43 inches (1/2.3") 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 | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.24 | 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 HSPA |
| Micro SIM | Nano SIM |
| 7 | 6.6 |
| Battery Life | |
| 3000mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 690 hours standby time 15 hours talk time | -- |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Redmi Note 8 2021 has an overall score of 76.7, which is slightly better than the Xperia Z2a's overall score of 73. Xiaomi Redmi Note 8 2021 is a somewhat heavier but incredibly thinner cellphone than Xperia Z2a. Both of these phones use Android operating system, but the Xiaomi Redmi Note 8 2021 has the older 11 version and Xperia Z2a has Android 4.4.2.
The Xperia Z2a has a bit more powerful processing unit than Xiaomi Redmi Note 8 2021, because although it has an inferior number of cores (but faster) and a smaller amount of RAM memory, it also counts with a graphics processor. Xperia Z2a counts with a much better looking screen than Xiaomi Redmi Note 8 2021, because although it has a really smaller display and a quite lower 1920 x 1080px resolution, it also counts with a quite better pixels count per screen inch.
The Xiaomi Redmi Note 8 2021 has a much greater storage to install applications and games than Xperia Z2a, and although they both have a SD memory slot that holds up to 128 GB, the Xiaomi Redmi Note 8 2021 also has 48 GB more internal storage. Xiaomi Redmi Note 8 2021 counts with improved battery life than Xperia Z2a, because it has a 4000mAh battery size.
The Xiaomi Redmi Note 8 2021 features a better camera than Xperia Z2a, and although they both have the same 30 fps video frame rates and the same (Full HD) video definition, the Xiaomi Redmi Note 8 2021 also has a camera with a lot higher 48 mega-pixels resolution and a larger back camera sensor taking higher quality pictures and videos.
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