Compare phones
| Global Score | |
| 11.67 | 8.88 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 7.1 Nougat |
| 2021-01-29 | 2018-02-22 |
| 6.50 x 2.98 x 0.35 inches | 6.24 x 2.97 x 0.32 inches |
| 8.04 ounces | 6.35 ounces |
| Phantom black and Silver | 16 777 216 |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6 inches |
| 3200 x 1440 pixels | 2160 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 516 pixels per inch | 402 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 625 8953 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 506 GPU |
| 9.72 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 128 GB) external memory slot |
| 10.1 | 10.02 |
| Camera | |
| 108.00 MP + 40.00 MP | 12.00 MP + 5.00 MP |
| f/1.80 aperture | f/2.20 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 8.8 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA and HSUPA |
| Nano SIM | Micro SIM |
| 10.7 | 6.1 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 5.04 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy S21 Ultra is much better than the Xiaomi Redmi Note 5, having a 11.67 score against 8.88. Both phones in this comparison come with Android OS, but Samsung Galaxy S21 Ultra has older 11 version and Xiaomi Redmi Note 5 has Android 7.1 Nougat. Even though the Samsung Galaxy S21 Ultra is noticeably newer than the Xiaomi Redmi Note 5, it's just a little thicker and a lot heavier.
The Galaxy S21 Ultra counts with a bit more powerful CPU than Xiaomi Redmi Note 5, and although they both have a Octa-Core processor, the Galaxy S21 Ultra also has a higher amount of RAM memory. Galaxy S21 Ultra counts with an incredibly better display than Xiaomi Redmi Note 5, because it has a higher quantity of pixels per screen inch, a little bit larger display and a higher resolution of 1440 x 3200px.
Samsung Galaxy S21 Ultra takes much better pictures and videos than Xiaomi Redmi Note 5, because it has a way better video resolution, a lot more mega-pixels back facing camera and a bigger camera aperture. Samsung Galaxy S21 Ultra counts with a slightly better storage capacity to install applications and games or saving photos and videos than Xiaomi Redmi Note 5, because although it has no SD card slot, it also counts with 128 GB internal memory.
Xiaomi Redmi Note 5 counts with a bit longer battery lifetime than Galaxy S21 Ultra, although it has 4000mAh of battery capacity.