| Global Score | |
| 71.6 | 83.3 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 4.4.2, 4.2.1 | Android 10, 9.0 Pie, 8.0 Oreo |
| 0000-00-00 | 2018-06-05 |
| 5.67 x 2.90 x 0.32 inches | 6.10 x 2.94 x 0.30 inches |
| 5.11 ounces | 6.17 ounces |
| Black | Black, Blue, Gold and White |
| -- | Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| $ 300.00 | -- |
| Display / Screen | |
| 5 inches | 6.2 inches |
| 1080 x 1920 pixels (Full HD) | 2248 x 1080 pixels |
| IPS LCD | AMOLED |
| 441 pixels per inch | 402 pixels per inch |
| -- | 600 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 800 8974-AB chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Krait 400 (Quad-Core 2360 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 2 GB (933 MHz) RAM | 6 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 630 GPU |
| 9.27 | 9.63 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 7.7 | 13.3 |
| Camera | |
| 13.00 MP + 2.00 MP | 12.00 MP + 20.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 56.00mm focal length |
| -- | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 8.91 | 9.9 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 4.6 | 6.7 |
| Battery Life | |
| 3050mAh Li-Ion Battery | 3400mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.36 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
The Xiaomi Mi 8 is much better than the Xiaomi Mi-3, getting an 83.3 score against 71.6. The Xiaomi Mi 8 body is a little bit thinner but somewhat heavier than Xiaomi Mi-3. Both of these phones have Android OS (operating system), but the Xiaomi Mi 8 has older 10 version while Xiaomi Mi-3 has Android 4.4.2 version.
The Xiaomi Mi-3 features a little bit better screen than Xiaomi Mi 8, because although it has a little smaller display and a quite lower 1920 x 1080 pixels resolution, it also counts with a quite better pixel amount in each inch in the display. Xiaomi Mi 8 has a much better memory capacity for applications and games than Xiaomi Mi-3, because it has 256 GB internal memory capacity.
The Xiaomi Mi 8 counts with a bit superior processing unit than Xiaomi Mi-3, because although it has doesn't have a graphics processing unit, it also counts with a greater number of cores (and faster) and a greater amount of RAM memory. The Xiaomi Mi 8 shoots better photographs and videos than Xiaomi Mi-3, because although it has a camera with lesser mega pixels, it also counts with a much higher 3840x2160 (4K) video quality and a larger aperture to take better photos in low light environments.
The Xiaomi Mi 8 features a bit better battery lifetime than Xiaomi Mi-3, because it has an 11 percent larger battery size.
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