| Global Score | |
| 80.9 | 83.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 5.0 | Android 10, 9.0 Pie, 8.0 Oreo |
| -- | 2018-06-05 |
| 5.78 x 2.90 x 0.35 inches | 6.10 x 2.94 x 0.30 inches |
| -- | 6.17 ounces |
| -- | Black, Blue, Gold and White |
| -- | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 245.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.2 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2248 x 1080 pixels |
| Super AMOLED | AMOLED |
| 576 pixels per inch | 402 pixels per inch |
| -- | 600 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 8.6 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 3 GB (1600 MHz) RAM | 6 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Adreno 630 GPU |
| 10.08 | 9.63 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSD external memory slot | No SD card slot |
| 5.8 | 13.3 |
| Camera | |
| 16.00 MP + 5.00 MP | 12.00 MP + 20.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| -- | 56.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 8.47 | 9.9 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3500mAh Battery | 3400mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 5.44 | 5.36 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Xiaomi Mi 8 is slightly better than Galaxy S6 Active, with a overall score of 83.3 against 80.9. Both of these phones work with Android OS (Operating System), but the Xiaomi Mi 8 has a more recent 10 version and Galaxy S6 Active has Android 5.0 version, so it provides the user some extra features and performance enhancements.
Galaxy S6 Active features a sharper screen than Xiaomi Mi 8, because although it has a little smaller screen, it also counts with a higher pixels density and a better 2560 x 1440 resolution. Galaxy S6 Active has a little faster processing unit than Xiaomi Mi 8, because although it has 3 GB lesser RAM, and they both have the same number of cores, the Galaxy S6 Active also counts with a 64-bits processing unit and a graphics processor.
The Xiaomi Mi 8 counts with a way bigger storage capacity to install games and applications than Galaxy S6 Active, because although it has no slot for an SD memory card, it also counts with 256 GB internal storage. Xiaomi Mi 8 features a superior camera than Samsung Galaxy S6 Active, because although it has a back-facing camera with a much lower resolution and a lower video resolution, it also counts with a bigger aperture for better captures in low light situations and a larger camera sensor shooting better quality videos and photos.
Samsung Galaxy S6 Active has a bit better battery lifetime than Xiaomi Mi 8, because it has a 3500mAh battery size against 3400mAh.
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