| Global Score | |
| 77.3 | 76.6 |
| Basic Information | |
| Sony | Xiaomi |
| Android 4.4.4 | Android 10 |
| 2014-09-03 | 2020-05-20 |
| 5.85 x 2.89 x 0.35 inches | 6.39 x 3.04 x 0.35 inches |
| 6.02 ounces | 7.02 ounces |
| Black and White | Forest green, Midnight gray and Polar white |
| -- | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 170.00 | $ 283.00 |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| IPS LCD | IPS LCD |
| 424 pixels per inch | 396 pixels per inch |
| 592 cd/m2 brightness | -- |
| Capacitive, Multi-touch | No touch screen |
| 9.6 | 8 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | MediaTek Helio G85 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 3 GB (933 MHz) RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali G52 MC2 GPU |
| 9.45 | 9.09 |
| Storage | |
| 32 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 |
| 8.12 | 10.02 |
| Camera | |
| 20.70 MP + 2.20 MP | 48.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 25.00mm focal length | -- |
| 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 |
| 10.34 | 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 |
| Nano SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3200mAh Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 920 hours standby time 21 hours talk time | -- |
| 5.2 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
The Xperia Z3 is a little bit better than the Xiaomi Redmi Note 9, with a 77.3 score against 76.6. Both of these phones have Android OS (Operating System), but Xperia Z3 has the newer 4.4.4 version while Xiaomi Redmi Note 9 has Android 10, providing lots of additional features and improved performance. Xperia Z3's body has the same thickness than the Xiaomi Redmi Note 9, but it's somewhat lighter.
The Xperia Z3 features a much sharper display than Xiaomi Redmi Note 9, because although it has a lot smaller display and a bit worse resolution of 1920 x 1080, it also counts with a bit better screen density. The Xiaomi Redmi Note 9 counts with a lot bigger storage for games and applications than Sony Xperia Z3, and although they both have an external SD slot that holds up to 128 GB, the Xiaomi Redmi Note 9 also has more internal memory capacity.
Xperia Z3 features a little faster processing unit than Xiaomi Redmi Note 9, because although it has less processing cores (although faster), and they both have the same RAM amount, the Xperia Z3 also counts with an extra graphics co-processor. Xiaomi Redmi Note 9 counts with just a bit better camera than Sony Xperia Z3, and although they both have the same video frame rate and the same 1920x1080 (Full HD) video resolution, the Xiaomi Redmi Note 9 also has a bigger back camera sensor capturing more light and vivid colors, a lot more megapixels back facing camera and a larger aperture to capture better photos and videos in low-light situations.
Xiaomi Redmi Note 9 counts with a way better battery duration than Xperia Z3, because it has 5020mAh of battery capacity against 3200mAh.
The Sony Xperia Z3 is not only the best phones of the ones in this comparison, but it's also very cheap compared to the other phones.
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