Compare phones
| Global Score | |
| 76.7 | 83.3 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | -- |
| 2021-05-27 | 2018-03-16 |
| 6.23 x 2.96 x 0.33 inches | 5.81 x 2.70 x 0.33 inches |
| 6.70 ounces | 5.75 ounces |
| Moonlight White, Neptune Blue and Space Black, | Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray |
| Glass and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 158.00 |
| Display / Screen | |
| 6.3 inches | 5.8 inches |
| 2340 x 1080 pixels | 2960 x 1440 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.9 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali G52 MC2 GPU | Adreno 630 GPU |
| 9.09 | 9.54 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 10.02 | 11.34 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.00 MP + 8.00 MP |
| f/1.80 aperture | f/1.50 aperture |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11 | 10.23 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 4.96 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S9 has a score of 83.3, which is slightly better than the Xiaomi Redmi Note 8 2021's 76.7 global score. The Galaxy S9 is a lighter phone than Xiaomi Redmi Note 8 2021, but they have the same thickness. The Samsung Galaxy S9 has a bit better processing unit than Xiaomi Redmi Note 8 2021. Both have the same RAM amount and 8 processing cores.
The Galaxy S9 features a little sharper screen than Xiaomi Redmi Note 8 2021, because although it has a bit smaller screen, it also counts with a higher 1440 x 2960 resolution and a greater pixels density. Xiaomi Redmi Note 8 2021 takes slightly better videos and photos than Samsung Galaxy S9, because although it has a smaller aperture which is not good for low-light captures and worse 30 frames per second video frame rate, and they both have the same (Full HD) video quality, the Xiaomi Redmi Note 8 2021 also counts with a much larger back camera sensor capturing more light and vivid colors and a back camera with a lot higher 48 mega-pixels resolution.
Galaxy S9 features more storage for games and applications than Xiaomi Redmi Note 8 2021, and although they both have equal 64 GB internal memory, the Galaxy S9 also has an external SD slot that supports a maximum of 400 GB. The Xiaomi Redmi Note 8 2021 features superior battery performance than Galaxy S9, because it has a 4000mAh battery capacity.
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